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1. A phase transformable ultrastable titanium-carboxylate framework for photoconduction

Author: Sujing Wang, Takashi Kitao, Nathalie Guillou, Mohammad Wahiduzzaman, Charlotte Martineau-Corcos, Farid Nouar, Antoine Tissot, Laurent Binet, Naseem Ramsahye, Sabine Devautour-Vinot, Susumu Kitagawa, Shu Seki, Yusuke Tsutsui, Valérie Briois, Nathalie Steunou, Guillaume Maurin, Takashi Uemura, and Christian Serre
Subjects: Science
Abstract: Porous TiO2 materials are attractive for energy-related applications owing to their accessible active sites, but suffer from poor stability. Here the authors synthesize a highly stable and porous metal–organic framework containing polymeric 1D Ti–O subunits, which displays a high condensation degree and high photoconductivity.
Published: 2018
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2. Characterizing Rain Cells as Measured by a Ka-Band Nadir Radar Altimeter: First Results and Impact on Future Altimetry Missions

Author: Bruno Picard, Nicolas Picot, Gérald Dibarboure, and Nathalie Steunou
Subjects: rain cells, atmospheric attenuation, microwave radar, Ka-band, altimetry, Science
Abstract: The impact of large atmospheric attenuation events on data quality and availability is a critical aspect for future altimetry missions based on Ka-band altimetry. The SARAL/AltiKa mission and its Ka-band nadir altimeter offer a unique opportunity to assess this impact. Previous publications (Tournadre et al., 2009, 2015) already analyzed the impact of rain on the waveforms at Ka-band and proposed a definition of an elaborate rain flag. This notion tends to give a simpler black and white view of the atmospheric attenuation when the effect on the altimeter measurement is intense. However, in practice, there is a continuum of measurements that may be partially distorted or corrupted by rain events. The present study proposes a wider point of view, directly using the timeseries of the Ka-band altimeter backscattering coefficient for the first time, when previous studies relied on microwave radiometer (MWR) observations or model analyses with coarser resolutions. As guidelines for future Ka-band missions concerning the impact of the atmosphere, the Attenuation CElls Characterization ALgorithm (ACECAL) approach not only provides more representative statistics on rain cells (occurrences, amplitude, size), but also describes the internal structure of the cells. The actual atmospheric attenuation retrieved with ACECAL is about four times larger than the attenuation retrieved from the MWR. At a global scale, 1% of the measurements are affected by an attenuation larger than 23 dB and 10% of the atmospheric attenuation events have a size larger than 40 km. At regional scale, some areas of particular interest for oceanography as Gulf Stream, North Pacific and Brazil currents are more systematically affected compared with global statistics, with atmospheric attenuation up to 8 dB and cell size larger than 25 km when rain occurs. This study also opens some perspectives on the benefits that the community could be drawn from the systematic distribution of the rain cells parameters as secondary products of altimetry missions.
Published: 2021
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3. C2OMODO: A Tandem of Innovative Radiometers for High Resolution All-Sky Atmospheric Sounding as Part of the AOS Mission.

Author: Laura Hermozo, Jérôme Puech, Hélène Brogniez, Rémy Roca, Thomas Fiolleau, Jean-Pierre Chaboureau, Franck Auguste, Dominique Bougniol, Julien Delanoë, Thierry Amiot, Nathalie Steunou, Rocio Redondo, Xavier Boulanger, Roseline Schmisser, Benjamin Carayon, Samuel Melle, Christophe Malassingne, Laurent Costes, Jean-Claude Orlhac, Adrien Moraine, Stephane Le Drogo, Carole Tucker, Peter Ade, Ian Walker, Jeanne Treuttel, Gregory Gay 0003, Lina Gatilova, Alexandre Feret, Thibaut Vacelet, and Jean-Michel Krieg
Published: 2024
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4. AltiKa: a Ka-band Altimetry Payload and System for Operational Altimetry during the GMES Period

Author: Jacques Verron, Eric Thouvenot, Laurent Rey, Laurent Phalippou, Eric Caubetq, Nathalie Steunou, and Patrick Vincent
Subjects: altimeter, radiometer, ocean mesoscale circulation, Ka-band., Chemical technology, TP1-1185
Abstract: This paper describes the Ka-band altimetry payload and system that has beenstudied for several years by CNES, ALCATEL SPACE and some science laboratories.Altimetry is one of the major elements of the ocean observing system to be madesustainable through the GEOSS (Global Earth Observation System of Systems) and GMES(Global Monitoring of the Environment and Security) programs. A short review of somemission objectives to be fulfilled in terms of mesoscale oceanography in the frame of theGEOSS and GMES programs is performed. To answer the corresponding requirements, theapproach consisting in a constellation of nadir altimeter is discussed. A coupled Ka-bandaltimeter-radiometer payload is then described; technical items are detailed to explain howthis payload shall meet the science and operational requirements, and expectedperformances are displayed. The current status of the payload development and flightperspectives are given.
Published: 2006
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5. Hierarchical superparamagnetic metal–organic framework nanovectors as anti-inflammatory nanomedicines

Author: Heng Zhao, Saad Sene, Angelika M. Mielcarek, Sylvain Miraux, Nicolas Menguy, Dris Ihiawakrim, Ovidiu Ersen, Christine Péchoux, Nathalie Guillou, Joseph Scola, Jean-Marc Grenèche, Farid Nouar, Simona Mura, Florent Carn, Florence Gazeau, Eddy Dumas, Christian Serre, Nathalie Steunou, Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de résonance magnétique des systèmes biologiques (CRMSB), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay, Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Groupe d'Etude de la Matière Condensée (GEMAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Galien Paris-Saclay (IGPS), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: Biomedical Engineering, [CHIM]Chemical Sciences, General Materials Science, General Chemistry, General Medicine
Abstract: International audience; Among a plethora of drug nanocarriers, biocompatible nanoscale metal-organic frameworks (nanoMOFs) with a large surface area and an amphiphilic internal microenvironment have emerged as promising drug delivery platforms, mainly for cancer therapy. However, their application in biomedicine still suffers from shortcomings such as a limited chemical and/or colloidal stability and/or toxicity. Here, we report the design of a hierarchically porous nano-object (denoted as USPIO@MIL) combining a benchmark nanoMOF (that is, MIL-100(Fe)) and ultra-small superparamagnetic iron oxide (USPIO) nanoparticles (that is, maghemite) that is synthesized through a one-pot, cost-effective and environmentally friendly protocol. The synergistic coupling of the physico-chemical and functional properties of both nanoparticles confers to these nano-objects valuable features such as high colloidal stability, high biodegradability, low toxicity, high drug loading capacity as well as stimuli-responsive drug release and superparamagnetic properties. This bimodal MIL-100(Fe)/maghemite nanocarrier once loaded with anti-tumoral and anti-inflammatory drugs (doxorubicin and methotrexate) shows high anti-inflammatory and anti-tumoral activities. In addition, the USPIO@MIL nano-object exhibits excellent relaxometric properties and its applicability as an efficient contrast agent for magnetic resonance imaging is herein demonstrated. This highlights the high potential of the maghemite@MOF composite integrating the functions of imaging and therapy as a theranostic anti-inflammatory formulation.
Published: 2023
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6. Altimetry for the Future: Building on 25 Years of Progress

Author: Saleh Abdalla, Abdolnabi Abdeh Kolahchi, Susheel Adusumilli, Suchandra Aich Bhowmick, Eva Alou-Font, Laiba Amarouche, Ole Baltazar Andersen, Helena Antich, Lotfi Aouf, Brian Arbic, Thomas Armitage, Sabine Arnault, Camila Artana, Giuseppe Aulicino, Nadia Ayoub, Sergei Badulin, Steven Baker, Chris Banks, Lifeng Bao, Silvia Barbetta, Barbara Barcelo-Llull, Francois Barlier, Sujit Basu, Peter Bauer-Gottwein, Matthias Becker, Brian Beckley, Nicole Bellefond, Tatyana Belonenko, Mounir Benkiran, Touati Benkouider, Ralf Bennartz, Jerome Benveniste, Nicolas Bercher, Muriel Berge-Nguyen, Joao Bettencourt, Fabien Blarel, Alejandro Blazquez, Denis Blumstein, Pascal Bonnefond, Franck Borde, Jerome Bouffard, Francois Boy, Jean-Paul Boy, Cedric Brachet, Pierre Brasseur, Alexander Braun, Luca Brocca, David Brockley, Laurent Brodeau, Shannon Brown, Sean Bruinsma, Anna Bulczak, Sammie Buzzard, Madeleine Cahill, Stephane Calmant, Michel Calzas, Stefania Camici, Mathilde Cancet, Hugues Capdeville, Claudia Cristina Carabajal, Loren Carrere, Anny Cazenave, Eric P. Chassignet, Prakash Chauhan, Selma Cherchali, Teresa Chereskin, Cecile Cheymol, Daniele Ciani, Paolo Cipollini, Francesca Cirillo, Emmanuel Cosme, Steve Coss, Yuri Cotroneo, David Cotton, Alexandre Couhert, Sophie Coutin-Faye, Jean-Francois Cretaux, Frederic Cyr, Francesco d’Ovidio, Jose Darrozes, Cedric David, Nadim Dayoub, Danielle De Staerke, Xiaoli Deng, Shailen Desai, Jean-Damien Desjonqueres, Denise Dettmering, Alessandro Di Bella, Lara Dıaz-Barroso, Gerald Dibarboure, Habib Boubacar Dieng, Salvatore Dinardo, Henryk Dobslaw, Guillaume Dodet, Andrea Doglioli, Alessio Domeneghetti, David Donahue, Shenfu Dong, Craig Donlon, Joel Dorandeu, Christine Drezen, Mark Drinkwater, Yves Du Penhoat, Brian Dushaw, Alejandro Egido, Svetlana Erofeeva, Philippe Escudier, Saskia Esselborn, Pierre Exertier, Ronan Fablet, Cedric Falco, Sinead Louise Farrell, Yannice Faugere, Pierre Femenias, Luciana Fenoglio, Joana Fernandes, Juan Gabriel Fernandez, Pascale Ferrage, Ramiro Ferrari, Lionel Fichen, Paolo Filippucci, Stylianos Flampouris, Sara Fleury, Marco Fornari, Rene Forsberg, Frederic Frappart, Marie-laure Frery, Pablo Garcia, Albert Garcia-Mondejar, Julia Gaudelli, Augusto Getirana, Lucile Gaultier, Ferran Gibert, Artur Gil, Lin Gilbert, Sarah Gille, Luisella Giulicchi, Jesus Gomez-Enri, Laura Gomez-Navarro, Christine Gommenginger, Lionel Gourdeau, David Griffin, Andreas Groh, Alexandre Guerin, Raul Guerrero, Thierry Guinle, Praveen Gupta, Benjamin D. Gutknecht, Mathieu Hamon, Guoqi Han, Daniele Hauser, Veit Helm, Stefan Hendricks, Fabrice Hernandez, Anna Hogg, Martin Horwath, Martina Idzanovic, Peter Janssen, Eric Jeansou, Yongjun Jia, Yuanyuan Jia, Liguang Jiang, Johnny A. Johannessen, Masafumi Kamachi, Svetlana Karimova, Kathryn Kelly, Sung Yong Kim, Robert King, Cecile M.M. Kittel, Patrice Klein, Anna Klos, Per Knudsen, Rolf Koenig, Andrey Kostianoy, Alexei Kouraev, Raj Kumar, Sylvie Labroue, Loreley Selene Lago, Juliette Lambin, Lea Lasson, Olivier Laurain, Remi Laxenaire, Clara Lazaro, Sophie Le Gac, Julien Le Sommer, Pierre-Yves Le Traon, Sergey Lebedev, Fabien Leger, Benoit Legresy, Frank Lemoine, Luc Lenain, Eric Leuliette, Marina Levy, John Lillibridge, Jianqiang Liu, William Llovel, Florent Lyard, Claire Macintosh, Eduard Makhoul Varona, Cécile Manfredi, Frédéric Marin, Evan Mason, Christian Massari, Constantin Mavrocordatos, Nikolai Maximenko, Malcolm McMillan, Thierry Medina, Angelique Melet, Marco Meloni, Stelios Mertikas, Sammy Metref, Benoit Meyssignac, Jean-François Minster, Thomas Moreau, Daniel Moreira, Yves Morel, Rosemary Morrow, John Moyard, Sandrine Mulet, Marc Naeije, Robert Steven Nerem, Hans Ngodock, Karina Nielsen, Jan Even Øie Nilsen, Fernando Niño, Carolina Nogueira Loddo, Camille Noûs, Estelle Obligis, Inès Otosaka, Michiel Otten, Berguzar Oztunali Ozbahceci, Roshin P. Raj, Rodrigo Paiva, Guillermina Paniagua, Fernando Paolo, Adrien Paris, Ananda Pascual, Marcello Passaro, Stephan Paul, Tamlin Pavelsky, Christopher Pearson, Thierry Penduff, Fukai Peng, Felix Perosanz, Nicolas Picot, Fanny Piras, Valerio Poggiali, Étienne Poirier, Sonia Ponce de León, Sergey Prants, Catherine Prigent, Christine Provost, M-Isabelle Pujol, Bo Qiu, Yves Quilfen, Ali Rami, R. Keith Raney, Matthias Raynal, Elisabeth Remy, Frédérique Rémy, Marco Restano, Annie Richardson, Donald Richardson, Robert Ricker, Martina Ricko, Eero Rinne, Stine Kildegaard Rose, Vinca Rosmorduc, Sergei Rudenko, Simón Ruiz, Barbara J. Ryan, Corinne Salaün, Antonio Sanchez-Roman, Louise Sandberg Sørensen, David Sandwell, Martin Saraceno, Michele Scagliola, Philippe Schaeffer, Martin G. Scharffenberg, Remko Scharroo, Andreas Schiller, Raphael Schneider, Christian Schwatke, Andrea Scozzari, Enrico Ser-giacomi, Frederique Seyler, Rashmi Shah, Rashmi Sharma, Andrew Shaw, Andrew Shepherd, Jay Shriver, C.K. Shum, Wim Simons, Sebatian B. Simonsen, Thomas Slater, Walter Smith, Saulo Soares, Mikhail Sokolovskiy, Laurent Soudarin, Ciprian Spatar, Sabrina Speich, Margaret Srinivasan, Meric Srokosz, Emil Stanev, Joanna Staneva, Nathalie Steunou, Julienne Stroeve, Bob Su, Yohanes Budi Sulistioadi, Debadatta Swain, Annick Sylvestre-baron, Nicolas Taburet, Rémi Tailleux, Katsumi Takayama, Byron Tapley, Angelica Tarpanelli, Gilles Tavernier, Laurent Testut, Praveen K. Thakur, Pierre Thibaut, LuAnne Thompson, Joaquín Tintoré, Céline Tison, Cédric Tourain, Jean Tournadre, Bill Townsend, Ngan Tran, Sébastien Trilles, Michel Tsamados, Kuo-Hsin Tseng, Clément Ubelmann, Bernd Uebbing, Oscar Vergara, Jacques Verron, Telmo Vieira, Stefano Vignudelli, Nadya Vinogradova Shiffer, Pieter Visser, Frederic Vivier, Denis Volkov, Karina von Schuckmann, Valerii Vuglinskii, Pierrik Vuilleumier, Blake Walter, Jida Wang, Chao Wang, Christopher Watson, John Wilkin, Josh Willis, Hilary Wilson, Philip Woodworth, Kehan Yang, Fangfang Yao, Raymond Zaharia, Elena Zakharova, Edward D. Zaron, Yongsheng Zhang, Zhongxiang Zhao, Vadim Zinchenko, and Victor Zlotnicki
Subjects: Space Sciences (General), Geosciences (General)
Abstract: In 2018 we celebrated 25 years of development of radar altimetry, and the progress achieved by this methodology in the fields of global and coastal oceanography, hydrology, geodesy and cryospheric sciences. Many symbolic major events have celebrated these developments, e.g., in Venice, Italy, the 15th (2006) and 20th (2012) years of progress and more recently, in 2018, in Ponta Delgada, Portugal, 25 Years of Progress in Radar Altimetry. On this latter occasion it was decided to collect contributions of scientists, engineers and managers involved in the worldwide altimetry community to depict the state of altimetry and propose recommendations for the altimetry of the future. This paper summarizes contributions and recommendations that were collected and provides guidance for future mission design, research activities, and sustainable operational radar altimetry data exploitation. Recommendations provided are fundamental for optimizing further scientific and operational advances of oceanographic observations by altimetry, including requirements for spatial and temporal resolution of altimetric measurements, their accuracy and continuity. There are also new challenges and new openings mentioned in the paper that are particularly crucial for observations at higher latitudes, for coastal oceanography, for cryospheric studies and for hydrology. The paper starts with a general introduction followed by a section on Earth System Science including Ocean Dynamics, Sea Level, the Coastal Ocean, Hydrology, the Cryosphere and Polar Oceans and the ‘‘Green” Ocean, extending the frontier from biogeochemistry to marine ecology. Applications are described in a subsequent section, which covers Operational Oceanography, Weather, Hurricane Wave and Wind Forecasting, Climate projection. Instruments’ development and satellite missions’ evolutions are described in a fourth section. A fifth section covers the key observations that altimeters provide and their potential complements, from other Earth observation measurements to in situ data. Section 6 identifies the data and methods and provides some accuracy and resolution requirements for the wet tropospheric correction, the orbit and other geodetic requirements, the Mean Sea Surface, Geoid and Mean Dynamic Topography, Calibration and Validation, data accuracy, data access and handling (including the DUACS system). Section 7 brings a transversal view on scales, integration, artificial intelligence, and capacity building (education and training). Section 8 reviews the programmatic issues followed by a conclusion.
Published: 2021
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7. Engineering of Metal–Organic Frameworks/Gelatin Hydrogel Composites Mediated by the Coacervation Process for the Capture of Acetic Acid

Author: Subharanjan Biswas, Mohamed Haouas, Cátia Freitas, Carla Vieira Soares, Abeer Al Mohtar, Ali Saad, Heng Zhao, Georges Mouchaham, Carine Livage, Florent Carn, Nicolas Menguy, Guillaume Maurin, Moises L. Pinto, and Nathalie Steunou
Subjects: General Chemical Engineering, Materials Chemistry, General Chemistry
Published: 2022
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8. Encapsulation of Microperoxidase‐8 into MIL‐101(Cr/Fe) Nanoparticles: A New Biocatalyst for the Epoxidation of Styrene

Author: Xavier Kesse, Clémence Sicard, Nathalie Steunou, Jean‐Pierre Mahy, and Rémy Ricoux
Subjects: Inorganic Chemistry
Published: 2023
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9. In Operando Spectroscopic Ellipsometry Investigation of MOF Thin Films for the Selective Capture of Acetic Acid

Author: Sanchari Dasgupta, Subharanjan Biswas, Kevin Dedecker, Eddy Dumas, Nicolas Menguy, Bruno Berini, Bertrand Lavedrine, Christian Serre, Cédric Boissière, Nathalie Steunou, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Groupe d'Etude de la Matière Condensée (GEMAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Procédés (LCMCP-MHP ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and This work was supported by the Ecole Universitaire de recherche PSGS HCH Humanities, Creation, Heritage, Investissement d’Avenir ANR-17-EURE-0021 - Fondation des sciences du patrimoine. This work has been sponsored by the Ile-de-France Region in the framework of Respore, the Île-de-France network of Excellence in Porous Solids. The authors acknowledge Ali Saad for SEM experiments.
Subjects: Ellipsometry, adsorption, Thin films, [SDE]Environmental Sciences, [CHIM]Chemical Sciences, General Materials Science, Volatile organic compounds, MOFs
Abstract: International audience; The emission of polar volatile organic compounds (VOCs) is a major worldwide concern of air quality and equally impacts the preservation of cultural heritage (CH). The challenge is to design highly efficient adsorbents able to selectively capture traces of VOCs such as acetic acid (AA) in the presence of relative humidity (RH) normally found at storage in museums (40-80%). Although the selective capture of VOCs over water is still challenging, Metal-Organic Frameworks (MOFs) possess highly tunable features (Lewis, Bronsted or redox metal sites, functional groups, hydrophobicity…) suitable to selectively capture a large variety of VOCs. In this context, we have explored the adsorption efficiency of a series of MOFs thin films (ZIF-8(Zn), MIL-101(Cr) and UiO-66(Zr)-2CF3) for the selective capture of AA based on a UV/Vis and FT-IR spectroscopic ellip-sometry in operando study (2-6% of relative pressure of AA under 40% of RH), namely conditions close to the realistic envi-ronmental storage conditions of cultural artefacts. For that purpose, optical quality thin films of MOFs were prepared by dip-coating and their AA adsorption capacity and selectivity were evaluated under humid conditions by measuring the variation of the refractive index as a function of the vapor pressures while the chemical nature of the co-adsorbed analytes (water and AA) was identified by FT-IR ellipsometry. While thin films of ZIF-8(Zn) strongly degraded when exposed to AA/water va-pors, films of MIL-101(Cr) and UiO-66(Zr)-2CF3 present a high chemical stability under those conditions. It was shown that MIL-101(Cr) presents a high AA adsorption capacity due to its high pore volume, but exhibits a poor AA adsorption selectivi-ty under humid conditions. In contrast, UiO-66(Zr)-2CF3 was shown to overpass MIL-101(Cr) in terms of AA/ H2O adsorp-tion selectivity and AA adsorption/desorption cycling stability thanks to its high hydrophobic character, suitable pore size for adequate confinement and specific interactions.
Published: 2023
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10. Metal–organic frameworks for the capture of α-pinene traces

Author: Patrick P. Conti, Kamal Batra, Paul Iacomi, Carla Vieira Soares, Sanchari Dasgupta, Nathalie Steunou, Agnès Lattuati-Derieux, Noëlle Timbart, Mélanie Nicolas, Rukshala Anton, Stéphane Moularat, Guillaume Maurin, and Sabine Devautour-Vinot
Subjects: Materials Chemistry, Metals and Alloys, Ceramics and Composites, General Chemistry, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials
Abstract: MIL-125(Ti)-NH2 for the abatement of α-pinene at concentrations encountered in indoor air.
Published: 2023
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11. Characteristics and performances of the AltiKa radiometer of SARAL mission.

Author: Nicolas Taveneau, Frédéric Robert, Jacques Richard, Nathalie Steunou, and Pierre Sengenes
Published: 2011
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12. Altika Instrument for Space Altimetry with Improved Performances and Ocean Sampling : Development Status and First Test Results.

Author: Jacques Richard, Benoît Durand, Frédéric Robert, Nicolas Taveneau, Nathalie Steunou, and Pierre Sengenes
Published: 2008
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13. Classification of Altimetric Signals using Linear Discriminant Analysis.

Author: Jean-Yves Tourneret, Corinne Mailhes, Laiba Amarouche, and Nathalie Steunou
Published: 2008
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14. An advanced concept of radar altimetry over oceans with improved performances and ocean sampling : AltiKa.

Author: Jacques Richard, Laurent Phalippou, Frédéric Robert, Nathalie Steunou, Eric Thouvenot, and Pierre Sengenes
Published: 2007
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15. Metal–organic framework/graphene oxide composites for CO2 capture by microwave swing adsorption

Author: Christian Serre, Gilles Patriarche, Nicolas Heymans, Damien Aureau, Alexandros Ploumistos, Mégane Muschi, Rudolf Emmerich, Sabine Devautour-Vinot, Saad Sene, Guy De Weireld, Nathalie Steunou, Amine Geneste, Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service de Thermodynamique et Physique Mathématique - Faculté Polytechnique de Mons, Université de Mons-Hainaut, Fraunhofer Institute for Chemical Technology (Fraunhofer ICT), Fraunhofer (Fraunhofer-Gesellschaft), and Université Paris-Saclay
Subjects: Materials science, Renewable Energy, Sustainability and the Environment, Graphene, Composite number, Oxide, 02 engineering and technology, General Chemistry, Microporous material, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, law.invention, chemistry.chemical_compound, Adsorption, chemistry, law, Desorption, [CHIM]Chemical Sciences, General Materials Science, Metal-organic framework, Composite material, 0210 nano-technology, Microwave
Abstract: Metal–organic frameworks (MOFs)/graphene oxide (GO) composites are of growing interest due to their properties which can exceed those of the pure components, including post-combustion CO2 capture. Series of composites suitable for CO2 capture under flue gas conditions based on the microporous water stable MIL-91(Ti) have been prepared with different GO contents, following two routes, in situ and post-synthetic. It was observed that the 5 wt% GO in situ composite exhibits a semi-conducting behavior, while the post-synthetic materials are insulating, even with high (20 wt%) GO content. As a consequence, this composite absorbs microwave radiation more efficiently compared to the pure MOF and post-synthetic materials. Finally, we report that CO2 desorption is much faster under microwave irradiation compared to direct electric heating on MOF/GO in situ materials, paving the way for future energy-saving microwave swing adsorption processes.
Published: 2021
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16. Growth of Fe‐BDC Metal‐Organic Frameworks onto Functionalized Si (111) Surfaces

Author: Hongye Yuan, Weichu Fu, Nadia Soulmi, Christian Serre, Nathalie Steunou, Michel Rosso, and Catherine Henry de Villeneuve
Subjects: Organic Chemistry, General Chemistry, Biochemistry
Abstract: The realization of metal-organic framework (MOF) layers onto solid surfaces is a prerequisite for their integration into devices. This work reports the direct growth of Fe
Published: 2022
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17. MIL-101(Cr) MOF as an Effective Siloxane Sensor

Author: Paul Iacomi, Ezgi Gulcay-Ozcan, Patrick Pires Conti, Subharanjan Biswas, Nathalie Steunou, Guillaume Maurin, Guillaume Rioland, and Sabine Devautour-Vinot
Subjects: General Materials Science
Abstract: Volatile methylsiloxanes (VMSs) are common silicone degradation byproducts that cause serious concern for the contamination of sensitive electronics and optics, among others. With the goal of fast, online detection of VMS, we herein highlight the mesoporous MIL-101(Cr) MOF as a promising mass sensing layer for integration with a quartz crystal microbalance (QCM), using an in-house modified gravimetric adsorption system capable of achieving extremely low concentrations of siloxane D4 (down to 0.04 ppm), targeting applications for monitoring in indoor spaces and spacecraft. Our developed MIL-101(Cr)@QCM sensor achieves near-perfect reversibility with no hysteresis alongside excellent repeatability over cycling and fast response/recovery times under 1 min. We attribute this capability to optimum host/guest interactions as uncovered through molecular simulations.
Published: 2022

18. Formation of a Single‐Crystal Aluminum‐Based MOF Nanowire with Graphene Oxide Nanoscrolls as Structure‐Directing Agents

Author: Damien Aureau, Nicolas Menguy, Anusha Lalitha, Saad Sene, Christian Serre, Lucie Rivier, Imène Esteve, Nathalie Steunou, Mathieu Fregnaux, Guillaume Maurin, Naseem A. Ramsahye, Mégane Muschi, Clémence Sicard, Sabine Devautour-Vinot, Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP UMR8004 FRE2000), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie et de physique des milieux condensés (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Materials science, Nanostructure, Oxide, Nanowire, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Catalysis, law.invention, chemistry.chemical_compound, X-ray photoelectron spectroscopy, law, [CHIM]Chemical Sciences, [CHIM.COOR]Chemical Sciences/Coordination chemistry, ComputingMilieux_MISCELLANEOUS, 010405 organic chemistry, Graphene, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, General Medicine, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Chemical engineering, Electron diffraction, chemistry, Self-assembly, 0210 nano-technology, Single crystal
Abstract: International audience; Here we propose an innovative strategy to synthesize single-crystal nanowires (NWs) of the Al 3+ dicarboxylate MIL-69(Al) MOF by using graphene oxide nanoscrolls as structure directing agents. MIL-69(Al) NWs with an average diameter of 70 ± 20 nm and lengths up to 2 m were found to preferentially grow along the [001] crystallographic direction. Advanced characterization tools (electron diffraction, TEM, STEM-HAADF, SEM, XPS) and molecular modelling revealed the mechanism of formation of MIL-69(Al) NWs involving size-confinement and templating effects. The formation of MIL-69(Al) seeds and the self-scroll of GO sheets followed by the anisotropic growth of MIL-69(Al) crystals are mediated by specific GO sheets/MOF interactions. This study delivers an unprecedented approach to control the design of 1D MOF nanostructures and superstructures.
Published: 2020
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19. Optimization of MIL-178(Fe) and Pebax® 3533 loading in mixed matrix membranes for CO2 capture

Author: Md Rafiul Hasan, Heng Zhao, Nathalie Steunou, Christian Serre, Magdalena Malankowska, Carlos Téllez, Joaquín Coronas, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Gobierno de Aragón, and Universidad de Zaragoza
Subjects: Pebax® 3533, General Energy, Porous coordination polymer, Carbon dioxide, MIL-178(Fe), Gas separation, Mixed matrix membrane, Management, Monitoring, Policy and Law, Pollution, Industrial and Manufacturing Engineering
Abstract: Global warming is considered as a consequence of extensive use of fossil fuels. Post combustion CO2 capture is an interesting and alternative solution where mixed matrix membranes (MMMs) can be an exciting candidate. This research focuses on the optimization of MMM composition consisting of Pebax® 3533 as the polymer matrix and porous coordination polymer (PCP) MIL-178(Fe) as a filler for gas separation application. MIL-178(Fe) characterized with SEM, TEM and TGA were applied to compare bare polymer and MMM. Optimum composition of the MMM obtained was 5 wt.% MIL-178(Fe) in Pebax® 3533. Average thickness of the optimized dense MMM was 116 ± 8 µm. Such MMM showed CO2 permeability and CO2/N2 selectivity of 312 ± 5 Barrer and 25.0 ± 0.5, respectively, 12% and 25% improved regarding the bare membrane. Additionally, optimum MMM was applied for CO2/CH4 separation and successfully compared in terms of improved CO2 permeability and CO2/CH4 selectivity., Grant PID2019-104009RB-I00 funded by MCIN/AEI/10.13039/501100011033 is gratefully acknowledged (Agencia Estatal de Investigación (AEI) and Ministerio de Ciencia e Innovación (MCIN), Spain). Grant T43-20R financed by the Aragón Government is gratefully acknowledged. The authors would like to acknowledge the use of Servicio General de Apoyo a la Investigación (SAI) and the use of instrumentation as well as the technical advice provided by the National Facility ELECMI ICTS, node "Laboratorio de Microscopias Avanzadas" at the University of Zaragoza.
Published: 2022
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20. A robust eco-compatible microporous iron coordination polymer for CO2 capture

Author: Marvin Benzaqui, Mohammad Wahiduzzaman, Heng Zhao, Md Rafiul Hasan, Timothy Steenhaut, Ali Saad, Jérôme Marrot, Périne Normand, Jean-Marc Grenèche, Nicolas Heymans, Guy De Weireld, Antoine Tissot, William Shepard, Yaroslav Filinchuk, Sophie Hermans, Florent Carn, Magdalena Manlankowska, Carlos Téllez, Joaquín Coronas, Guillaume Maurin, Nathalie Steunou, Christian Serre, UCL - SST/IMCN/MOST - Molecular Chemistry, Materials and Catalysis, and European Commission
Subjects: Sustainability and the Environment, Renewable Energy, Sustainability and the Environment, General Materials Science, Renewable Energy, General Chemistry
Abstract: Iron(III) carboxylate based metal organic frameworks (MOFs)/porous coordination polymers (PCPs) have sparked great interest owing to their high structural diversity and tunable porosity, excellent stability, tailored functionality and their scalability as well as green synthesis associated with their biocompatible and biodegradable character. Herein, we present a new robust Fe(III) based PCP (labelled MIL-178(Fe)) built up from chains of corner sharing Fe octahedra interconnected by 1,2,4-benzene tricarboxylic acid, delimiting one dimensional narrow pore channels (pore diameter < 4.5 Å) decorated with polar groups (μ2-OH and –CO2H functions). These structural and chemical features are suitable for the selective adsorption of CO2. MIL-178(Fe) was synthesized following a simple and green protocol in water under near ambient conditions using non-toxic reactants, allowing the production of sub-micrometer sized MIL-178(Fe) particles in a large amount (30 g). As shown by single-gas isotherms and CO2/N2 co-adsorption experiments as well as molecular simulations, this material exhibits a moderate CO2 capacity at low pressure but a high CO2/N2 selectivity. This is fully consistent with the presence of μ2-OH groups acting as CO2 adsorption sites, as revealed from both molecular simulations and in situ PXRD experiments. Finally, the good compatibility of this MOF with the elastomer block copolymer Pebax®-3533 allowed the processing of homogeneous and defect-free mixed matrix membranes with a MIL-178(Fe) loading of up to 25 wt% that outperformed pure Pebax®-3533 membranes for CO2/N2 separation., We acknowledge the European Community Seventh Framework Program (FP7/2007-2013) for funding the research presented in this article under Grant Agreement No. 608490 (Project M4CO2). The computational work was performed using HPC resources from GENCI-CINES (Grant A0100907613).
Published: 2022

21. Phase B and breadboard results of the Ka-band altimeter for future microsatellite altimetry missions.

Author: Eric Caubet, Nathalie Steunou, M. Meerman, Eric Thouvenot, and Patrick Vincent
Published: 2003
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22. Robust ionic liquid@MOF composite as a versatile superprotonic conductor

Author: Effrosyni Gkaniatsou, Carine Livage, Kiran Taksande, Nathalie Steunou, Sabine Devautour-Vinot, Guillaume Maurin, Corine Simonnet-Jégat, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and ANR-11-LABX-0039,CHARMMMAT,CHimie des ARchitectures MoléculairesMultifonctionnelles et des MATériaux(2011)
Subjects: Materials science, Composite number, Proton exchange membrane fuel cell, 02 engineering and technology, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Chemical engineering, chemistry, Ionic liquid, Anhydrous, [CHIM]Chemical Sciences, Chemical stability, 0210 nano-technology, Mesoporous material, Proton conductor
Abstract: International audience; A highly performing proton conducting composite was prepared through the impregnation of EMIMCl ionic liquid in the mesoporous MIL-101(Cr)–SO3H MOF. The resulting EMIMCl@MIL-101(Cr)–SO3H composite displays high thermal and chemical stability, alongside retention of a high amount of EMIMCl even at temperatures as high as 500 K, as well as under moisture conditions. Remarkably, this composite exhibits outstanding proton conductivity not only at the anhydrous state (σ473 K = 1.5 × 10−3 S cm−S) but also under humidity (σ(343 K/60%–80%RH) ≥ 0.10 S cm−1) conditions. This makes EMIMCl@MIL-101(Cr)–SO3H a unique candidate to act as a solid state proton conductor for PEMFC applications under versatile conditions.
Published: 2021
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23. Characterizing Rain Cells as Measured by a Ka-Band Nadir Radar Altimeter: First Results and Impact on Future Altimetry Missions

Author: Nathalie Steunou, Nicolas Picot, Gérald Dibarboure, and Bruno Picard
Subjects: Attenuation, Science, Microwave radiometer, atmospheric attenuation, rain cells, atmospheric_science, law.invention, Gulf Stream, Atmosphere, Ka-band, Radar altimeter, law, altimetry, Nadir, General Earth and Planetary Sciences, Environmental science, Ka band, Altimeter, Remote sensing, microwave radar
Abstract: The SARAL/AltiKa mission and its Ka-band nadir altimeter offers a unique opportunity to assess the impact of large atmospheric attenuation onto the radar altimeter. The use of Ka-band for the radar altimeter allows a reduction of the spatial resolution from about 15 km with the historical Ku-band instruments to about 4 km. But it also comes with a larger sensitivity to the atmospheric attenuation, especially under rainy conditions. As the radiometers on-board altimetry mission have a coarser spatial resolution (12 km for MWR on board SARAL/AltiKa), a new approach is proposed here, based on the 40 Hz sigma naught (one point every 175 m), to characterize the impact of rain cells onto the measurements and anticipate the availability of the observations performed by future two-dimensional swath Ka-band altimeters. The present study uses for the first time directly the timeseries of the Ka-band altimeter backscattering coefficient when previous studies relied on microwave radiometer (MWR) observations or model analyses with coarser resolutions. The Attenuation CElls Characterization ALgorithm (ACECAL) approach combines low-filtering and non-linear fit to retrieve the amplitude of the atmospheric attenuation at Ka-band, the size and the occurrences of rain cells. It not only provides more representative statistics on rain cells (occurrences, amplitude, size), but also describes the internal structure of the cells. At global scale and for a nadir instrument, the number of observations strongly impacted by the atmospheric attenuation is limited, with a proportion of observations belonging to rain cells lying between 5% and 10%. Concerning the atmospheric attenuation within the rain cells, the previous studies relied on radiometer observations or model analyses and thus under-estimated the actual amplitude of the atmospheric attenuation caused by rain by a factor four: the global median attenuation under-rainy situation is about 3.5 dB and 10% of the attenuations are larger than 13 dB. One originality of the method presented here is also to provide robust statistics on the rain cells diameter, their occurrences and geographical distribution. The median is 15 km, 10% of the rain cells have a size larger than 41 km, and the size are also larger at higher latitudes than over the tropics. This work also demonstrates the capability of Ka-band radar altimeter to provide observations strongly consistent to the measurements provided by missions dedicated to the precipitations, as the precipitation radar on-board the TRMM mission. The retrieval of rain rate and rain cell size but also the characterization of the internal peaks, if they are distributed as secondary products of altimetry missions would certainly benefit to the community, especially if the approach can be generalized to the future two-dimensional swath altimetry missions.
Published: 2021

24. ALTIKA3: a high-resolution ocean topography mission.

Author: Patrick Vincent, Eric Thouvenot, Nathalie Steunou, Jacques Verron, P. Bahurel, Christian Le Provost, Pierre-Yves Le Traon, Eric Caubet, and Laurent Phalippou
Published: 2002
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25. Poseidon 2 radar altimeter design and in flight preliminary performances.

Author: Guy Carayon, Nathalie Steunou, J.-L. Courriere, and Pierre Thibaut
Published: 2002
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26. Metal–Organic Framework Based 1D Nanostructures and Their Superstructures: Synthesis, Microstructure, and Properties

Author: Subharanjan Biswas, Clémence Sicard, Eddy Dumas, Nicolas Menguy, Ali Saad, Effrosyni Gkaniatsou, Nathalie Steunou, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), and Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nanostructure, Materials science, General Chemical Engineering, Metal organic frameworks, Nanotechnology, 02 engineering and technology, General Chemistry, Superstructures, 010402 general chemistry, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, 0104 chemical sciences, Nanostructures, Materials Chemistry, Genetics, [CHIM]Chemical Sciences, Metal-organic framework, 0210 nano-technology, Crystallization
Abstract: International audience; Owing to their high and tunable porosity as well as great chemical diversity, metal–organic frameworks (MOFs) have shown great promise over the past 20 years for a wide range of applications, including gas storage/separation, catalysis, and biomedicine. To date, MOF nanoparticles (NPs) have mostly been obtained as polycrystalline powders or spherical nanocrystals while anisotropic MOFs nanocrystals have been less explored and are of interest in the fields of catalysis, sensing, and electronics. One of the main challenges for the practical application of MOFs is thus to control the crystal size, morphology, and multiscale porosity of these materials while developing adequate shaping strategies. In this review, we cover recent advances in the different synthetic strategies of one-dimensional (1D) MOF nanocrystals as well as hierarchical porous superstructures based on tubular MOFs. We describe the architectures based on MOFs nanotubes (NTs), nanowires (NWs), and nanorods (NRs). Our discussion is focused on the synthetic approaches that drive the structure, crystallinity, size, and morphology of these hierarchical porous hybrid materials. Finally, their potential for different applications is presented.
Published: 2021
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27. Enhancing microperoxidase activity and selectivity: immobilization in metal-organic frameworks

Author: Nathalie Steunou, Christian Serre, Rémy Ricoux, Effrosyni Gkaniatsou, Clémence Sicard, Jean-Pierre Mahy, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), UMR 8124 Laboratoire de Chimie Bioorganique et Bioinorganique, Université Paris Sud (Paris 11), Chimie bio-organique et bio-inorganique (CBOBI), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Cytochrome, biology, 010405 organic chemistry, Chemistry, Proteolytic enzymes, General Chemistry, 010402 general chemistry, 01 natural sciences, Combinatorial chemistry, 0104 chemical sciences, 13. Climate action, Biocatalysis, biology.protein, [CHIM]Chemical Sciences, Metal-organic framework, Selectivity, ComputingMilieux_MISCELLANEOUS
Abstract: Microperoxidases 8 (MP8) and 11 (MP11) are heme-containing peptides obtained by the proteolytic digestion of Cytochrome c. They act as mini-enzymes that combine both peroxidase-like and Cytochrome P450-like activities that may be useful in the synthesis of fine chemicals or in the degradation of environmental pollutants. However, their use is limited by their instability in solution due to (i) the bleaching of the heme in the presence of an excess of H2O2, (ii) the decoordination of the distal histidine ligand of the iron under acidic conditions and, (iii) their tendency to aggregate in aqueous alkaline solutions, even at low concentrations. Additionally, both MP8 and MP11 show relatively low selectivity, due to the lack of control of the substrates by a specific catalytic pocket on the distal face of the heme. Both stability and selectivity issues can be effectively addressed by immobilization of microperoxidases in solid matrices, which can also lead to their possible recycling from the reaction medium. Considering their relatively small size, the pore inclusion of MPs into Metal-Organic Frameworks appeared to be more adequate compared to other immobilization methods that have been widely investigated for decades. The present minireview describes the catalytic activities of MP8 and MP11, their limitations, and various results describing their immobilization into MOFs which led to MP11- or MP8@MOF hybrid materials that display good activity in the oxidation of dyes and phenol derivatives, with remarkable recyclability due to the stabilization of the MPs inside the MOF cavities. An example of selective oxidation of dyes according to their charge by MP8@MOF hybrid materials is also highlighted.
Published: 2019
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28. Covalent and Selective Grafting of Polyethylene Glycol Brushes at the Surface of ZIF-8 for the Processing of Membranes for Pervaporation

Author: Thomas Berthelot, Elena Bellido, Florent Carn, Patricia Horcajada, Rocio Semino, Nicolas Menguy, Maria E. Dmitrenko, Guillaume Maurin, Denis Roizard, Sérgio R. Tavares, Marvin Benzaqui, Christian Serre, Nathalie Steunou, Anastasia V. Penkova, Mónica Giménez-Marqués, Anna I. Kuzminova, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energía, Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN UMR 3685), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service de Physique et de Chimie des Surfaces et Interfaces (SPCSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Saint Petersburg University (SPBU), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0035,Nano-Saclay,Paris-Saclay multidisciplinary Nano-Lab(2010), European Project: 608490,EC:FP7:ENERGY,FP7-ENERGY-2013-1,M4CO2(2014), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC (UMR_7057)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP UMR8004 FRE2000), École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris)-ESPCI ParisTech-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Instituto IMDEA Energy, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and ANR: NanoSaclay,ANR-10-LABX-0035
Subjects: Vinyl alcohol, Materials science, Poly(vinyl alcohol), General Chemical Engineering, Nanoparticle, 02 engineering and technology, Polyethylene glycol, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, Pervaporation, Surface modification, Dynamic light scattering, Environmental Chemistry, Membranes, Renewable Energy, Sustainability and the Environment, technology, industry, and agriculture, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, 021001 nanoscience & nanotechnology, MOFs, 0104 chemical sciences, Membrane, chemistry, Chemical engineering, Membranes, MOFs, Pervaporation, Poly(vinyl alcohol), Surface modification, 0210 nano-technology, Zeolitic imidazolate framework
Abstract: International audience; The so-called Graftfast reaction in water and at room temperature (RT) was applied to graft polyethylene glycol (PEG) at the surface of the microporous zeolitic imidazolate framework ZIF-8 nanoparticles (NPs) using acrylPEG of different chain lengths (480 Da and 5 kDa). In comparison to non-modified ZIF-8 NPs, both chemical and colloidal stabilities of PEGylated ZIF-8 NPs are significantly enhanced in water. A series of colloidal complex fluids by mixing PEG grafted ZIF-8 (i. e. PEG-g-ZIF-8) NPs with different amounts of polyvinylalcohol (PVA) was prepared and characterized by advanced characterization tools such as dynamic light scattering (DLS) and small-angle X-ray scattering (SAXS) thereby showing their long-term colloidal stability. Finally, dense and supported mixed matrix membranes were cast from PEG-g-ZIF-8/PVA solutions and have shown high performance in isopropanol (IPA) dehydration by pervaporation. The permeation flux of the supported MMM (i. e. 0.091 kg/(m$^2$h) is eleven times higher than that of the pure PVA membrane and these MMMs present a high separation factor (i. e. 7326). These transport properties are presumably due to the molecular sieving effects induced by ZIF-8 and the good interfacial properties of the membrane. The computational exploration of the ZIF-8/PVA and PEG/PVA interfaces provides a microscopic scale explanation for the enhanced compatibility of PVA with the PEGylated MOF when compared to that for the composite based on the bare ZIF-8 as a filler.
Published: 2019
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29. Enhancing microperoxidase activity and selectivity: immobilization in metal-organic frameworks

Author: Effrosyni Gkaniatsou, Christian Serre, Jean-Pierre Mahy, Nathalie Steunou, Rémy Ricoux, and Clémence Sicard
Published: 2021
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30. First example of biopolymer-polyoxometalate complex coacervation in gelatin- mixtures

Author: Florent, Carn, Nathalie, Steunou, Madeleine, Djabourov, Thibaud, Coradin, François, Ribot, and Jacques, Livage
Abstract: The first example of complex coacervation between a biopolymer and polyoxometalate clusters is identified in the gelatin-decavanadate system.
Published: 2020

31. Design of stable mixed-metal MIL-101(Cr/Fe) materials with enhanced catalytic activity for the Prins reaction

Author: Sergio Navalón, Mercedes Alvaro, Andrea Santiago-Portillo, Jean-Marc Greneche, Effrosyni Gkaniatsou, Christian Serre, Nathalie Steunou, Clémence Sicard, Mónica Giménez-Marqués, Cristina Vallés-García, Hermenegildo Garcia, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat Valenciana, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Instituto de Tecnología Química (ITQ), Universitat Politècnica de València (UPV)-Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP UMR8004 FRE2000), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris)
Subjects: Crystal structure, 010402 general chemistry, 01 natural sciences, Hydrothermal circulation, Ion, Catalysis, QUIMICA ORGANICA, QUIMICA ANALITICA, [CHIM]Chemical Sciences, General Materials Science, Lewis acids and bases, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], Materials, ComputingMilieux_MISCELLANEOUS, Mossbauer spectrometry, [PHYS]Physics [physics], 010405 organic chemistry, Renewable Energy, Sustainability and the Environment, Chemistry, General Chemistry, Prins reaction, 0104 chemical sciences, Chemical stability, Química orgànica, Nuclear chemistry
Abstract: [EN] This work highlights the benefit of designing mixed-metal (Cr/Fe) MOFs for enhanced chemical stability and catalytic activity. A robust and stable mixed-metal MIL-101(Cr/Fe) was prepared through a HF-free direct hydrothermal route with Fe(3+)content up to 21 wt%. The incorporation of Fe(3+)cations in the crystal structure was confirmed by(57)Fe Mossbauer spectrometry. The catalytic performance of the mixed metal MIL-101(Cr/Fe) was evaluated in the Prins reaction. MIL-101(Cr/Fe) exhibited a higher catalytic activity compared to MIL-101(Cr), improved chemical stability compared to MIL-101(Fe) and a higher catalytic activity for bulky substrates compared to MIL-100(Fe).In situinfra-red spectroscopy study suggests that the incorporation of Fe(3+)ions in MIL-101 structure leads to an increase in Lewis acid sites. It was thus concluded that the predominant role of Cr(3+)ions was to maintain the crystal structure, while Fe(3+)ions enhanced the catalytic activity., Financial support by the Spanish Ministry of Economy and Competitiveness (Severo Ochoa, CTQ2018-890237-CO2-R1 and Maria de Maeztu, CEX2019-000919-M), is gratefully acknowledged. Generalidad Valenciana is also thanked for funding (Prometeo 2017/083). S. N. thanks financial support by the Ministerio de Ciencia, Innovacion y Universidades (RTI 2018-099482-A-I00 project), Fundacion Ramon Areces (XVIII Concurso Nacional para la Adjudicacion de Ayudas a la Investigacion en Ciencias de la Vida y de la Materia, 2016), and Generalitat Valenciana grupos de investigacion consolidables 2019 (ref: AICO/2019/214) project. E. G. thanks the ANR-11-LABEX-0039 (LabEx CHARM3AT) for financial support. M. G.-M thanks support from "la Caixa" Foundation (LCF/BQ/PI19/11690022) and Generalitat Valenciana (SEJI/2020/036).
Published: 2020
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32. Encapsulation of Microperoxidase-8 in MIL-101(Cr)-X Nanoparticles: Influence of Metal-Organic Framework Functionalization on Enzymatic Immobilization and Catalytic Activity

Author: Christian Serre, Kalani Kariyawasam, Jean-Pierre Mahy, Nathalie Steunou, Effrosyni Gkaniatsou, Samanta Salas, Clémence Sicard, I. Stenger, Benhui Fan, Narjes Ayoub, Rémy Ricoux, Gilles Patriarche, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Groupe d'Etude de la Matière Condensée (GEMAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), LabEx ASLAN, and This work was supported by the ANR-11-LABEX-0039 (LabEx charm 3 at).
Subjects: Immobilized enzyme, biocatalysis, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Catalysis, chemistry.chemical_compound, [CHIM]Chemical Sciences, General Materials Science, metal-organic frameworks, ComputingMilieux_MISCELLANEOUS, enzyme immobilization, Thioanisole, peroxidase activity, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, 021001 nanoscience & nanotechnology, 0104 chemical sciences, enzyme, Monomer, chemistry, Biocatalysis, immobilization, Surface modification, functionalization, Metal-organic framework, 0210 nano-technology, Nuclear chemistry
Abstract: International audience; Microperoxidase 8 (MP8) was immobilized within MIL-101(Cr) bearing terephthalate linkers with functionalized groups (-NH2 and -SO3H). A synthesis protocol for MIL-101(Cr)-SO3H that avoids the use of toxic Cr(VI) and HF was developed. The electrostatic interactions between the MP8 molecules and the MOF matrices were found to be crucial for a successful immobilization. Raman spectroscopy revealed the dispersion of the immobilized MP8 molecules in MIL-101(Cr)-X matrices as monomers without aggregation. The presence of functional groups resulted in higher amounts of immobilized MP8 in comparison to the bare MIL-101(Cr). The catalytic activity of MP8@MIL-101(Cr)-NH2 per material mass was higher than that for MP8@MIL-101(Cr). The presence of free amino groups can thus improve the immobilization efficiency, leading to a higher amount of catalytically active species and improving the subsequent catalytic activity of the heterogeneous biocatalysts. MP8@MIL(Cr)-X also successfully catalyzed the selective oxidation of thioanisole derivatives into sulfoxides.
Published: 2020
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33. Contributors

Author: Abbas Afkhami, Mazaher Ahmadi, Filipe A. Almeida Paz, Christos Argirusis, Jéssica S. Barbosa, Sajid Bashir, Susana S. Braga, Siddhardha Busi, Sergio Carrasco, Sai Raghuveer Chava, Wei Chen, Ioanna Christodoulou, Liping Du, Eddy Dumas, Flávio Figueira, Ross S. Forgan, Kranthi Kumar Gangu, Arash Ghoorchian, Ruxandra Gref, Yuan Hu, null Ihsanullah, Sreekantha B. Jonnalagadda, Houman Kazemzadeh, Xue Li, Gang Liu, Jianqiang Liu, Jingbo Liu, Tayyebeh Madrakian, Panagiota Markopoulou, Ricardo F. Mendes, Masoud Mozafari, Hafezeh Nabipour, Shamraja S. Nadar, Majid Nasrollahi, Surya M. Nauli, Rajasekharreddy Pala, Srinath Palakurthi, Ying Pan, Subhaswaraj Pattnaik, Jingwen Qiu, Virendra K. Rathod, João Rocha, Sumanta Kumar Sahu, Muhammad Sajid, Arpita Samui, Alexander Schoedel, Christian Serre, Georgia Sourkouni, Nathalie Steunou, Shunsuke Tanaka, Leena B. Vaidya, Christos Vaitsis, Negin Valizadeh, Antonio Vargas-Berenguel, Chunsheng Wu, Daqiang Yuan, Yun Zeng, and Heng Zhao
Published: 2020
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34. Further improvement of the synthesis of silica gel and CaCl2 composites: Enhancement of energy storage density and stability over cycles for solar heat storage coupled with space heating applications

Author: Pierre D'Ans, Marc Degrez, Emilie Courbon, Oleksandr Skrylnyk, Marc Frère, Nathalie Steunou, and Anastasia Permyakova
Subjects: Packed bed, Materials science, Renewable Energy, Sustainability and the Environment, Silica gel, 020209 energy, Vapour pressure of water, Composite number, 02 engineering and technology, Thermal energy storage, Energy storage, chemistry.chemical_compound, Adsorption, chemistry, Desorption, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Composite material
Abstract: Composite materials based on a silica gel loaded with CaCl 2 are of great interest for seasonal thermochemical heat storage. In order to improve the performance of these materials for this application, and to evaluate their multi-cycle stability, a new synthesis protocol is proposed, based on successive impregnation/drying steps by using a matrix with a broad pore size distribution. Through this method, a CaCl 2 content of 43 wt%, a high cycle loading lift of 0.40 g/g and an unprecedented energy storage density for this type of material of 211 kW h/m 3 of packed bed composite, in conditions of a solar heat storage system (adsorption at 30 °C, desorption at 80 °C, and water vapor pressure of 12.5 mbar) can be reached. Moreover, the distribution of the salt inside the pores and the absence of any salt crust outside the matrix prevent salt leakage, leading to an outstanding preservation of the cycle loading lift after 10 cycles. Based on Polanyi theory, it can be assumed that the energy storage density can exceed 350 kW h/m 3 for water sorption at 20 °C, desorption at 80 °C, with both steps at a water vapor pressure of 12.5 mbar.
Published: 2017
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35. A new composite sorbent based on SrBr2 and silica gel for solar energy storage application with high energy storage density and stability

Author: Marc Degrez, Emilie Courbon, Nathalie Steunou, Marc Frère, Pierre D'Ans, Anastasia Permyakova, and Oleksandr Skrylnyk
Subjects: Sorbent, Materials science, Chromatography, business.industry, Silica gel, 020209 energy, Mechanical Engineering, Composite number, Sorption, 02 engineering and technology, Building and Construction, Management, Monitoring, Policy and Law, 021001 nanoscience & nanotechnology, Thermal energy storage, Energy storage, chemistry.chemical_compound, General Energy, chemistry, Chemical engineering, Desorption, 0202 electrical engineering, electronic engineering, information engineering, 0210 nano-technology, business, Thermal energy
Abstract: The excellent matching between the sorption and desorption temperatures of hexahydrated SrBr2 and those required for solar heat storage for building applications, the high heat of reaction (67.5 kJ/mol of water) coupled with the gain/loss of 5 mol of water per mole of salt make this salt an appealing sorbent for solar thermal energy storage applications coupled to space heating. Due to the morphological instability of this salt, it is necessary to incorporate it in a porous matrix as a composite sorbent. A new composite material for thermochemical energy storage applications was developed. It consists of a mesoporous silica gel impregnated by strontium bromide with salt content equal to 58 wt.%. The structure and the sorption properties of the composite were characterized by SEM-EDX, temperature dependent XRD, XRF, and N2 sorption measurements. The salt is homogeneously distributed inside the pores of the silica gel. Water sorption isotherms were measured between 20 °C and 80 °C, which enabled us to understand the sorption mechanism. A mathematical model was developed and used to fit the experimental data in order to predict the sorption behavior of the composite at different conditions (influence of temperature and pressure conditions on the cycle loading lift and energy storage density). The interest of using such a composite for thermal energy storage application is then discussed (thermal energy produced by solar collector and used for space heating). A high cycle loading lift of 0.22 g/g is obtained corresponding to an energy storage capacity of 230 W h/kg and an energy storage density of 203 kW h/m3 of packed bed composite (between 30 °C and 80 °C at 12.5 mbar) is reported, with an excellent stability over 14 sorption/desorption cycles. The sorption kinetics of this composite is enhanced compared to pure salt. Test on a laboratory scale open type reactor gives a maximum specific thermal power of 200 W/kg and a mean specific thermal power of 92 W/kg at 30 °C and 12.5 mbar for an extent of reaction of 0.68.
Published: 2017
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36. Titanium coordination compounds: from discrete metal complexes to metal–organic frameworks

Author: Thomas Devic, Christian Serre, Georges Mouchaham, Hala Assi, Nathalie Steunou, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de chimie de coordination (LCC), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: chemistry.chemical_classification, Materials science, Porous Coordination Polymers, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Coordination complex, Metal, chemistry, visual_art, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], visual_art.visual_art_medium, Photocatalysis, Metal-organic framework, Reactivity (chemistry), 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Titanium
Abstract: Owing to their promise in photocatalysis and optoelectronics, titanium based metal-organic frameworks (MOFs) are one of the most appealing classes of MOFs reported to date. Nevertheless, Ti-MOFs are still very scarce because of their challenging synthesis associated with a poor degree of control of their chemistry and crystallization. This review aims at giving an overview of the recent progress in this field focusing on the most relevant existing titanium coordination compounds as well as their promising photoredox properties. Not only Ti-MOFs but also Ti-oxo-clusters will be discussed and particular interest will be dedicated to highlight the different successful synthetic strategies allowing to overcome the still "unpredictable" reactivity of titanium ions, particularly to afford crystalline porous coordination polymers.
Published: 2017
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37. Metal–organic frameworks: a novel host platform for enzymatic catalysis and detection

Author: Christian Serre, Jean-Pierre Mahy, Nathalie Steunou, Effrosyni Gkaniatsou, Rémy Ricoux, and Clémence Sicard
Subjects: Materials science, Process Chemistry and Technology, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Enzyme catalysis, Mechanics of Materials, General Materials Science, Metal-organic framework, Electrical and Electronic Engineering, 0210 nano-technology, Host (network)
Abstract: The use of metal–organic frameworks (MOFs) as immobilization matrices for enzymes as a platform for emerging applications is reported. In addition to an overview of strategies developed to prepare enzyme–MOF biocomposites, the features that render MOFs interesting matrices for bio-immobilization are highlighted along with their potential benefits beyond a solid-state support in the design of innovative biocomposites.
Published: 2017
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38. A new strontium bromide MOF composite with improved performance for solar energy storage application

Author: Christian Serre, Pierre D'Ans, Nathalie Steunou, Anastasia Permyakova, Emilie Courbon, Farid Nouar, Flavien Bourdreux, Loïc Malet, Marc Frère, Corine Simonnet-Jégat, Université libre de Bruxelles (ULB), University of Mons [Belgium] (UMONS), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), and Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Materials science, Renewable Energy, Sustainability and the Environment, 020209 energy, Composite number, Energy Engineering and Power Technology, 02 engineering and technology, Partial pressure, 021001 nanoscience & nanotechnology, Thermal energy storage, 7. Clean energy, chemistry.chemical_compound, Chemical engineering, chemistry, Volume (thermodynamics), 13. Climate action, 0202 electrical engineering, electronic engineering, information engineering, Strontium bromide, [CHIM]Chemical Sciences, Electrical and Electronic Engineering, 0210 nano-technology, Mesoporous material, Porosity, Water vapor, ComputingMilieux_MISCELLANEOUS
Abstract: Seasonal heat storage technologies are the key for a widespread use of solar thermal energy in residential applications. This can be achieved using hygroscopic salts encapsulated in a porous matrix with a high pore volume. Using strontium bromide encapsulated in the mesoporous MIL-101(Cr) Metal-Organic Framework, a heat storage density of 233 kW h/m³ could be achieved, by using water vapor at a partial pressure as low as 1.25 kPa. This excellent result is partly due to the high salt content (63 wt. %), but also to unexpected modifications of the water sorption isotherms of SrBr2 once it is encapsulated. At a temperature of 30 °C, ideal for space heating in low energy dwellings, it may be suggested that the salt is partially soluble upon water sorption.
Published: 2019
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39. Metal-organic frameworks for the capture of volatile organic compounds and toxic chemicals

Author: Christian Serre, Bertrand Lavédrine, Kevin Dedecker, Nathalie Steunou, and Eddy Dumas
Subjects: Human health, Adsorption, Chemistry, Environmental chemistry, Air pollution, medicine, Metal-organic framework, Toxic gas, medicine.disease_cause, Air quality index
Abstract: Air quality is a major worldwide concern because of its impact on human health and the environment. Volatile organic compounds (VOC) and toxic chemicals emissions contribute strongly to the air pollution. This chapter summarizes recent progresses dealing with metal-organic frameworks (MOFs) and the capture of VOCs or toxic gases in a review of environmental applications. We mainly analyze the influence of MOFs physicochemical parameters over the efficiency and selectivity of the adsorption. This chapter is divided into two parts: capture of VOCs (hydrocarbons, alcohols, aldehydes, ketones, and carboxylic acids) and capture of toxic chemicals (SO 2 , H 2 S, CO, and NO).
Published: 2019
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40. List of Contributors

Author: Melih Baci, Moises A. Carreon, Wenmiao Chen, Kevin Dedecker, Aamod V. Desai, Eddy Dumas, Subhajit Dutta, Paolo Falcaro, Yu Fang, Omar K. Farha, Mingbao Feng, Sujit K. Ghosh, Ashlee J. Howarth, Angelo A. Kirchon, Susumu Kitagawa, Amrit Kumar, Subhajit Laha, Bertrand Lavédrine, Shengqian Ma, Zachary Lawrence Magnuson, Marek B. Majewski, Tapas Kumar Maji, Soumya Mukherjee, Raffaele Ricco, Syamantak Roy, Partha Samanta, Christian Serre, Shivani Sharma, Virender K. Sharma, Nathalie Steunou, Mark J. Styles, Qi Wang, Shuao Wang, Chengliang Xiao, Liqiu Yang, Michael J. Zaworotko, Peng Zhang, and Hong-Cai Zhou
Published: 2019
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41. Synthesis of the biocompatible and highly stable MIL-127(Fe): from large scale synthesis to particle size control

Author: Nathalie Steunou, Carine Livage, Thomas Devic, Christian Serre, Farid Nouar, Florence Ragon, Hubert Chevreau, Anastasia Permyakova, Alfonso Garcia-Marquez, Patricia Horcajada, and Paul Fabry
Subjects: Materials science, Nanotechnology, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Biocompatible material, 01 natural sciences, 0104 chemical sciences, Nano, General Materials Science, Particle size, 0210 nano-technology, Porosity, Microscale chemistry
Abstract: Controlled-sized crystals, from the nano to the microscale, of the biocompatible and highly stable porous iron(III) 3,3,′5,5′-azobenzenetetracarboxylate MIL-127(Fe) MOF have been successfully prepared with very high space-time-yields using different synthetic routes.
Published: 2016
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42. Influence of Filler Pore Structure and Polymer on the Performance of MOF-Based Mixed-Matrix Membranes for CO 2 Capture

Author: Paul A. Wright, Timothy Johnson, Xinlei Liu, Effrosyni Gkaniatsou, Marvin Benzaqui, Freek Kapteijn, Jorge Gascon, Angelica Orsi, Christian Serre, Nathalie Steunou, Magdalena M. Lozinska, Clémence Sicard, Anahid Sabetghadam, Catalysis Engineering - ChemE, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), EaStCHEM School of Chemistry, University of St Andrews [Scotland], Johnson Matthey Technology Centre, Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), European Commission, University of St Andrews. School of Chemistry, and University of St Andrews. EaSTCHEM
Subjects: Filler (packaging), Metal-organic framework, Polymers, NDAS, 02 engineering and technology, 010402 general chemistry, Thermal diffusivity, 01 natural sciences, Catalysis, [CHIM]Chemical Sciences, QD, Gas separation, Solubility, Porosity, chemistry.chemical_classification, Membranes, Chemistry, Organic Chemistry, General Chemistry, Polymer, Composite materials, Metal-organic frameworks, QD Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Membrane, Chemical engineering, Pore structure, 0210 nano-technology
Abstract: International audience; Membrane gas separation units are gaining increasing attention owing to their relatively low energy consumption, ease of operation and environmental aspects. Metal-organic framework (MOF)-mixed matrix membranes (MMMs) are proposed as alternative materials delivering both the promising performance benefits from embedded MOF fillers and the processing features of polymers. In order to gain insight into the influence of MOF filler and polymer on membrane performance, eight different composites are studied by combining four MOFs and two polymers. MOF materials (NH2-MIL-53(Al), MIL-69(Al), MIL-96(Al) and ZIF-94(Zn)) with various chemical functionalities, topologies, and dimensionalities of porosity were employed as fillers, while two typical polymers with different permeability-selectivity properties (6FDA-DAM and Pebax) were deliberately selected as matrices. Separation results are rationalized on the basis of thorough characterization of the main components of the composites. The observed differences in membrane performance in the separation of CO2 from N2 are explained on the basis of gas solubility, diffusivity properties and compatibility between the filler and polymer phases.
Published: 2018
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43. Metal-Organic Frameworks for Cultural Heritage Preservation: The Case of Acetic Acid Removal

Author: Christian Serre, Guillaume Maurin, João Pires, Farid Nouar, Eddy Dumas, Kevin Dedecker, Nathalie Steunou, Renjith S. Pillai, Moisés L. Pinto, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), and Universidade de Lisboa (ULISBOA)
Subjects: Materials science, Context (language use), 02 engineering and technology, 01 natural sciences, Acetic acid, chemistry.chemical_compound, symbols.namesake, Adsorption, 11. Sustainability, [CHIM]Chemical Sciences, General Materials Science, Volatile organic compound, metal-organic frameworks, hydrophobicity, chemistry.chemical_classification, 010405 organic chemistry, fungi, cultural heritage, 021001 nanoscience & nanotechnology, 0104 chemical sciences, acetic acid, chemistry, Chemical engineering, Selective adsorption, symbols, selective adsorption, Metal-organic framework, van der Waals force, 0210 nano-technology, Hybrid material
Abstract: International audience; The removal of low concentrations of acetic acid from indoor air at museums poses serious preservation problems that the current adsorbents cannot easily address owing to their poor affinity for acetic acid and/or their low adsorption selectivity versus water. In this context, a series of topical water-stable metal-organic frameworks (MOFs) with different pore sizes, topologies, hydrophobic characters, and functional groups was explored through a joint experimental-computational exploration. We demonstrate how a subtle combination of sufficient hydrophobicity and optimized host-guest interactions allows one to overcome the challenge of capturing traces of this very polar volatile organic compound in the presence of humidity. The optimal capture of acetic acid was accomplished with MOFs that do not show polar groups in the inorganic node or have lipophilic but polar (e.g., perfluoro) groups functionalized to the organic linkers, that is, the best candidates from the list of explored MOFs are MIL-140B and UiO-66-2CF3. These two MOFs present the appropriate pore size to favor a high degree of confinement, together with organic spacers that allow an enhancement of the van der Waals interactions with the acetic acid. We establish in this work that MOFs can be a viable solution to this highly challenging problem in cultural heritage protection, which is a new field of application for this type of hybrid materials.
Published: 2018
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44. Influence of Filler Pore Structure and Polymer on the Performance of MOF-Based Mixed-Matrix Membranes for CO

Author: Anahid, Sabetghadam, Xinlei, Liu, Marvin, Benzaqui, Effrosyni, Gkaniatsou, Angelica, Orsi, Magdalena M, Lozinska, Clemence, Sicard, Timothy, Johnson, Nathalie, Steunou, Paul A, Wright, Christian, Serre, Jorge, Gascon, and Freek, Kapteijn
Abstract: To gain insight into the influence of metal-organic framework (MOF) fillers and polymers on membrane performance, eight different composites were studied by combining four MOFs and two polymers. MOF materials (NH
Published: 2018

45. A promising metal–organic framework (MOF), MIL-96(Al), for CO 2 separation under humid conditions

Author: Philip L. Llewellyn, Nathalie Steunou, Renjith S. Pillai, Isabelle Beurroies, Guillaume Maurin, Virginie Benoit, Marvin Benzaqui, Christian Serre, Nicolas Chanut, Sabine Devautour-Vinot, Matériaux divisés, interfaces, réactivité, électrochimie (MADIREL), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS-PSL), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), and Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Renewable Energy, Sustainability and the Environment, Chemistry, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Co2 adsorption, 01 natural sciences, 0104 chemical sciences, Preferential adsorption, Adsorption, Chemical engineering, [CHIM]Chemical Sciences, General Materials Science, Metal-organic framework, Relative humidity, 0210 nano-technology, Bar (unit)
Abstract: International audience; The CO2 adsorption uptake and enthalpies with MIL-96(Al) were assessed in the presence of up to 40% relative humidity via both experiment and simulation. Interestingly at 10% relative humidity, the water equilibrated in the pores of this MOF proffers a significant increase in affinity for CO2 at 0.2 bar, which is associated with a limited decrease in capacity. This study suggests that at medium RH, water and CO2 are able to adsorb in different regions of the structure. Indeed, such behaviour is explained by the preferential adsorption of H2O in cavities containing more hydrophilic groups including Al(1)–H2Oterminal, Al(3′)–OHterminal and Al(3)–H2Oterminal while CO2 adsorbs in the remaining, less hydrophilic cavities containing μ2-OH groups. This highlights the interest of using materials with this variety in pore chemistry as one way forward for CO2 capture in the presence of contaminants such as water.
Published: 2018
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46. Validation of AltiKa Matching Pursuit Rain Flag

Author: B. Picard, Nathalie Steunou, Jean Tournadre, and Jean-Christophe Poisson
Subjects: 010504 meteorology & atmospheric sciences, Attenuation, 0211 other engineering and technologies, Phase (waves), 02 engineering and technology, Oceanography, 01 natural sciences, Matching pursuit, Signal, Geography, 13. Climate action, Waveform, Ka band, Altimeter, Sensitivity (electronics), 021101 geological & geomatics engineering, 0105 earth and related environmental sciences, Remote sensing
Abstract: The major drawback of Ka band, operating frequency of the AltiKa altimeter on board SARAL, is its sensitivity to atmospheric liquid water. Even light rain or heavy clouds can strongly attenuate the signal and distort the signal leading to erroneous geophysical parameters estimates. A good detection of the samples affected by atmospheric liquid water is crucial. As AltiKa operates at a single frequency, a new technique based on the detection by a Matching Pursuit algorithm of short scale variations of the slope of the echo waveform plateau has been developed and implemented prelaunch in the ground segment. As the parameterization of the detection algorithm was defined using Jason-1 data, the parameters were re-estimated during the cal-val phase, during which the algorithm was also updated. The measured sensor signal-to-noise ratio is significantly better than planned, the data loss due to attenuation by rain is significantly smaller than expected (
Published: 2015
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47. AltiKa Altimeter: Instrument Description and In Flight Performance

Author: Pierre Sengenes, Nathalie Steunou, J. D. Desjonquères, Jean-Christophe Poisson, Jocelyne Noubel, and Nicolas Picot
Subjects: Radiometer, Geography, Microwave radiometer, Bandwidth (signal processing), Antenna aperture, Ka band, Altimeter, Oceanography, Significant wave height, Decorrelation, Remote sensing
Abstract: On 25 February 2013, the SARAL satellite was launched from the Indian Sriharikota launch site. The key feature of the altimetric payload has been the selection of Ka-band. Using Ka-band avoids the need for a second frequency to correct for the ionosphere delay and eases the sharing of the antenna by the altimeter and the radiometer. The use of the Ka-band also allows the improvement of the range measurement accuracy in a ratio close to 2 due to the use of a wider bandwidth and to a better pulse to pulse echo decorrelation. Eventually, Ka-band antenna aperture is reduced, which limits the pollution within useful ground footprint. A summary of the results obtained during the in-flight assessment phase is given. All the tracking modes have also been gone through. Eventually, a new high data rate mode, called “HD mode” is implemented on AltiKa and has been used. The performance assessment is excellent: the range measurement accuracy is close to 1 cm for 1s averaging and the Significant Wave Height (SWH) noise...
Published: 2015
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48. Rational design of one-dimensional vanadium(<scp>v</scp>) oxide nanocrystals: an insight into the physico-chemical parameters controlling the crystal structure, morphology and size of particles

Author: Nathalie Steunou and Jacques Livage
Subjects: Materials science, Nanostructure, Vanadium(V) oxide, Oxide, Nucleation, Vanadium, chemistry.chemical_element, Nanotechnology, General Chemistry, Condensed Matter Physics, Vanadium oxide, law.invention, chemistry.chemical_compound, chemistry, law, General Materials Science, Nanorod, Crystallization
Abstract: In this highlight, we cover the recent advances on the different synthetic strategies in aqueous solution of one-dimensional vanadium(V) oxide nanocrystals including nanowires, nanotubes, nanorods, nanobelts and nanorings. We have focused mainly our attention on nanostructured materials based on V2O5, MxV2O5 (M = Li, Ag, Na), MV3O8 and M2V6O16 (M = Li, Na, NH4, K) phases that are currently investigated as cathodes for Li-ion batteries. Here, this article intends to provide a comprehensive review of the synthesis of vanadium oxide nanostructures by combining sol–gel chemistry and hydrothermal processes with the aim of mastering the nanostructure formation and elucidating the fundamental processes of crystallization. Therefore, our discussion has been mainly focused on the identification of the synthetic parameters that drive the structure, crystallinity, size and morphology of nanocrystals. In some cases, possible mechanisms for the nucleation and growth of vanadium oxide nanocrystals were proposed.
Published: 2015
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49. Revisiting the Aluminum Trimesate-based MOF (MIL-96): from Structure Determination to the Processing of Mixed Matrix Membranes for CO2 Capture

Author: Jérôme Marrot, Renjith S. Pillai, Guy De Weireld, Freek Kapteijn, David Montero, Konstantin Hadjiivanov, Florent Carn, Virginie Benoit, Nicolas Menguy, Marvin Benzaqui, Philip L. Llewellyn, Christian Serre, Guillaume Maurin, Nathalie Steunou, Isabelle Beurroies, Jorge Gascon, Périne Normand, Mihail Mihaylov, Clémence Sicard, Anahid Sabetghadam, Charlotte Martineau-Corcos, William Shepard, Antoine Tissot, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Yoplait, Institute of Microelectronics (NCSR), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Electronics Technology Department, Carlos III University of Madrid, Carlos III University of Madrid, Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Matériaux divisés, interfaces, réactivité, électrochimie (MADIREL), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Thermodynamics, FPMS, Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences (BAS), Institut des matériaux de Paris-Centre (IMPC), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Reactor and Catalysis Engineering, Delft University of Technology (TU Delft), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC), and Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Materials science, General Chemical Engineering, Analytical chemistry, Infrared spectroscopy, Nanoparticle, 02 engineering and technology, General Chemistry, Microporous material, Nuclear magnetic resonance spectroscopy, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Adsorption, Membrane, Chemical engineering, Materials Chemistry, Molecule, Density functional theory, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS
Abstract: A microporous Al trimesate-based metal-organic framework (MOF), denoted MIL-96-(Al), was selected as a porous hybrid filler for the processing of mixed matrix membranes (MMMs) for CO2/N2 postcombustion separation. First, the structural model of MIL-96-(Al) initially reported was revisited using a combination of synchrotron-based single-crystal X-ray diffraction, solid-state nuclear magnetic resonance spectroscopy, and density functional theory (DFT) calculations. In a second step, pure MIL-96-(Al) crystals differing by their size and aspect ratio, including anisotropic hexagonal platelets and nanoparticles of about 70 nm in diameter, were prepared. Then, a combination of in situ IR spectroscopy, single-gas, and CO2/N2 coadsorption experiments, calorimetry, and molecular simulations revealed that MIL-96-(Al) nanoparticles show a relatively high CO2 affinity over N2 owing to strong interactions between CO2 molecules and several adsorption sites such as Al3+ Lewis centers, coordinated water, and hydroxyl groups. Finally, the high compatibility between MIL-96-(Al) nanoparticles and the 6FDA-DAM polymer allowed the processing of homogeneous and defect-free MMMs with a high MOF loading (up to 25 wt %) that outperform pure polymer membranes for CO2/N2 separation.
Published: 2017
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50. Satellite Radar Altimetry

Author: Bruno Picard, Pierre Dubois, Flavien Mercier, Ngan Tran, Pierre Thibaut, Philippe Escudier, Gérald Dibarboure, Joël Dorandeu, Alain Mallet, Jacques Richard, Marie-Helene Rio, Alexandre Couhert, Laïba Amarouche, Loren Carrere, Nathalie Steunou, and Michael Ablain
Subjects: Ocean dynamics, Accuracy and precision, Space technology, law, Environmental science, Satellite, Spatial frequency, Altimeter, Radar, Signal, Remote sensing, law.invention
Abstract: Radar altimetry was, very early in the development of space technology, identified as a key technique to provide essential information on solid Earth and ocean dynamics. Satellite altimetry calculation results from the combination of two measurements. From a different perspective, "Satellite with Argos and AltiKa" is an innovative radar altimetry mission that utilizes a new Ka-band altimeter concept (AltiKa). The Geodynamic Experimental Ocean Satellite inherited radar technology from the Skylab and provided more accurate altimetric measurements. New altimetry techniques require short-term accuracy characteristics. The mission requirement is thus expressed using a spatial frequency spectrum. While on its path between the satellite and the Earth's surface, the radar signal is impacted by various geophysical phenomena that must be accounted to provide a precise range measurement. In order to reach the expected range measurement accuracy, the effects of the atmosphere on the propagation of the altimeter microwave radar pulse must be accounted for.
Published: 2017
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