Search

Your search keyword '"Christopher D. Windle"' showing total 11 results
Start Over Author "Christopher D. Windle" Topic 01 natural sciences
11 results on '"Christopher D. Windle"'

1. Tunable Covalent Triazine-Based Frameworks (CTF-0) for Visible-Light-Driven Hydrogen and Oxygen Generation from Water Splitting

Author

Srinivas Gadipelli, Xiaoyu Han, Dan Kong, Jijia Xie, Zhiming Bai, Junwang Tang, Zhengxiao Guo, Qiushi Ruan, Kai Shen, and Christopher D. Windle

Subjects
Materials science, visible-light-driven photocatalysis, Hydrogen, 010405 organic chemistry, Band gap, Oxygen evolution, chemistry.chemical_element, General Chemistry, 010402 general chemistry, Photochemistry, 01 natural sciences, Oxygen, water splitting, Catalysis, 0104 chemical sciences, oxygen evolution, hydrogen evolution, chemistry, covalent triazine-based frameworks, Photocatalysis, Water splitting, Quantum efficiency, Photocatalytic water splitting, Research Article
Abstract

Covalent triazine-based frameworks (CTFs), a group of semiconductive polymers, have been identified for photocatalytic water splitting recently. Their adjustable band gap and facile processing offer great potential for discovery and development. Here, we present a series of CTF-0 materials fabricated by two different approaches, a microwave-assisted synthesis and an ionothermal method, for water splitting driven by visible-light irradiation. The material (CTF-0-M2) synthesized by microwave technology shows a high photocatalytic activity for hydrogen evolution (up to 7010 μmol h-1 g-1), which is 7 times higher than another (CTF-0-I) prepared by conventional ionothermal trimerization under identical photocatalytic conditions. This leads to a high turnover number (TON) of 726 with respect to the platinum cocatalyst after seven cycles under visible light. We attribute this to the narrowed band gap, the most negative conduction band, and the rapid photogenerated charge separation and transfer. On the other hand, the material prepared by the ionothermal method is the most efficient one for oxygen evolution. CTF-0-I initially produces ca. 6 times greater volumes of oxygen gas than CTF-0-M2 under identical experimental conditions. CTF-0-I presents an apparent quantum efficiency (AQY) of 5.2% at 420 nm for oxygen production without any cocatalyst. The activity for water oxidation exceeds that of most reported CTFs due to a large driving force for oxidation and a large number of active sites. Our findings indicate that the band positions and the interlayer stacking structures of CTF-0 were modulated by varying synthesis conditions. These modulations impact the optical and redox properties, resulting in an enhanced performance for photocatalytic hydrogen and oxygen evolution, confirmed by first-principles calculations.

Published
2019

2. Ultra-small dispersed CuxO nanoparticles on graphene fibers for miniaturized electrochemical sensor applications

Author

Le Jiao, Xiaoteng Ding, Liwei Chen, Christopher D. Windle, Liangti Qu, Yuze Wang, Qing Han, and Jinfeng Zeng

Subjects
Materials science, business.product_category, Annealing (metallurgy), Graphene, General Chemical Engineering, Nanoparticle, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, Copper, 0104 chemical sciences, Electrochemical gas sensor, law.invention, chemistry, law, Electrode, Microfiber, 0210 nano-technology, business
Abstract

A graphene microfiber (GF) modified with ultrafine CuxO nanoparticles (CuxONPs/GF) has been fabricated by direct annealing of electrodeposited nano-sized copper-based metal organic frameworks (HKUST-1) and used as an electrode for nonenzymatic H2O2 sensing. Benefiting from the unique microfiber architecture and synergetic effects, as well as strong coupling between components with many active sites and boosted electron transport, the CuxONPs/GF electrode shows prominent sensitivity, selectivity and long-term operational stability for the detection of H2O2. Further work successfully applied this CuxONPs/GF electrode to detection of H2O2 in real samples such as milk and human serum. These results indicate that the CuxONPs/GF is a promising mini-sized sensor in electrochemical analysis.

Published
2019
Full Text
View/download PDF

3. A 3D-graphene fiber electrode embedded with nitrogen-rich-carbon-coated ZIF-67 for the ultrasensitive detection of adrenaline

Author

Qing Han, Xiaoteng Ding, Le Jiao, Ruoyu Xu, Jinfeng Zeng, Zhipan Zhang, Yuze Wang, Liwei Chen, Christopher D. Windle, and Liangti Qu

Subjects
Materials science, Epinephrine, Nitrogen, Biomedical Engineering, Metal Nanoparticles, Biosensing Techniques, 02 engineering and technology, Conductivity, 010402 general chemistry, Electrochemistry, Polypyrrole, 01 natural sciences, law.invention, chemistry.chemical_compound, law, Humans, General Materials Science, Fiber, Electrodes, Metal-Organic Frameworks, Mineral Fibers, Detection limit, Graphene, Hydrogen bond, business.industry, Electrochemical Techniques, General Chemistry, General Medicine, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, Electrode, Optoelectronics, Graphite, 0210 nano-technology, business
Abstract

A novel nitrogen-rich-carbon-coated ZIF-67 embedded three-dimensional-graphene (ZIF-67/NC/3DG) fiber was fabricated via a facile one-pot electrodeposition self-assembly method, and used as a prominent electrode for the non-enzymatic detection of adrenaline (Ad). In this design, the prepared ZIF-67 adsorbs Ad through hydrogen bonding and electrostatic interaction, while polypyrrole functions as the precursor of the conductive NC that seamlessly connects ZIF-67 with the 3DG fiber electrode to ameliorate the poor conductivity of the ZIF-67 moiety and thus improve the sensitivity of the ZIF-67/NC/3DG fiber electrode for detecting Ad. The constructed fiber sensor shows a double linear response over the Ad concentration range of 0.06-95 μM with a high sensitivity of 44.6 mA mM-1 cm-2 and 95.0-5900 μM with a good sensitivity of 11.0 mA mM-1 cm-2, giving a low detection limit of 0.02 μM and excellent repeatability. The ZIF-67/NC/3DG fiber electrode was further successfully applied for the determination of Ad in a real sample of human serum, indicating that this fiber electrode is a promising miniaturized sensor for electrochemical analysis.

Published
2019
Full Text
View/download PDF

4. A protocol for quantifying hydrogen evolution by dye-sensitized molecular photocathodes and its implementation for evaluating a new covalent architecture based on an optimized dye-catalyst dyad

Author

Murielle Chavarot-Kerlidou, Vincent Artero, Julien Massin, Christopher D. Windle, Laboratoire de Chimie et Biologie des Métaux ( LCBM - UMR 5249 ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Laboratoire de Chimie et Biologie des Métaux (LCBM - UMR 5249), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Aqueous solution, Materials science, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, [ CHIM ] Chemical Sciences, 01 natural sciences, Acceptor, Photocathode, 0104 chemical sciences, Catalysis, Inorganic Chemistry, chemistry.chemical_compound, chemistry, Electrode, Thiophene, [CHIM]Chemical Sciences, 0210 nano-technology, Faraday efficiency, Hydrogen production
Abstract

International audience; A protocol that combines gas chromatography and a high-sensitivity micro Clark-type electrode is described to quantify hydrogen production across gas and solution phases for systems operating at very low currents such as dye-sensitized H2-evolving photocathodes. Data indicate that a significant fraction of H2 remains in aqueous solution even after several hours of experiments. Using this protocol, re-evaluation of a dye-sensitized H2-evolving photocathode based on a dye-catalyst dyad showed a reproducible 66% increase of the faradaic efficiency compared with previously reported headspace GC measurements [Kaeffer et al., J. Am. Chem. Soc., 2016, 138, 12308-12311]. This dyad was based on an organic push-pull dye where donor and acceptor are separated by one thiophene group. Insertion of a second thiophene group between the donor and acceptor led to a more efficient system with 30% improved faradaic efficiency for H2 evolution.

Published
2018
Full Text
View/download PDF

5. Hierarchical ZnO@Hybrid Carbon Core-Shell Nanowire Array on a Graphene Fiber Microelectrode for Ultrasensitive Detection of 2,4,6-Trinitrotoluene

Author

Ruoyu Xu, Christopher D. Windle, Lili Qiu, Yuze Wang, Qing Han, Liwei Chen, Chongbei Wu, and Liangti Qu

Subjects
Materials science, business.industry, Graphene, Nanowire, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Nitrogen, Nanowire array, 0104 chemical sciences, law.invention, Microelectrode, chemistry, law, Optoelectronics, Trinitrotoluene, General Materials Science, Fiber, 0210 nano-technology, business, Carbon
Abstract

A hierarchical architecture composed of nitrogen (N)-rich carbon@graphitic carbon-coated ZnO nanowire arrays on a graphene fiber (ZnO@C/GF) was fabricated by direct growth of a ZnO@zeolitic imidazolate framework-8 (ZIF-8) core-shell nanowire array on a GF followed by annealing and used as a microelectrode for detection of 2,4,6-trinitrotoluene (TNT). In such a design, ZnO accumulated TNT through a strong nitroxide-zinc interaction and ZIF-8 served as the precursor of the N-rich carbon@graphitic carbon layer that seamlessly connected ZnO with the GF to improve the poor conductivity of ZnO, thus enhancing the sensitivity of the ZnO@C/GF microelectrode. The constructed hierarchical hybrid fiber microsensor exhibited a wide linear response to TNT in a concentration range of 0.1-32.2 μM with a low detection limit of 3.3 nM. This ZnO@C/GF microelectrode was further successfully applied to the detection of TNT in lake and tap water, indicating its promise as a portable sensor for the electrochemical detection of explosive compounds.

Published
2020

6. Earth-Abundant Molecular Z-Scheme Photoelectrochemical Cell for Overall Water-Splitting

Author

Masanobu Higashi, Sebastian Bold, Kazuhiko Maeda, Vincent Artero, Ryu Abe, Romain Brisse, Bruno Jousselme, Christopher D. Windle, Murielle Chavarot-Kerlidou, Osamu Ishitani, Hiromu Kumagai, Solar fuels, hydrogen and catalysis (SolHyCat ), Laboratoire de Chimie et Biologie des Métaux (LCBM - UMR 5249), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Department of Chemistry, School of Science, Tokyo Institute of Technology [Tokyo] (TITECH), Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN), 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-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), Abber Center of Photonics, Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany], Leibniz Institute of Photonic Technology Jena, Department Functional Interfaces, Albert-Einstein-Straße 9, 07745 Jena, Germany, Strategic International Collaborative Research Program (PhotoCAT project) from Japan Science and Technology Agency (JST), JSPS KAKENHI Grant Number 17H06439 in Scientific Research on Innovative Areas 'Innovations for Light-Energy Conversion (I4LEC), ANR-14-JTIC-0004,PhotoCAT,Molecular Photocathodes for CO2 reduction and H2 evolution(2014), ANR-11-LABX-0003,ARCANE,Grenoble, une chimie bio-motivée(2011), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN UMR 3685), 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), and 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)

Subjects
Photocurrent, Hydrogen, Chemistry, Energy conversion efficiency, Analytical chemistry, chemistry.chemical_element, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, Photoelectrochemical cell, 010402 general chemistry, 01 natural sciences, 7. Clean energy, Biochemistry, Catalysis, Photocathode, 0104 chemical sciences, Colloid and Surface Chemistry, Water splitting, Faraday efficiency, Visible spectrum
Abstract

International audience; A push-pull organic dye and a cobaloxime catalyst were successfully co-grafted on NiO and CuGaO$_2$ to form efficient molecular photocathodes for H$_2$ production with >80% Faradaic efficiency. CuGaO$_2$ is emerging as a more effective p-type semiconductor in photoelectrochemical cells and yields a photocathode with four-fold higher photocurrent densities and 400 mV more positive onset photocurrent potential compared to the one based on NiO. Such an optimized CuGaO$_2$ photocathode was combined with a TaONǀCoO$_x$ photoanode in a photoelectrochemical cell. Operated in this Z-scheme configuration, the two photoelectrodes produced H$_2$ and O$_2$ from water with 87% and 88% Faradaic efficiency, respectively, at pH 7 under visible light and in the absence of an applied bias, equating to a solar to hydrogen conversion efficiency of 5.4×10$^{−3}$%. This is, to the best of our knowledge, the highest efficiency reported so far for a molecular-based noble metal-free water splitting Z-scheme.

Published
2019
Full Text
View/download PDF

8. Insights into the mechanism and aging of a noble-metal free H2-evolving dye-sensitized photocathode

Author

Romain Brisse, Christopher D. Windle, Didier Léonard, Nicolas Kaeffer, Murielle Chavarot-Kerlidou, Vincent Artero, Corinne Gablin, Bruno Jousselme, Laboratoire de Chimie et Biologie des Métaux (LCBM - UMR 5249), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 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), Surfaces, Institut des Sciences Analytiques (ISA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ANR-14-JTIC-0004,PhotoCAT,Molecular Photocathodes for CO2 reduction and H2 evolution(2014), ANR-11-LABX-0003,ARCANE,Grenoble, une chimie bio-motivée(2011), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), 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), Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Non-blocking I/O, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, engineering.material, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, Photocathode, 3. Good health, 0104 chemical sciences, Catalysis, Secondary ion mass spectrometry, Electron transfer, Chemical engineering, Electrode, engineering, Noble metal, 0210 nano-technology
Abstract

International audience; Dye-sensitized photo-electrochemical cells (DS-PECs) form an emerging technology for the large-scale storage of solar energy in the form of (solar) fuels because of the low cost and ease of processing of their constitutive photoelectrode materials. Preparing such molecular photocathodes requires a well-controlled co-immobilization of molecular dyes and catalysts onto transparent semiconducting materials. Here we used a series of surface analysis techniques to describe the molecular assembly of a push-pull organic dye and a cobalt diimine-dioxime catalyst co-grafted on a p-type NiO electrode substrate. (Photo) electrochemical measurements allowed characterization of electron transfer processes within such an assembly and to demonstrate for the first time that a Co$^I$ species is formed as the entry into the light-driven H$_2$ evolution mechanism of a dye-sensitized photocathode. This co-grafted noble-metal free H$_2$-evolving photocathode architecture displays similar performances to its covalent dye-catalyst counterpart based on the same catalytic moiety. Post-operando time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis of these photoelectrodes after extensive photoelectrochemical operation suggested decomposition pathways of the dye and triazole linkage used to graft the catalyst onto NiO, providing grounds for the design of optimized molecular DS-PEC components with increased robustness upon turnover.

Published
2018
Full Text
View/download PDF

9. A noble metal-free photocatalytic system based on a novel cobalt tetrapyridyl catalyst for hydrogen production in fully aqueous medium

Author

Emmanouil Giannoudis, Murielle Chavarot-Kerlidou, Vincent Artero, Christopher D. Windle, Nicolas Queyriaux, Athanassios G. Coutsolelos, Sylvaine Roy, Jacques Pécaut, Laboratoire de Chimie et Biologie des Métaux (LCBM - UMR 5249), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Crete [Heraklion] (UOC), Chimie Interface Biologie pour l’Environnement, la Santé et la Toxicologie (CIBEST ), SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé (SYMMES), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), ANR-11-LABX-0003,ARCANE,Grenoble, une chimie bio-motivée(2011), European Project: 229927,EC:FP7:REGPOT,FP7-REGPOT-2008-1,BIOSOLENUTI(2009), European Project: 306398,EC:FP7:ERC,ERC-2012-StG_20111012,PHOTOCATH2ODE(2012), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Chimie du CNRS (INC)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Aqueous solution, 010405 organic chemistry, Renewable Energy, Sustainability and the Environment, Inorganic chemistry, Energy Engineering and Power Technology, chemistry.chemical_element, Electron donor, [CHIM.CATA]Chemical Sciences/Catalysis, [CHIM.MATE]Chemical Sciences/Material chemistry, engineering.material, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Catalysis, chemistry.chemical_compound, Fuel Technology, chemistry, engineering, Photocatalysis, Noble metal, Cobalt, Phosphine, Hydrogen production
Abstract

International audience; The new cobalt tetrapyridyl complex 1(BF4)(2) was characterized and assessed for hydrogen production in fully aqueous solution. Mechanistic information was gained thanks to a fast screening method, using chemical reductants and a Clark microelectrode. Optimal hydrogen production (443 TONs - 3 mL of H-2) was achieved under visible light-driven conditions, in the presence of a noble metal-free photosensitizer, the water soluble porphyrin 2Cl(4), and the ascorbate/tris-(2-carboxyethyl)phosphine (TCEP) sacrificial electron donor system.

Published
2018
Full Text
View/download PDF

10. Inorganic assembly catalysts for artificial photosynthesis: general discussion

Author

Hyunwoong Park, Leif Hammarström, Young Soo Kang, Flavia Cassiola, Joshua K. G. Karlsson, Devens Gust, Haruo Inoue, Hisanao Usami, Christopher D. Windle, Richard J. Cogdell, Tohru Setoyama, Yuki Shinohara, Dong Ryeol Whang, Peter A. Summers, Jose F. Martinez, Akihiko Kudo, Rengui Li, Dogukan Hazar Apaydin, Kristine Rodulfo Tolod, Etsuko Fujita, Katsuhiko Takagi, Sang Ook Kang, Fengtao Fan, Hiromu Kumagai, Can Li, Alexander Kibler, Osamu Ishitani, Kazunari Domen, Akihide Iwase, Elizabeth A. Gibson, Fabio Di Fonzo, Licheng Sun, Masanori Kodera, and Akira Yamakata

Subjects
Materials science, Environmental chemistry, 02 engineering and technology, Physical and Theoretical Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 0210 nano-technology, 01 natural sciences, 0104 chemical sciences, Artificial photosynthesis, Catalysis
Published
2017

11. Inside Cover: Electrocatalytic and Solar-Driven CO2 Reduction to CO with a Molecular Manganese Catalyst Immobilized on Mesoporous TiO2 (Angew. Chem. Int. Ed. 26/2016)

Author

Timothy E. Rosser, Erwin Reisner, and Christopher D. Windle

Subjects
010405 organic chemistry, Chemistry, INT, Inorganic chemistry, chemistry.chemical_element, General Chemistry, Manganese, 010402 general chemistry, Electrocatalyst, 01 natural sciences, Catalysis, 0104 chemical sciences, Hybrid material, Mesoporous material
Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results