Search

Your search keyword '"Montes-García, Verónica"' showing total 145 results
Start Over Author "Montes-García, Verónica"
145 results on '"Montes-García, Verónica"'

4. Template-assisted synthesis of hollow anthraquinone-based covalent organic frameworks for aqueous zinc-ion hybrid supercapacitors.

Author

Montes-García, Verónica, Valentini, Cataldo, Klymovych, Denys, Kukułka, Wojciech, Shi, Linghao, Patroniak, Violetta, Samorιave;, Paolo, and Ciesielski, Artur

Subjects
*ENERGY density, *ELECTRODE performance, *SUPERCAPACITORS, *ELECTRIC capacity, *POLYSTYRENE
Abstract

Anthraquinone-based hollow COFs were synthesized via a template-assisted method involving polystyrene nanospheres as the hard template, which enabled doubling the specific capacitance and energy density compared to non-templated COFs. Our approach can be extended to other COFs, offering a promising strategy for enhancing the performance of COF-based electrodes in energy storage applications. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

8. Boosting Zinc Hybrid Supercapacitor Performance via Thiol Functionalization of Graphene‐Based Cathodes.

Author

Valentini, Cataldo, Montes‐García, Verónica, Ciesielski, Artur, and Samorì, Paolo

Subjects
*SUPERCAPACITOR performance, *ENERGY storage, *SUPERCAPACITOR electrodes, *ENERGY density, *CATHODES, *CLEAN energy
Abstract

Zinc hybrid supercapacitors (Zn‐HSCs) hold immense potential toward the next‐generation energy storage systems, effectively spanning the divide between conventional lithium‐ion batteries (LIBs) and supercapacitors. Unfortunately, the energy density of most of Zn‐HSCs has not yet rivalled the levels observed in LIBs. The electrochemical performance of aqueous Zn‐HSCs can be enhanced through the chemical functionalization of graphene‐based cathode materials with thiol moieties as they will be highly suitable for favoring Zn2+ adsorption/desorption. Here, a single‐step reaction is employed to synthesize thiol‐functionalized reduced graphene oxide (rGOSH), incorporating both oxygen functional groups (OFGs) and thiol functionalities, as demonstrated by X‐ray photoelectron spectroscopy (XPS) studies. Electrochemical analysis reveals that rGOSH cathodes exhibit a specific capacitance (540 F g−1) and specific capacity (139 mAh g−1) at 0.1 A g−1 as well as long‐term stability, with over 92% capacitance retention after 10 000 cycles, outperforming chemically reduced graphene oxide (CrGO). Notably, rGOSH electrodes displayed an exceptional maximum energy density of 187.6 Wh kg−1 and power density of 48.6 kW kg−1. Overall, this study offers an unprecedented powerful strategy for the design and optimization of cathode materials, paving the way for efficient and sustainable energy storage solutions to meet the increasing demands of modern energy applications. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

10. Enhancing the Carrier Transport in Monolayer MoS2 through Interlayer Coupling with 2D Covalent Organic Frameworks

Author

Wang, Can, primary, Cusin, Luca, additional, Ma, Chun, additional, Unsal, Elif, additional, Wang, Hanlin, additional, Consolaro, Valentina Girelli, additional, Montes‐García, Verónica, additional, Han, Bin, additional, Vitale, Stefania, additional, Dianat, Arezoo, additional, Croy, Alexander, additional, Zhang, Haiming, additional, Gutierrez, Rafael, additional, Cuniberti, Gianaurelio, additional, Liu, Zhaoyang, additional, Chi, Lifeng, additional, Ciesielski, Artur, additional, and Samorì, Paolo, additional

Published
2023
Full Text
View/download PDF

13. MOF (UiO-66-NH2)@COF (TFP–TABQ) hybrids via on-surface condensation reactions for sustainable energy storage.

Author

Pakulski, Dawid, Montes-García, Verónica, Czepa, Włodzimierz, Marcinkowski, Dawid, Peng, Haijun, Chudziak, Tomasz, Gorczyński, Adam, Kukułka, Wojciech, Valentini, Cataldo, Patroniak, Violetta, Samorιave;, Paolo, and Ciesielski, Artur

Subjects
*CLEAN energy, *CONDENSATION reactions, *ENERGY storage, *SURFACE area
Abstract

Core–shell MOF@COF hybrids were synthesized via subsequent modification of MOF UiO-66-NH2 with 1,3,5-triformylphloroglucinol (TFP) and 2,3,5,6-tetraaminobenzoquinone (TABQ). The hybrids exhibited significant surface area (236 m2 g−1) and outstanding electrochemical performance (103 F g−1 at 0.5 A g−1), surpassing both COFs and MOFs, thereby showcasing the potential of on-surface condensation reactions for developing high-performance energy storage devices. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

14. Two-dimensional metal–organic polymers as cathode hybrid materials for high-performance Al-batteries.

Author

Pakulski, Dawid, Montes-García, Verónica, Gorczyński, Adam, Czepa, Włodzimierz, Chudziak, Tomasz, Bielejewski, Michał, Musiał, Andrzej, Pérez-Juste, Ignacio, Samorιave;, Paolo, and Ciesielski, Artur

Abstract

Organic materials represent a promising alternative to critical raw materials for energy storage applications due to their sustainable production combined with tunable structures and functionalities. Unfortunately, the biggest limitation of organic materials is their high solubility in aqueous electrolytes, which results in a poor cycling stability. Metal–organic polymers (MOPs) have emerged as versatile organic materials, which exhibit enhanced chemical stability as well as redox activity depending on the employed building units. Here, by mastering a coordination chemistry approach, two novel MOPs were synthesized via a coordination process between tetraminobenzoquinone (TABQ) and a metal ion (i.e., zinc or copper) and were explored as cathode materials for aluminum-ion batteries. The resulting Zn-TABQ MOP exhibited superior electrochemical performance compared to other common cathode materials in Al-batteries. Specifically, Zn-TABQ revealed a specific capacity of 198 mA h g−1 at 0.05 A g−1, combined with high-capacity retention (92%) after 5000 cycles at a scan rate of 1 A g−1 and an outstanding energy density of 247 W h kg−1. We demonstrated via ex situ characterization that the electrochemically active carbonyl (C＝O) units of Zn-TABQ coordinate with AlCl2+ and EMIM+ ions, thereby governing the mechanism of ion storage and release by taking advantage of the nature of the reversible interaction. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

16. New Anderson‐Based Polyoxometalate Covalent Organic Frameworks as Electrodes for Energy Storage Boosted Through Keto‐Enol Tautomerization

Author

Pakulski, Dawid, primary, Gorczyński, Adam, additional, Brykczyńska, Daria, additional, Montes‐García, Verónica, additional, Czepa, Włodzimierz, additional, Janica, Iwona, additional, Bielejewski, Michał, additional, Kubicki, Maciej, additional, Patroniak, Violetta, additional, Samorì, Paolo, additional, and Ciesielski, Artur, additional

Published
2023
Full Text
View/download PDF

24. Nanofloating gate modulated synaptic organic light-emitting transistors for reconfigurable displays

Author

Chen, Yusheng, Wang, Hanlin, Luo, Feng, Montes-García, Verónica, Liu, Zhaoyang, Samorì, Paolo, Institut de Science et d'ingénierie supramoléculaires (ISIS), Université Louis Pasteur - Strasbourg I-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-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)-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), ANR-10-IDEX-0002,UNISTRA,Par-delà les frontières, l'Université de Strasbourg(2010), univOAK, Archive ouverte, Initiative d'excellence - Par-delà les frontières, l'Université de Strasbourg - - UNISTRA2010 - ANR-10-IDEX-0002 - IDEX - VALID, ANR-19-GRF1-0005,prospect,PatteRned cOatings based on 2D materials benzoxazine reSin hybrids for broad range Pressure detection(2019), European Project: 833707,SUPRA2DMAT, and European Project: 881603,H2020,H2020-SGA-FET-GRAPHENE-2019, GrapheneCore3(2020)

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, Multidisciplinary, [CHIM.MATE]Chemical Sciences/Material chemistry
Abstract

International audience; The use of postsynaptic current to drive long-lasting luminescence holds a disruptive potential for harnessing the next-generation of smart displays. Multiresponsive long afterglow emission can be achieved by integrating light-emitting polymers in electric spiked transistors trigged by distinct presynaptic signals inputs. Here, we report a highly effective electric spiked long afterglow organic light-emitting transistor (LAOLET), whose operation relies on a nanofloating gate architecture. Long afterglow emission with reconfigurable brightness and retention time is observed upon applying specific positive gate voltage spiked. Conversely, when negative gate voltage stimulus is applied, these LAOLETs function as click-on display. Interestingly, upon endowing the device with force sensing capabilities, it can operate as a long afterglow pressure sensor that emits long-lasting green light subsequently to a controlled extrusion action.

Published
2022
Full Text
View/download PDF

29. Supramolecular engineering of cathode materials for aqueous zinc-ion hybrid supercapacitors: novel thiophene-bridged donor–acceptor sp2 carbon-linked polymers.

Author

Peng, Haijun, Montes-García, Verónica, Raya, Jésus, Wang, Hanlin, Guo, Haipeng, Richard, Fanny, Samorιave;, Paolo, and Ciesielski, Artur

Abstract

Rechargeable aqueous zinc-ion hybrid supercapacitors (Zn-HSCs) are promising candidates as large-scale energy storage devices owing to their high electrochemical performance, safety, long life, and low price. The development of nanostructured electrode materials featuring multiple active sites capable of interacting with Zn ions represents an efficient strategy to boost their electrochemical performance. In this work, we report for the first time the use of donor–acceptor carbon-linked conjugated polymers (DA-CCPs) as cathodes in aqueous Zn-HSCs. We have synthesized two novel DA-CCPs via Knoevenagel polymerization between electron-accepting 2,2′,2′′-(benzene-1,3,5-triyl)triacetonitrile and electron-donating 2,5-thiophene dicarboxaldehyde or [2,2′-bithiophene]-5,5′-dicarboxaldehyde, yielding DA-CCP-1 and DA-CCP-2, respectively. DA-CCP-2, which possesses an extra-thiophene unit in the backbone, exhibits improved electrochemical characteristics when compared to DA-CCP-1, and performance surpassing those of other reported cathode materials for aqueous Zn2+ energy storage systems. DA-CCP-1 and -2 based electrodes exhibited an outstanding energy density of 80.6 and 196.3 W h kg−1 respectively, representing the highest value ever reached for conjugated polymers to date. This study not only offers new perspectives for the rational design and precise synthesis of DA-CCPs but it also broadens the choice of cathodes for high-performance aqueous Zn-HSCs. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

31. Chemiresistors: Harnessing Selectivity and Sensitivity in Ion Sensing via Supramolecular Recognition: A 3D Hybrid Gold Nanoparticle Network Chemiresistor (Adv. Funct. Mater. 10/2021)

Author

Montes‐García, Verónica, primary, Oliveira, Rafael Furlan, additional, Wang, Ye, additional, Berezin, Andrey, additional, Fanjul‐Bolado, Pablo, additional, González García, María Begoña, additional, Hermans, Thomas M., additional, Bonifazi, Davide, additional, Casalini, Stefano, additional, and Samorì, Paolo, additional

Published
2021
Full Text
View/download PDF

36. Harnessing Selectivity and Sensitivity in Ion Sensing via Supramolecular Recognition: A 3D Hybrid Gold Nanoparticle Network Chemiresistor

Author

Montes‐García, Verónica, primary, Oliveira, Rafael Furlan, additional, Wang, Ye, additional, Berezin, Andrey, additional, Fanjul‐Bolado, Pablo, additional, González García, María Begoña, additional, Hermans, Thomas M., additional, Bonifazi, Davide, additional, Casalini, Stefano, additional, and Samorì, Paolo, additional

Published
2020
Full Text
View/download PDF

41. Harnessing Selectivity and Sensitivity in Ion Sensing via Supramolecular Recognition: A 3D Hybrid Gold Nanoparticle Network Chemiresistor.

Author

Montes‐García, Verónica, Oliveira, Rafael Furlan, Wang, Ye, Berezin, Andrey, Fanjul‐Bolado, Pablo, González García, María Begoña, Hermans, Thomas M., Bonifazi, Davide, Casalini, Stefano, and Samorì, Paolo

Subjects
*SALIVA, *GOLD nanoparticles, *ARTIFICIAL saliva, *REACTION time, *SYSTEM integration, *MICROFLUIDIC devices
Abstract

The monitoring of K+ in saliva, blood, urine, or sweat represents a future powerful alternative diagnostic tool to prevent various diseases. However, several K+ sensors are unable to meet the requirements for the development of point‐of‐care (POC) sensors. To tackle this grand‐challenge, the fabrication of chemiresistors (CRs) based on 3D networks of Au nanoparticles covalently bridged by ad‐hoc supramolecular receptors for K+, namely dithiomethylene dibenzo‐18‐crown‐6 ether is reported here. A multi‐technique characterization allows optimizing a new protocol for fabricating high‐performing CRs for real‐time monitoring of K+ in complex aqueous environments. The sensor shows exceptional figures of merit: i) linear sensitivity in the 10–3 to 10–6m concentration range; ii) high selectivity to K+ in presence of interfering cations (Na+, Ca2+, and Mg2+); iii) high shelf‐life stability (>45 days); iv) reversibility of K+ binding and release; v) successful device integration into microfluidic systems for real‐time monitoring; vi) fast response and recovery times (<18 s), and v) K+ detection in artificial saliva. All these characteristics make the supramolecular CRs a potential tool for future applications as POC devices, especially for health monitoring where the determination of K+ in saliva is pivotal for the early diagnosis of diseases. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

44. Harnessing selectivity in chemical sensing viasupramolecular interactions: from functionalization of nanomaterials to device applications

Author

Furlan de Oliveira, Rafael, Montes-García, Verónica, Ciesielski, Artur, and Samorì, Paolo

Abstract

Chemical sensing is a strategic field of science and technology ultimately aiming at improving the quality of our lives and the sustainability of our Planet. Sensors bear a direct societal impact on well-being, which includes the quality and composition of the air we breathe, the water we drink, and the food we eat. Pristine low-dimensional materials are widely exploited as highly sensitive elements in chemical sensors, although they suffer from lack of intrinsic selectivity towards specific analytes. Here, we showcase the most recent strategies on the use of (supra)molecular interactions to harness the selectivity of suitably functionalized 0D, 1D, and 2D low-dimensional materials for chemical sensing. We discuss how the design and selection of receptors viamachine learning and artificial intelligence hold a disruptive potential in chemical sensing, where selectivity is achieved by the design and high-throughput screening of large libraries of molecules exhibiting a set of affinity parameters that dictates the analyte specificity. We also discuss the importance of achieving selectivity along with other relevant characteristics in chemical sensing, such as high sensitivity, response speed, and reversibility, as milestones for true practical applications. Finally, for each distinct class of low-dimensional material, we present the most suitable functionalization strategies for their incorporation into efficient transducers for chemical sensing.

Published
2021
Full Text
View/download PDF

45. Pillar[5]arene-Based Supramolecular Plasmonic Thin Films for Label-Free, Quantitative and Multiplex SERS Detection

Author

Montes-García, Verónica, primary, Gómez-González, Borja, additional, Martínez-Solís, Diego, additional, Taboada, José M., additional, Jiménez-Otero, Norman, additional, de Uña-Álvarez, Jacobo, additional, Obelleiro, Fernando, additional, García-Río, Luis, additional, Pérez-Juste, Jorge, additional, and Pastoriza-Santos, Isabel, additional

Published
2017
Full Text
View/download PDF

48. Au@pNIPAM SERRS Tags for Multiplex Immunophenotyping Cellular Receptors and Imaging Tumor Cells

Author

Bodelón, Gustavo, Montes-García, Verónica, Fernández-López, Cristina, Pastoriza-Santos, Isabel, Pérez-Juste, Jorge, and Liz-Marzán, Luis M.

Abstract

Detection technologies employing optically encoded particles have gained much interest toward clinical diagnostics and drug discovery, but the portfolio of available systems is still limited. The fabrication and characterization of highly stable surface-enhanced resonance Raman scattering (SERRS)-encoded colloids for the identification and imaging of proteins expressed in cells are reported. These plasmonic nanostructures are made of gold octahedra coated with poly(N-isopropylacrylamide) microgels and can be readily encoded with Raman active dyes while retaining high colloidal stability in biofluids. A layer-by-layer polyelectrolyte coating is used to seal the outer surface of the encoded particles and to provide a reactive surface for covalent conjugation with antibodies. The targeted multiplexing capabilities of the SERRS tags are demonstrated by the simultaneous detection and imaging of three tumor-associated surface biomarkers: epidermal growth factor receptor (EGFR), epithelial cell adhesion molecule (EpCAM), and homing cell adhesion molecule (CD44) by SERRS spectroscopy. The plasmonic microgels are able to discriminate tumor A431 (EGFR+/EpCAM+/CD44+) and nontumor 3T3 2.2 (EGFR−/EpCAM−/CD44+) cells while cocultured in vitro.

Published
2015

49. Plasmonic Au@Pd Nanorods with Boosted Refractive Index Susceptibility and SERS Efficiency: A Multifunctional Platform for Hydrogen Sensing and Monitoring of Catalytic Reactions

Author

Rodal-Cedeira, Sergio, primary, Montes-García, Verónica, additional, Polavarapu, Lakshminarayana, additional, Solís, Diego Martínez, additional, Heidari, Hamed, additional, La Porta, Andrea, additional, Angiola, Marco, additional, Martucci, Alessandro, additional, Taboada, José M., additional, Obelleiro, Fernando, additional, Bals, Sara, additional, Pérez-Juste, Jorge, additional, and Pastoriza-Santos, Isabel, additional

Published
2016
Full Text
View/download PDF

50. Detection and imaging of quorum sensing in Pseudomonas aeruginosa biofilm communities by surface-enhanced resonance Raman scattering

Author

Bodelón, Gustavo, primary, Montes-García, Verónica, additional, López-Puente, Vanesa, additional, Hill, Eric H., additional, Hamon, Cyrille, additional, Sanz-Ortiz, Marta N., additional, Rodal-Cedeira, Sergio, additional, Costas, Celina, additional, Celiksoy, Sirin, additional, Pérez-Juste, Ignacio, additional, Scarabelli, Leonardo, additional, La Porta, Andrea, additional, Pérez-Juste, Jorge, additional, Pastoriza-Santos, Isabel, additional, and Liz-Marzán, Luis M., additional

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results