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Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer
The electrical double‐layer plays a key role in important interfacial electrochemical processes from catalysis to energy storage and corrosion. Therefore, understanding its structure is crucial for the progress of sustainable technologies. We extract new physico‐chemical information on the capacitan...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9300121/ https://www.ncbi.nlm.nih.gov/pubmed/34796598 http://dx.doi.org/10.1002/anie.202112679 |
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author | Azimzadeh Sani, Mahnaz Pavlopoulos, Nicholas G. Pezzotti, Simone Serva, Alessandra Cignoni, Paolo Linnemann, Julia Salanne, Mathieu Gaigeot, Marie‐Pierre Tschulik, Kristina |
author_facet | Azimzadeh Sani, Mahnaz Pavlopoulos, Nicholas G. Pezzotti, Simone Serva, Alessandra Cignoni, Paolo Linnemann, Julia Salanne, Mathieu Gaigeot, Marie‐Pierre Tschulik, Kristina |
author_sort | Azimzadeh Sani, Mahnaz |
collection | PubMed |
description | The electrical double‐layer plays a key role in important interfacial electrochemical processes from catalysis to energy storage and corrosion. Therefore, understanding its structure is crucial for the progress of sustainable technologies. We extract new physico‐chemical information on the capacitance and structure of the electrical double‐layer of platinum and gold nanoparticles at the molecular level, employing single nanoparticle electrochemistry. The charge storage ability of the solid/liquid interface is larger by one order‐of‐magnitude than predicted by the traditional mean‐field models of the double‐layer such as the Gouy–Chapman–Stern model. Performing molecular dynamics simulations, we investigate the possible relationship between the measured high capacitance and adsorption strength of the water adlayer formed at the metal surface. These insights may launch the active tuning of solid–solvent and solvent–solvent interactions as an innovative design strategy to transform energy technologies towards superior performance and sustainability. |
format | Online Article Text |
id | pubmed-9300121 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-93001212022-07-21 Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer Azimzadeh Sani, Mahnaz Pavlopoulos, Nicholas G. Pezzotti, Simone Serva, Alessandra Cignoni, Paolo Linnemann, Julia Salanne, Mathieu Gaigeot, Marie‐Pierre Tschulik, Kristina Angew Chem Int Ed Engl Research Articles The electrical double‐layer plays a key role in important interfacial electrochemical processes from catalysis to energy storage and corrosion. Therefore, understanding its structure is crucial for the progress of sustainable technologies. We extract new physico‐chemical information on the capacitance and structure of the electrical double‐layer of platinum and gold nanoparticles at the molecular level, employing single nanoparticle electrochemistry. The charge storage ability of the solid/liquid interface is larger by one order‐of‐magnitude than predicted by the traditional mean‐field models of the double‐layer such as the Gouy–Chapman–Stern model. Performing molecular dynamics simulations, we investigate the possible relationship between the measured high capacitance and adsorption strength of the water adlayer formed at the metal surface. These insights may launch the active tuning of solid–solvent and solvent–solvent interactions as an innovative design strategy to transform energy technologies towards superior performance and sustainability. John Wiley and Sons Inc. 2021-12-17 2022-01-26 /pmc/articles/PMC9300121/ /pubmed/34796598 http://dx.doi.org/10.1002/anie.202112679 Text en © 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Azimzadeh Sani, Mahnaz Pavlopoulos, Nicholas G. Pezzotti, Simone Serva, Alessandra Cignoni, Paolo Linnemann, Julia Salanne, Mathieu Gaigeot, Marie‐Pierre Tschulik, Kristina Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title | Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title_full | Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title_fullStr | Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title_full_unstemmed | Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title_short | Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer |
title_sort | unexpectedly high capacitance of the metal nanoparticle/water interface: molecular‐level insights into the electrical double layer |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9300121/ https://www.ncbi.nlm.nih.gov/pubmed/34796598 http://dx.doi.org/10.1002/anie.202112679 |
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