---
_id: '62806'
abstract:
- lang: eng
  text: 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.
article_number: e202112679
article_type: original
author:
- first_name: Mahnaz
  full_name: Azimzadeh Sani, Mahnaz
  last_name: Azimzadeh Sani
- first_name: Nicholas G.
  full_name: Pavlopoulos, Nicholas G.
  last_name: Pavlopoulos
- first_name: Simone
  full_name: Pezzotti, Simone
  last_name: Pezzotti
- first_name: Alessandra
  full_name: Serva, Alessandra
  last_name: Serva
- first_name: Paolo
  full_name: Cignoni, Paolo
  last_name: Cignoni
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
- first_name: Mathieu
  full_name: Salanne, Mathieu
  last_name: Salanne
- first_name: Marie‐Pierre
  full_name: Gaigeot, Marie‐Pierre
  last_name: Gaigeot
- first_name: Kristina
  full_name: Tschulik, Kristina
  last_name: Tschulik
citation:
  ama: 'Azimzadeh Sani M, Pavlopoulos NG, Pezzotti S, et al. Unexpectedly High Capacitance
    of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical
    Double Layer. <i>Angewandte Chemie International Edition</i>. 2021;61(5). doi:<a
    href="https://doi.org/10.1002/anie.202112679">10.1002/anie.202112679</a>'
  apa: 'Azimzadeh Sani, M., Pavlopoulos, N. G., Pezzotti, S., Serva, A., Cignoni,
    P., Linnemann, J., Salanne, M., Gaigeot, M., &#38; Tschulik, K. (2021). Unexpectedly
    High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights
    into the Electrical Double Layer. <i>Angewandte Chemie International Edition</i>,
    <i>61</i>(5), Article e202112679. <a href="https://doi.org/10.1002/anie.202112679">https://doi.org/10.1002/anie.202112679</a>'
  bibtex: '@article{Azimzadeh Sani_Pavlopoulos_Pezzotti_Serva_Cignoni_Linnemann_Salanne_Gaigeot_Tschulik_2021,
    title={Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface:
    Molecular‐Level Insights into the Electrical Double Layer}, volume={61}, DOI={<a
    href="https://doi.org/10.1002/anie.202112679">10.1002/anie.202112679</a>}, number={5e202112679},
    journal={Angewandte Chemie International Edition}, publisher={Wiley}, author={Azimzadeh
    Sani, Mahnaz and Pavlopoulos, Nicholas G. and Pezzotti, Simone and Serva, Alessandra
    and Cignoni, Paolo and Linnemann, Julia and Salanne, Mathieu and Gaigeot, Marie‐Pierre
    and Tschulik, Kristina}, year={2021} }'
  chicago: 'Azimzadeh Sani, Mahnaz, Nicholas G. Pavlopoulos, Simone Pezzotti, Alessandra
    Serva, Paolo Cignoni, Julia Linnemann, Mathieu Salanne, Marie‐Pierre Gaigeot,
    and Kristina Tschulik. “Unexpectedly High Capacitance of the Metal Nanoparticle/Water
    Interface: Molecular‐Level Insights into the Electrical Double Layer.” <i>Angewandte
    Chemie International Edition</i> 61, no. 5 (2021). <a href="https://doi.org/10.1002/anie.202112679">https://doi.org/10.1002/anie.202112679</a>.'
  ieee: 'M. Azimzadeh Sani <i>et al.</i>, “Unexpectedly High Capacitance of the Metal
    Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double
    Layer,” <i>Angewandte Chemie International Edition</i>, vol. 61, no. 5, Art. no.
    e202112679, 2021, doi: <a href="https://doi.org/10.1002/anie.202112679">10.1002/anie.202112679</a>.'
  mla: 'Azimzadeh Sani, Mahnaz, et al. “Unexpectedly High Capacitance of the Metal
    Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double
    Layer.” <i>Angewandte Chemie International Edition</i>, vol. 61, no. 5, e202112679,
    Wiley, 2021, doi:<a href="https://doi.org/10.1002/anie.202112679">10.1002/anie.202112679</a>.'
  short: M. Azimzadeh Sani, N.G. Pavlopoulos, S. Pezzotti, A. Serva, P. Cignoni, J.
    Linnemann, M. Salanne, M. Gaigeot, K. Tschulik, Angewandte Chemie International
    Edition 61 (2021).
date_created: 2025-12-03T15:39:25Z
date_updated: 2025-12-03T16:31:54Z
department:
- _id: '985'
doi: 10.1002/anie.202112679
extern: '1'
intvolume: '        61'
issue: '5'
keyword:
- single-entity electrochemistry
- electrical double layer
- supercapacitor
- nanoparticles
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Angewandte Chemie International Edition
publication_identifier:
  issn:
  - 1433-7851
  - 1521-3773
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level
  Insights into the Electrical Double Layer'
type: journal_article
user_id: '116779'
volume: 61
year: '2021'
...