Cargando…
A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces
The coupling of electrochemical processes and surface strain has been widely investigated in the past. The present work briefly introduces a simple method to modulate the electrochemical process at metal surfaces by mechanical bending. In this way, the static strain at the metal layer can reach the...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6832917/ https://www.ncbi.nlm.nih.gov/pubmed/31614600 http://dx.doi.org/10.3390/molecules24203662 |
_version_ | 1783466256000614400 |
---|---|
author | Yuan, Aiting Zhang, Haixia Deng, Qibo |
author_facet | Yuan, Aiting Zhang, Haixia Deng, Qibo |
author_sort | Yuan, Aiting |
collection | PubMed |
description | The coupling of electrochemical processes and surface strain has been widely investigated in the past. The present work briefly introduces a simple method to modulate the electrochemical process at metal surfaces by mechanical bending. In this way, the static strain at the metal layer can reach the order of 1%. The cyclic voltammogram was used to study the electrosorption process of oxygen species at sputtered metal surfaces under different strain states. The experimental results show that the desorption peak potential of oxygen at the Au surface shifted positively by tensile strain, whereas the desorption peak potential at the Pt surface shifted negatively. This phenomenon indicates that tensile strain has an opposite effect on the electrosorption process for Au and Pt surfaces. Our results agree with the previous reports on the potential variation induced by dynamic strain. This work thus offers a simple method to modulate the electrosorption process at metal surfaces and then to enhance the reactivity of metal electrodes. |
format | Online Article Text |
id | pubmed-6832917 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68329172019-11-25 A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces Yuan, Aiting Zhang, Haixia Deng, Qibo Molecules Article The coupling of electrochemical processes and surface strain has been widely investigated in the past. The present work briefly introduces a simple method to modulate the electrochemical process at metal surfaces by mechanical bending. In this way, the static strain at the metal layer can reach the order of 1%. The cyclic voltammogram was used to study the electrosorption process of oxygen species at sputtered metal surfaces under different strain states. The experimental results show that the desorption peak potential of oxygen at the Au surface shifted positively by tensile strain, whereas the desorption peak potential at the Pt surface shifted negatively. This phenomenon indicates that tensile strain has an opposite effect on the electrosorption process for Au and Pt surfaces. Our results agree with the previous reports on the potential variation induced by dynamic strain. This work thus offers a simple method to modulate the electrosorption process at metal surfaces and then to enhance the reactivity of metal electrodes. MDPI 2019-10-11 /pmc/articles/PMC6832917/ /pubmed/31614600 http://dx.doi.org/10.3390/molecules24203662 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yuan, Aiting Zhang, Haixia Deng, Qibo A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title | A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title_full | A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title_fullStr | A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title_full_unstemmed | A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title_short | A Simple Mechanical Method to Modulate the Electrochemical Electrosorption Processes at Metal Surfaces |
title_sort | simple mechanical method to modulate the electrochemical electrosorption processes at metal surfaces |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6832917/ https://www.ncbi.nlm.nih.gov/pubmed/31614600 http://dx.doi.org/10.3390/molecules24203662 |
work_keys_str_mv | AT yuanaiting asimplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces AT zhanghaixia asimplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces AT dengqibo asimplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces AT yuanaiting simplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces AT zhanghaixia simplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces AT dengqibo simplemechanicalmethodtomodulatetheelectrochemicalelectrosorptionprocessesatmetalsurfaces |