How to minimise hydrogen evolution on carbon based materials?
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
In many electrochemical systems, such as carbon dioxide reduction, batteries and supercapacitors, hydrogen evolution reaction is an undesired competing reaction. Herein, we investigate the factors controlling the hydrogen evolution reaction (HER) on seven different commercial carbon materials commonly found in many of these systems. The electrochemical HER response was determined by rotating disk electrode potential hold measurements in acidic media, and correlated with the physical characteristics of the carbon materials determined nitrogen adsorption/desorption, as well as previous experiments on the same materials. An on-chip electrochemical mass spectrometer was used to probe the gaseous products produced at the electrode in situ, which allowed HER to be distinguished from other competing reaction and the onset of the reaction was established to be −0.38 V vs RHE. The results indicate that carbons with low amount of metal impurities have the lowest H2 evolution rates.
Date Issued
2022-05-12
Date Acceptance
2022-04-04
Citation
Journal of Electrochemical Society, 2022, 169 (5)
ISSN
0013-4651
Publisher
The Electrochemical Society
Journal / Book Title
Journal of Electrochemical Society
Volume
169
Issue
5
Copyright Statement
© 2022 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited. This is an open access
article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/
by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/
by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000794029300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
CATALYSTS
CO2 REDUCTION
ELECTROCATALYSTS
ELECTROCHEMICAL REDUCTION
Electrochemistry
ELECTROLYSIS
ENERGY
FUEL
INTERFACE
Materials Science
Materials Science, Coatings & Films
NITROGEN
OXYGEN
Physical Sciences
Science & Technology
Technology
Publication Status
Published
Article Number
ARTN 054516