Prats, Hector;
Chan, Karen;
(2021)
The determination of the HOR/HER reaction mechanism from experimental kinetic data.
Physical Chemistry Chemical Physics
, 23
(48)
pp. 27150-27158.
10.1039/d1cp04134g.
Preview |
Text
d1cp04134g.pdf - Published Version Download (3MB) | Preview |
Abstract
Hydrogen oxidation and evolution are important processes from both a fundamental and applied perspective. In interpreting experimental kinetic data, few studies have explicitly accounted for the impact of H* coverage and mass transport, which lead to discrepancies in the kinetic parameters and the resultant reaction mechanism. Here, we present how to determine the kinetic parameters accounting for both effects. We discuss the use of the kinetic parameters towards mechanistic interpretations for HOR/HER and show that, in general, knowledge of the coverage of H* or activation energies may be required to assign a reaction mechanism. We apply these ideas to activity data of several HOR and HER electrocatalysts, such as Au, Pt, MoS2, and CoP.
| Type: | Article |
|---|---|
| Title: | The determination of the HOR/HER reaction mechanism from experimental kinetic data |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d1cp04134g |
| Publisher version: | https://doi.org/10.1039/D1CP04134G |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10153208 |
Archive Staff Only
 |
View Item |
