Cation–hydroxide–water coadsorption inhibits the alkaline hydrogen oxidation reaction
Abstract
Rotating disk electrode voltammograms and infrared reflection absorption spectra indicate that the hydrogen oxidation reaction of platinum in 0.1 M tetramethylammonium hydroxide solution is adversely impacted by time-dependent and potential-driven cation–hydroxide–water coadsorption. Impedance analysis suggests that the hydrogen oxidation reaction inhibition is mainly caused by the hydrogen diffusion barrier of the coadsorbed trilayer rather than intuitive catalyst site blocking by the adsorbed cation species. Finally, these results give useful insights on how to design ionomeric binders for advanced alkaline membrane fuel cells.
- Authors:
-
[1];
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- The Univ. of New Mexico, Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1356127
- Report Number(s):
- LA-UR-15-27065
Journal ID: ISSN 1948-7185
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry Letters
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 22; Journal ID: ISSN 1948-7185
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; energy sciences
Citation Formats
Chung, Hoon Taek, Martinez, Ulises, Matanovic, Ivana, and Kim, Yu Seung. Cation–hydroxide–water coadsorption inhibits the alkaline hydrogen oxidation reaction. United States: N. p., 2016.
Web. doi:10.1021/acs.jpclett.6b02025.
Chung, Hoon Taek, Martinez, Ulises, Matanovic, Ivana, & Kim, Yu Seung. Cation–hydroxide–water coadsorption inhibits the alkaline hydrogen oxidation reaction. United States. https://doi.org/10.1021/acs.jpclett.6b02025
Chung, Hoon Taek, Martinez, Ulises, Matanovic, Ivana, and Kim, Yu Seung. Mon .
"Cation–hydroxide–water coadsorption inhibits the alkaline hydrogen oxidation reaction". United States. https://doi.org/10.1021/acs.jpclett.6b02025. https://www.osti.gov/servlets/purl/1356127.
@article{osti_1356127,
title = {Cation–hydroxide–water coadsorption inhibits the alkaline hydrogen oxidation reaction},
author = {Chung, Hoon Taek and Martinez, Ulises and Matanovic, Ivana and Kim, Yu Seung},
abstractNote = {Rotating disk electrode voltammograms and infrared reflection absorption spectra indicate that the hydrogen oxidation reaction of platinum in 0.1 M tetramethylammonium hydroxide solution is adversely impacted by time-dependent and potential-driven cation–hydroxide–water coadsorption. Impedance analysis suggests that the hydrogen oxidation reaction inhibition is mainly caused by the hydrogen diffusion barrier of the coadsorbed trilayer rather than intuitive catalyst site blocking by the adsorbed cation species. Finally, these results give useful insights on how to design ionomeric binders for advanced alkaline membrane fuel cells.},
doi = {10.1021/acs.jpclett.6b02025},
journal = {Journal of Physical Chemistry Letters},
number = 22,
volume = 7,
place = {United States},
year = {Mon Oct 24 00:00:00 EDT 2016},
month = {Mon Oct 24 00:00:00 EDT 2016}
}
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