Establishing Performance Baselines for the Oxygen Evolution Reaction in Alkaline Electrolytes
Abstract
This paper establishes baseline performance of several platinum group metal (PGM) and non-PGM catalysts in alkaline oxygen evolution (OER). As OER catalyst development efforts increase, there is a need to standardize testing and baseline performance to compare catalysts between different studies, better direct materials development, and understand how performance improvements translate to the device. Of the catalysts tested, metals tend to have higher half-cell activity than their fully oxidized counterparts. In single-cells, however, metal activities approach oxides, likely due to the elevated temperature, higher potential, and longer time needed to condition membrane electrode assemblies (MEAs) relative to rotating disk electrodes (RDEs). In RDEs, cobalt (Co) and ruthenium nanoparticles are the most OER active. Due to high ruthenium dissolution rates, however, iridium (Ir) is used as a PGM baseline. Activity differences between materials in RDE (Ir 320 A g-1, Co 12 A g-1 at 1.55 V) further appear to translate to MEAs (Ir 1370 A g-1, Co 101 A g-1 at 1.5 V), indicating that half-cell testing can be useful in the early stages of catalyst development to predict kinetics at the device-level.
- Authors:
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office
- OSTI Identifier:
- 1598912
- Alternate Identifier(s):
- OSTI ID: 1603263
- Report Number(s):
- NREL/JA-5900-75887
Journal ID: ISSN 1945-7111
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Published Article
- Journal Name:
- Journal of the Electrochemical Society (Online)
- Additional Journal Information:
- Journal Name: Journal of the Electrochemical Society (Online) Journal Volume: 167 Journal Issue: 4; Journal ID: ISSN 1945-7111
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; nanomaterials; oxygen evolution; electrolysis; electrochemistry
Citation Formats
Anderson, Grace C., Pivovar, Bryan S., and Alia, Shaun M. Establishing Performance Baselines for the Oxygen Evolution Reaction in Alkaline Electrolytes. United States: N. p., 2020.
Web. doi:10.1149/1945-7111/ab7090.
Anderson, Grace C., Pivovar, Bryan S., & Alia, Shaun M. Establishing Performance Baselines for the Oxygen Evolution Reaction in Alkaline Electrolytes. United States. doi:https://doi.org/10.1149/1945-7111/ab7090
Anderson, Grace C., Pivovar, Bryan S., and Alia, Shaun M. Fri .
"Establishing Performance Baselines for the Oxygen Evolution Reaction in Alkaline Electrolytes". United States. doi:https://doi.org/10.1149/1945-7111/ab7090.
@article{osti_1598912,
title = {Establishing Performance Baselines for the Oxygen Evolution Reaction in Alkaline Electrolytes},
author = {Anderson, Grace C. and Pivovar, Bryan S. and Alia, Shaun M.},
abstractNote = {This paper establishes baseline performance of several platinum group metal (PGM) and non-PGM catalysts in alkaline oxygen evolution (OER). As OER catalyst development efforts increase, there is a need to standardize testing and baseline performance to compare catalysts between different studies, better direct materials development, and understand how performance improvements translate to the device. Of the catalysts tested, metals tend to have higher half-cell activity than their fully oxidized counterparts. In single-cells, however, metal activities approach oxides, likely due to the elevated temperature, higher potential, and longer time needed to condition membrane electrode assemblies (MEAs) relative to rotating disk electrodes (RDEs). In RDEs, cobalt (Co) and ruthenium nanoparticles are the most OER active. Due to high ruthenium dissolution rates, however, iridium (Ir) is used as a PGM baseline. Activity differences between materials in RDE (Ir 320 A g-1, Co 12 A g-1 at 1.55 V) further appear to translate to MEAs (Ir 1370 A g-1, Co 101 A g-1 at 1.5 V), indicating that half-cell testing can be useful in the early stages of catalyst development to predict kinetics at the device-level.},
doi = {10.1149/1945-7111/ab7090},
journal = {Journal of the Electrochemical Society (Online)},
number = 4,
volume = 167,
place = {United States},
year = {2020},
month = {1}
}
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DOI: https://doi.org/10.1149/1945-7111/ab7090
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