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Acidic Oxygen Evolution Reaction: Fundamental Understanding and Electrocatalysts Design
Jiao Li1, Weichen Tian1,2, Qi Li3,4
1School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang, 050043, P.R. China.
Chemsuschem
|March 14, 2024
Summary
Green electricity powers water electrolysis for renewable energy storage. This review details acidic oxygen evolution reaction electrocatalysts, focusing on efficiency, stability, and cost for future hydrogen production.
Area of Science:
- Electrochemistry
- Materials Science
- Renewable Energy
Background:
- Proton exchange membrane (PEM) water electrolysis offers high purity hydrogen.
- Oxygen evolution reaction (OER) is kinetically challenging in acidic media.
- Advanced electrocatalysts are crucial for efficient acidic OER.
Purpose of the Study:
- To review acidic OER electrocatalysis and its mechanisms.
- To summarize catalyst modification strategies.
- To compare noble metal and noble metal-free catalysts.
Main Methods:
- Literature review of acidic OER electrocatalysis.
- Analysis of catalyst performance parameters.
- Discussion of catalyst design and modification.
Main Results:
- Noble metal-based catalysts show high activity but are costly.
- Noble metal-free catalysts are emerging as cost-effective alternatives.
- Catalyst modification strategies enhance acidic OER performance.
Conclusions:
- Acidic OER requires highly efficient, stable, and low-cost electrocatalysts.
- Further research into novel electrocatalyst design is needed.
- Optimized electrocatalysts will advance green hydrogen production.
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