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Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
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The Hydrogen Evolution Reaction in Alkaline Solution: From Theory, Single Crystal Models, to Practical
Yao Zheng1, Yan Jiao1, Anthony Vasileff1
1School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
Angewandte Chemie (International Ed. in English)
|December 2, 2017
Summary
The hydrogen evolution reaction (HER) in alkaline water splitting is slow. This review clarifies alkaline HER mechanisms by linking surface electrochemistry to catalyst design for efficient hydrogen production.
Area of Science:
- Electrocatalysis
- Energy Conversion
- Hydrogen Production
Background:
- The hydrogen evolution reaction (HER) is crucial for hydrogen energy sources.
- Slow HER kinetics in alkaline media impede efficient water splitting.
- Alkaline HER mechanisms remain less understood compared to acidic HER.
Purpose of the Study:
- To critically appraise alkaline HER electrocatalysis.
- To connect fundamental surface electrochemistry with catalyst design principles.
- To advance the understanding of alkaline HER at the atomic level.
Main Methods:
- Review of theoretical calculations.
- Analysis of surface characterization techniques.
- Examination of electrochemical experimental data.
Main Results:
- Discussion of ongoing debates in alkaline HER.
- Emphasis on single-crystal model studies.
- Bridging fundamental science to practical electrocatalyst development.
Conclusions:
- A deeper understanding of alkaline HER is essential for progress.
- Linking fundamental surface science to molecular design is key.
- This work provides insights for developing efficient alkaline HER electrocatalysts.
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