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Interface engineering of heterostructured electrocatalysts towards efficient alkaline hydrogen electrocatalysis
Guoqiang Zhao1, Yinzhu Jiang2, Shi-Xue Dou3
1School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China; Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2522, Australia.
Interface engineering significantly enhances alkaline hydrogen evolution and oxidation reactions (HER/HOR) using heterostructured electrocatalysts. This approach optimizes kinetics and durability for efficient renewable hydrogen cycles.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Efficient alkaline hydrogen evolution and oxidation reactions (HER/HOR) are crucial for renewable hydrogen technologies.
- Heterostructured electrocatalysts offer potential for improved performance in alkaline media.
Purpose of the Study:
- To review the role of interface engineering in developing efficient heterostructured electrocatalysts for alkaline HER and HOR.
- To discuss how interface engineering boosts reaction kinetics and provides fundamental insights.
Main Methods:
- Review of current research on interface engineering in heterostructured electrocatalysts.
- Analysis of synergistic effects, electronic structure tuning, and confinement effects at interfaces.
Main Results:
- Heterostructured electrocatalysts with engineered interfaces exhibit accelerated alkaline HER/HOR kinetics.
- Synergistic effects balance intermediate adsorption/desorption, while electronic tuning optimizes binding energies.
- Confinement effects enhance catalyst durability by maintaining active site density.
Conclusions:
- Interface engineering is key to advancing heterostructured electrocatalysts for alkaline hydrogen electrocatalysis.
- Further research is needed to address challenges and explore opportunities in this field.
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