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Promoting Electrocatalytic Oxygen Reactions Using Advanced Heterostructures for Rechargeable Zinc-Air Battery
Dingrong Qiu1,2, Huihui Wang1,2, Tingting Ma1,2
1Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P.R. China.
ACS Nano
|August 12, 2024
Summary
Developing advanced heterostructure electrocatalysts is key to overcoming slow oxygen reaction kinetics in rechargeable zinc-air batteries (ZABs). These engineered materials enhance bifunctional activity, paving the way for next-generation energy storage solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Rechargeable zinc-air batteries (ZABs) offer high energy density and eco-friendliness but are limited by slow oxygen reduction (ORR) and oxygen evolution (OER) kinetics.
- Efficient electrocatalysts are crucial for facilitating these electrochemical oxygen reactions in ZABs.
Purpose of the Study:
- To review recent advancements in heterostructure electrocatalysts for ZABs.
- To explore heterointerfacial engineering strategies for enhancing bifunctional ORR/OER activity.
- To discuss future perspectives for improving ZAB performance.
Main Methods:
- Explanation of ZAB configurations and air electrode electrochemistry.
- Summary of various heterostructures and their impact on ZAB performance.
- Overview of heterointerfacial engineering strategies (surface chemistry, dimensionality, charge transfer, transport, morphology).
Main Results:
- Heterostructure electrocatalysts show potential to overcome limitations of single-material catalysts.
- Tailoring interfacial properties significantly improves ORR/OER kinetics and ZAB performance.
- Multicomponent design approaches yield highly active bifunctional catalysts.
Conclusions:
- Heterointerfacial engineering is a promising strategy for developing advanced electrocatalysts for ZABs.
- Further research into multicomponent designs and interfacial optimization is needed to enhance ZAB bifunctional activity and overall performance.
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