Journal
NANO-MICRO LETTERS
Volume 13, Issue 1, Pages -Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-021-00669-5
Keywords
Metal-organic framework; Non-noble metal; Oxygen electrocatalysts; Air electrode; Zinc-air batteries
Funding
- National Natural Science Foundation of China [22075092]
- Program for HUST Academic Frontier Youth Team [2018QYTD15]
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MOF-derived non-noble metal-oxygen electrocatalysts play a crucial role in ZABs, and their performance is influenced by material structure. Research in this field mainly focuses on oxygen reduction and oxygen evolution reactions, with evolving catalyst design strategies aiming to enhance performance and address challenges.
Oxygen electrocatalysts are of great importance for the air electrode in zinc-air batteries (ZABs). Owing to the high specific surface area, controllable pore size and unsaturated metal active sites, metal-organic frameworks (MOFs) derivatives have been widely studied as oxygen electrocatalysts in ZABs. To date, many strategies have been developed to generate efficient oxygen electrocatalysts from MOFs for improving the performance of ZABs. In this review, the latest progress of the MOF-derived non-noble metal-oxygen electrocatalysts in ZABs is reviewed. The performance of these MOF-derived catalysts toward oxygen reduction, and oxygen evolution reactions is discussed based on the categories of metal-free carbon materials, single-atom catalysts, metal cluster/carbon composites and metal compound/carbon composites. Moreover, we provide a comprehensive overview on the design strategies of various MOF-derived non-noble metal-oxygen electrocatalysts and their structure-performance relationship. Finally, the challenges and perspectives are provided for further advancing the MOF-derived oxygen electrocatalysts in ZABs.
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