Toward quantification of active site density and size-dependent ORR activity of ZIF-derived carbons in alkaline electrolyte

Cong Yong,Yipu Xu,Hui Yu, Peiran Wu,Jiansong Wang,Liu-Liu Shen,Gui-Rong Zhang,Donghai Mei

Journal of Catalysis（2023）

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摘要

•ZDC-derived carbons with varying particle sizes were synthesized.•Smaller ZDC particles are intrinsically more active toward ORR.•ORR activity of ZDCs shows an exponential dependence on the site density of Co-Nx.•Smaller ZDC particles offer greater abundance and accessibility of active sites.•Surface and bulk compositions of ZDC particles are different.

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关键词

carbons,active site density,alkaline,size-dependent,zif-derived

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