Interface engineering in the α-Co(OH)2/ZIF-67 heterostructure for enhanced oxygen evolution electrocatalysis

Autor:	Nan Zhang, Xue-Zhi Song, Yu Pan, Xiaofeng Wang, Zan-Yao Niu, Zhenquan Tan
Rok vydání:	2021
Předmět:	Tafel equation Chemistry Kinetics Oxygen evolution chemistry.chemical_element General Chemistry Electrocatalyst Electrochemistry Catalysis Chemical engineering Materials Chemistry Cobalt Zeolitic imidazolate framework
Zdroj:	New Journal of Chemistry. 45:10199-10203
ISSN:	1369-9261 1144-0546
DOI:	10.1039/d1nj01286j
Popis:	The confined growth of ZIF-67 (ZIF = zeolitic imidazolate framework) on α-Co(OH)2 nanosheets has been successfully achieved. The interface coupling in α-Co(OH)2/ZIF-67 would regulate the electrochemical environment of cobalt at the interface and expose more active sites. As a result, the optimal α-Co(OH)2/ZIF-67-0.6 catalyst exhibits higher activity (η10 = 320 mV), fast kinetics (Tafel slope of 109.3 mV dec−1), and excellent durability after continuous operation for 24 h.
Databáze:	OpenAIRE
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