期刊
NANOTECHNOLOGY
卷 32, 期 22, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/abe9e4
关键词
oxygen evolution reaction; metallocens; metal-organic frameworks; nanosheets
资金
- National Natural Science Foundation of China [52062003]
Metallocens were hybridized with two dimensional MOFs via an improved inter-diffusion approach to create bimetallic composites, which showed remarkable activity in the oxygen evolution reaction. This study presents a novel strategy for synthesizing low-cost bimetallic catalysts with great promise in electrocatalysis of oxygen.
Herein, metallocens (ferrocene, ruthenocene and cobaltocene) were in situ hybridized with two dimensional metal-organic frameworks (MOFs) via an improved inter-diffusion approach. The metallocens@MOFs hybrids were direct carbonized and transformed to Fe(Ru,Co)-Co@C composites. These bimetallic electrocatalysts show remarkable oxygen evolution reaction (OER) activity by taking advantage of the synergetic effect between the binary metals. Among of them, the obtained Fe-Co@C exhibits lower overpotential (320 mV at 10 mA cm(-2)) and satisfactory stability toward OER. The study presents a novel and facile strategy to synthesize low-cost bimetallic catalyst, showing great promise in electrocatalysis of oxygen.
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