NDLI: Three-dimensional metal–organic framework derived porous CoP<sub>3</sub> concave polyhedrons as superior bifunctional electrocatalysts for the evolution of hydrogen and oxygen

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Shijian Wu, Tianli Wang, Xiaodeng Zhang, Dingke Pi, Mingyu
Copyright Year	2017
Abstract	Developing low-cost and highly-efficient non-precious metal bifunctional electrocatalysts towards the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is an attractively alternative strategy to solve the environmental pollution problems and energy demands. In this study, metal–organic framework (MOF) derived porous cobalt poly-phosphide (CoP3) concave polyhedrons are prepared and explored as superior bifunctional electrocatalysts for the HER and OER. The prepared MOF derived CoP3 concave polyhedrons show excellent electrocatalytic activity and stability towards the HER and OER in both acidic and alkaline media, with the Tafel slopes of 53 mV dec−1 and 76 mV dec−1 and a current density of 10 mA cm−2 at the overpotentials of −78 and 343 mV for the HER and OER, respectively, which are remarkably superior to those of the transition metal phosphides (TMPs) and comparable to those of the commercial precious metal catalysts. In addition, they also offer efficient catalytic activities and durabilities under neutral and basic conditions for the HER. The results of our study may shed light on the direction towards highly efficient bifunctional TMP electrocatalysts with high phosphorous component.
Starting Page	2104
Ending Page	2110
Page Count	7
File Format	HTM / HTML PDF
ISSN	14639076
Volume Number	19
Issue Number	3
Journal	Physical Chemistry Chemical Physics
DOI	10.1039/c6cp07294a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Precious metal Hydrogen Oxygen evolution Transition metal Tafel Cobalt Current density
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry

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