Phase-Transformation Engineering in Cobalt Diselenide Realizing Enhanced Catalytic Activity for Hydrogen Evolution in an Alkaline Medium.

Chen, Pengzuo; Xu, Kun; Tao, Shi; Zhou, Tianpei; Tong, Yun; Ding, Hui; Zhang, Lidong; Chu, Wangsheng et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Phase-transformation engineering is successfully applied in designing an alkaline hydrogen evolution reaction (HER) electrocatalyst. Benefiting from phase-transformation engineering, which endows higher electrical conductivity, ideal water adsorption energy, and faster transformation efficiency of Hads into hydrogen, cubic-phase CoSe2 realizes an enhanced electrocatalytic activity for HER under alkaline conditions.