NiSe2 pyramids deposited on N-doped graphene encapsulated Ni foam for high-performance water oxidation
By Yu, Jing; Li, Qianqian; Xu, Cheng-Yan; Chen, Na; Li, Yuan; Liu, Heguang; Zhen, Liang; Dravid, Vinayak P.; Wu, Jinsong
Published in J. Mater. Chem. A
NULL
2017
Abstract
The development of highly efficient water oxidation electrocatalysts made of low-cost and earth-abundant elements is a prerequisite. Sluggish kinetics in the reaction of water splitting is the major obstacle. Herein, we report the fabrication of a robust catalyst for the oxygen evolution reaction (OER) based on the hybrid of N-doped graphene coupled metallic NiSe2 pyramids (NG/NiSe2/NF). The reaction kinetics has greatly increased due to the synergistic effects of the two components providing enhanced electroconductibility and increased active sites. The NG/NiSe2/NF electrode exhibits superior water oxidation ability and cycle stability. This approach opens ways to design effective oxygen evolution electrodes.
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