Highly efficient electrochemical hydrogen evolution based on nickel diselenide nanowall film. (11th April 2016)

• Record Type: Journal Article
• Authors: Tang, Chun; Xie, Lisi; Sun, Xuping; Asiri, Abdullah M; He, Yuquan
• Is Part Of: Nanotechnology. Volume 27:Number 20(2016)
• Publication Date: 2016-04-11
• Subjects: nickel diselenide -- nanowall -- electrocatalysis -- hydrogen evolution; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/0957-4484/27/20/20LT02
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: In this letter, we report on hydrothermal growth of nickel diselenide nanowall film on carbon cloth (NiSe2 NW/CC) through topotactic transformation from a Ni(OH)2 precursor based on anion exchange reactions. When tested as an integrated 3D hydrogen-evolving cathode in strongly acidic media, NiSe2 NW/CC exhibits outstanding catalytic activity superior to its powder counterpart and strong long-term durability. It displays 10 and 100 mA cm −2 at overpotentials of 145 and 183 mV, respectively, with its catalytic activity being retained for 40 h.