Morphology-Controllable Synthesis of Cobalt Telluride Branched Nanostructures on Carbon Fiber Paper as Electrocatalysts for Hydrogen Evolution Reaction

Ke Wang; Zhiguo Ye; Chenqi Liu; Dan Xi; Chongjian Zhou; Zhongqi Shi; Hongyan Xia; Guiwu Liu; Guanjun Qiao

doi:10.1021/acsami.5b10835

Morphology-Controllable Synthesis of Cobalt Telluride Branched Nanostructures on Carbon Fiber Paper as Electrocatalysts for Hydrogen Evolution Reaction

ACS Appl Mater Interfaces. 2016 Feb 10;8(5):2910-6. doi: 10.1021/acsami.5b10835. Epub 2016 Jan 27.

Authors

Ke Wang¹, Zhiguo Ye², Chenqi Liu¹, Dan Xi¹, Chongjian Zhou¹, Zhongqi Shi¹, Hongyan Xia¹, Guiwu Liu³, Guanjun Qiao^{1

3}

Affiliations

¹ State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China.
² School of Materials Science and Engineering, Nanchang Hangkong Univerisity , Nanchang 330063, China.
³ School of Materials Science and Engineering, Jiangsu University , Zhenjiang 212013, China.

PMID: 26809181
DOI: 10.1021/acsami.5b10835

Abstract

Cobalt telluride branched nanostructures on carbon fiber paper (CFP) with two different morphologies were synthesized via solution-based conversion reaction. Both the CoTe2 with nanodendrite and CoTe with nanosheet morphologies on the CoTe2 nanotube (CoTe2 NDs/CoTe2 NTs and CoTe NSs/CoTe2 NTs) supported by CFP exhibit high activities toward hydrogen evolution reaction (HER). Particularly, the CoTe NSs/CoTe2 NTs only require an overpotential of 230.0 mV to deliver the current density of 100 mA cm(-2) in acid solution. After cycling for 5000 cycles or 20 h continual electrolysis, only a small performance loss is observed.

Keywords: branched nanowire; carbon fiber paper; cobalt telluride; core−shell; electrocatalyst; hydrogen evolution reaction.

Publication types

Letter
Research Support, Non-U.S. Gov't