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

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• 作者：Ke Wang ; Zhiguo Ye ; Chenqi Liu ; Dan Xi ; Chongjian Zhou ; Zhongqi Shi ; Hongyan Xia ; Guiwu Liu ; Guanjun Qiao
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：February 10, 2016
• 年：2016
• 卷：8
• 期：5
• 页码：2910-2916
• 全文大小：539K
• ISSN：1944-8252

文摘

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.