N-doped carbon-coated tungsten oxynitride nanowire arrays for highly efficient electrochemical hydrogen evolution

Qun Li; Wei Cui; Jingqi Tian; Zhicai Xing; Qian Liu; Wei Xing; Abdullah M Asiri; Xuping Sun

doi:10.1002/cssc.201500398

N-doped carbon-coated tungsten oxynitride nanowire arrays for highly efficient electrochemical hydrogen evolution

ChemSusChem. 2015 Aug 10;8(15):2487-91. doi: 10.1002/cssc.201500398. Epub 2015 Jun 29.

Authors

Qun Li^{1

2}, Wei Cui^{1

2}, Jingqi Tian^{1

2}, Zhicai Xing¹, Qian Liu¹, Wei Xing³, Abdullah M Asiri⁴, Xuping Sun^{5

6}

Affiliations

¹ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin (PR China).
² University of the Chinese Academy of Sciences, Beijing 100049 (PR China).
³ Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin (PR China).
⁴ Chemistry Department & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589 (Saudi Arabia).
⁵ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin (PR China). sunxp@ciac.ac.cn.
⁶ Chemistry Department & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589 (Saudi Arabia). sunxp@ciac.ac.cn.

PMID: 26121606
DOI: 10.1002/cssc.201500398

Abstract

It is highly desired but still challenging to develop active nonprecious metal hydrogen evolution reaction (HER) electrocatalysts operating under all pH conditions. Herein, the development of three-dimensional N-doped carbon-coated tungsten oxynitride nanowire arrays on carbon cloth as a highly efficient and durable HER cathode was explored. The material delivers current densities of 10 and 100 mA cm(-2) at overpotentials of 106 and 172 mV, respectively, in acidic medium, and it also performs well in neutral and basic electrolytes.

Keywords: doping; hydrogen evolution reaction; nanowire arrays; pH value; tungsten oxynitride.

Publication types

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

MeSH terms

Carbon / chemistry*
Electrochemistry
Hydrogen / chemistry*
Nanowires / chemistry*
Nitrogen / chemistry*
Tungsten Compounds / chemistry*

Substances

Tungsten Compounds
Carbon
Hydrogen
Nitrogen