Chemical Research in Chinese Universities ›› 2016, Vol. 32 ›› Issue (6): 1016-1018.doi: 10.1007/s40242-016-6107-5

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Carbon-covered Tungsten Carbide Nanoparticles: Solid-state Synthesis and Application as Stable Electrocatalysts for the Hydrogen Evolution Reaction

ZHANG Xuena1, ZHONG Xinwen1, YANG Zhe2, SONG Jiapeng3, LU Haiyan2   

  1. 1. Jilin Police College, Changchun 130117, P. R. China;
    2. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    3. Training Center of Jilin Electric Power Co., Ltd., Changchun 130012, P. R. China
  • Received:2016-03-23 Revised:2016-06-03 Online:2016-12-01 Published:2016-06-20
  • Contact: LU Haiyan, E-mail:luhy@jlu.edu.cn E-mail:luhy@jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.21273097).

Abstract:

Carbon-covered tungsten carbide nanoparticles(cc-WCNPs) were prepared via a one-step solid-state reaction between W(CO)6 and triphenylamine at 850℃ under a sealed Ar atmosphere. As novel electrocatalysts for the hydrogen evolution reaction(HER), cc-WCNPs exhibit an onset potential of -0.14 V vs. reversible hydrogen electrode(RHE) and a Tafel slope of 64.6 mV/dec in a 0.5 mol/L H2SO4 solution. Additionally, these cc-WCNPs catalysts also show excellent electrocatalytic stability after 1000 cycles.

Key words: Hydrogen evolution reaction, Solid-state synthesis, Nanoparticle, Electrocatalysis