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Carbon-covered Tungsten Carbide Nanoparticles: Solid-state Synthesis and Application as Stable Electrocatalysts for the Hydrogen Evolution Reaction |
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| Authors: | ZHANG Xuena ZHONG Xinwen YANG Zhe SONG Jiapeng LU Haiyan |
| Affiliation: | 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 |
| 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. |
| Keywords: | Hydrogen evolution reaction Solid-state synthesis Nanoparticle Electrocatalysis |
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