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Catalysts 2016, 6(12), 208; doi:10.3390/catal6120208

Hydrogen Evolution Reaction of γ-Mo0.5W0.5 C Achieved by High Pressure High Temperature Synthesis

1
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing 210093, China
2
State Key Lab of Superhard Materials, College of Physics, Jilin University, 2699 Qianjin Street, Changchun 130012, China
3
Jiangsu Key Laboratory for Nano Technology, Department of Physics, Nanjing University, 22 Hankou Road, Nanjing 210093, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Di-Jia Liu and Jianguo Liu
Received: 30 October 2016 / Revised: 2 December 2016 / Accepted: 5 December 2016 / Published: 17 December 2016
(This article belongs to the Special Issue Heterogeneous Catalysis & Hydrogen Storage)
View Full-Text   |   Download PDF [4759 KB, uploaded 17 December 2016]   |  

Abstract

For the first time, the hydrogen evolution reaction (HER) electrocatalytic performances of incompressible γ-Mo0.5W0.5C, prepared by high-pressure, high-temperature (HPHT) synthesis, were investigated in the electrolyte. The polarization curve of the γ-Mo0.5W0.5C cathode exhibits the current density of 50 mA∙cm−2 at an overpotential value of 320 mV. The corresponding Tafel slope of the incompressible γ-Mo0.5W0.5C is 74 mV∙dec−1. After a 1000-cycle test, and then exposure to the air for six months, the γ-Mo0.5W0.5C electrode performed a current density of 50 mA∙cm−2 at an overpotential of 354 mV, which was close to the initial one. View Full-Text
Keywords: hydrogen evolution reaction; incompressible; high pressure high temperature synthesis; transition metal carbides hydrogen evolution reaction; incompressible; high pressure high temperature synthesis; transition metal carbides
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hu, Y.; Jia, G.; Ma, S.; Hu, J.; Zhu, P.; Cui, T.; Li, Z.; Zou, Z. Hydrogen Evolution Reaction of γ-Mo0.5W0.5 C Achieved by High Pressure High Temperature Synthesis. Catalysts 2016, 6, 208.

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