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High-performance tungsten carbide electrocatalysts for the hydrogen evolution reaction

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Abstract

High charge transport efficiency and large specific surface are two critical factors for the hydrogen evolution reaction. In this work, we report a simple method to fabricate tungsten carbide (WC) on W foil through a carbonization reaction at high temperature. WC nanoparticles with high conductivity form chemical bonds with W foil, thereby significantly minimizing the contact resistance between the catalyst (WC) and electrode (W foil). As an outstanding hydrogen evolution cathode, the WC/W electrode exhibits high HER activity with overpotentials of 87 mV and 68 mV to drive a current density of 10 mA cm−2 in 0.5 M H2SO4 and 1 M KOH, respectively.

Graphical abstract: High-performance tungsten carbide electrocatalysts for the hydrogen evolution reaction

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Article information


Submitted
25 Sep 2019
Accepted
13 Dec 2019
First published
13 Dec 2019

Sustainable Energy Fuels, 2020, Advance Article
Article type
Communication

High-performance tungsten carbide electrocatalysts for the hydrogen evolution reaction

J. Huang, W. Hong, J. Li, B. Wang and W. Liu, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE00853E

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