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Tungsten carbide as electrocatalyst for the hydrogen evolution reaction in pH neutral electrolyte solutions

Paper ID Volume ID Publish Year Pages File Format Full-Text
47796 46482 2009 4 PDF Available
Title
Tungsten carbide as electrocatalyst for the hydrogen evolution reaction in pH neutral electrolyte solutions
Abstract

In this communication we demonstrate that tungsten carbide, WC, is a promising electrocatalyst for the hydrogen evolution reaction in pH neutral electrolytes. In a systematic investigation of mixed catalysts containing different fractions of WC, W2C, W and WO2 we show that the performance of the catalyst is proportional to its WC content, whereas W2C, W and WO2 play only a minor role. The relationship between WC content and electrocatalytic activity indicates that hydrogen evolution and oxidation are related to similar surface sites preferentially formed on WC. In contrast to anodic conditions, the cathodic polarization diminishes corrosion processes and thus increases the long term stability.

Keywords
Biofuel cells; Microbial fuel cells; Microbial electrolysis cell; Hydrogen evolution reaction; Electrocatalysis; Tungsten carbide
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Tungsten carbide as electrocatalyst for the hydrogen evolution reaction in pH neutral electrolyte solutions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 89, Issues 3–4, 15 July 2009, Pages 455–458
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us