Electrocatalytic hydrogen evolution using amorphous tungsten phosphide nanoparticles

Amorphous tungsten phosphide (WP), which has been synthesized as colloidal nanoparticles with an average diameter of 3 nm, has been identified as a new electrocatalyst for the hydrogen-evolution reaction (HER) in acidic aqueous solutions. WP/Ti electrodes produced current densities of -10 mA cm(-2)...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2014-09, Vol.50 (75), p.11026-11028
Main Authors: McEnaney, Joshua M, Crompton, J Chance, Callejas, Juan F, Popczun, Eric J, Read, Carlos G, Lewis, Nathan S, Schaak, Raymond E
Format: Article
Language:English
Subjects:
Aqueous solutions
Current density
Electrocatalysts
Electrodes
Hydrogen evolution
Nanoparticles
Phosphides
Tungsten
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Summary:Amorphous tungsten phosphide (WP), which has been synthesized as colloidal nanoparticles with an average diameter of 3 nm, has been identified as a new electrocatalyst for the hydrogen-evolution reaction (HER) in acidic aqueous solutions. WP/Ti electrodes produced current densities of -10 mA cm(-2) and -20 mA cm(-2) at overpotentials of only -120 mV and -140 mV, respectively, in 0.50 M H2SO4(aq).
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc04709e