4.7 Article

Electrocatalytic hydrogen evolution using amorphous tungsten phosphide nanoparticles

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 75, Pages 11026-11028

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc04709e

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Funding

  1. PSU by the National Science Foundation (NSF) Center for Chemical Innovation on Solar Fuels [CHE-1305124]
  2. Caltech by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub through Office of Science of the U.S. Department of Energy [DE-SC0004993]

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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).

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