期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 8, 页码 3077-3081出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta07055d
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资金
- National Science Foundation (NSF) Center for Chemical Innovation in Solar Fuels [CHE-1305124]
The efficient catalysis of water electrolysis using Earth-abundant materials is considered to underpin the large-scale implementation of several clean energy technologies. Here, we report the synthesis of molybdenum rich Co-Mo nanoparticles, which function as highly active and stable electrocatalysts for the hydrogen evolution reaction (HER) in alkaline aqueous solutions. The Co-Mo nanoparticles have an average diameter of approx. 3 nm, a Co : Mo ratio of approx. 1 : 9, and are poorly crystalline. The Co-Mo nanoparticles deposited onto Ti foil substrates at a loading of approx. 1 mg cm(-2) required an overpotential of only -75 mV to produce an operationally relevant current density of -10 mA cm(-2), placing them among the most highly active Earth-abundant HER catalysts in alkaline media.
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