CoSe<sub>2</sub> Nanoparticles Grown on Carbon Fiber
Paper: An Efficient and Stable Electrocatalyst for Hydrogen Evolution
Reaction
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Abstract
Development
of a non-noble-metal hydrogen-producing catalyst is
essential to the development of solar water-splitting devices. Improving
both the activity and the stability of the catalyst remains a key
challenge. In this Communication, we describe a two-step reaction
for preparing three-dimensional electrodes composed of CoSe<sub>2</sub> nanoparticles grown on carbon fiber paper. The electrode exhibits
excellent catalytic activity for a hydrogen evolution reaction in
an acidic electrolyte (100 mA/cm<sup>2</sup> at an overpotential of
∼180 mV). Stability tests though long-term potential cycles
and extended electrolysis confirm the exceptional durability of the
catalyst. This development offers an attractive catalyst material
for large-scale water-splitting technology