Abstract
To enhance the intrinsic activity and the density of active sites of the electrocatalyst for the hydrogen evolution reaction (HER), the microwave-assisted synthesis is adopted to prepare hierarchical Ce-doped MoSe2@CNTs as highly-efficient catalysts for HER in both acidic and alkaline conditions. The well-defined hierarchical nanostructure of Ce-doped MoSe2 on multiple carbon nanotubes (MWCNTs) with few layers of MoSe2 nanostructure. The Ce-MoSe2@CNTs sample with an optimal proportion of Ce:Mo (1:5) exhibits outstanding activity and long-term stability in both acidic and alkaline electrolyte. It shows an overpotential of 108 and 166 mV at 10 mA cm−2 in acidic and alkaline electrolyte, respectively. This study offers a prospective opportunity to design and fabricate the highly-effective catalysts coupling with multiple synergistic effect for efficient electrocatalysts.
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