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Co-doped amorphous MoSx for efficient hydrogen evolution reaction in acid condition
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Co-doped amorphous MoSx for efficient hydrogen evolution reaction in acid condition
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Journal Article
Co-doped amorphous MoSx for efficient hydrogen evolution reaction in acid condition
2023
Overview
Amorphous molybdenum sulfide (MoS
x
) has been regarded as a promising hydrogen evolution reaction (HER) catalyst due to its mild preparation conditions and low-cost precursor materials. In this work, we report a simple strategy combining the growth of amorphous MoS
x
on the surface of metal organic frameworks (ZIF-67) and annealing treatment to prepare Co-doped MoS
x
nanopolyhedrons (denoted as CoMoS
x
NPs). The CoMoS
x
NPs exhibit excellent HER activity in acid condition with an overpotential of 188 mV at a current density of 10 mA cm
−2
(η
10
), and a relatively stable overpotential after 2000 cyclic voltammetry (CV) cycles testing. The excellent HER performance of the CoMoS
x
NPs can be attributed to the doping of Co element adjust the electronic structure and increase the conductivity of catalyst, and the nanopolyhedrons structure which can expose more active sites for HER electrocatalytic. This study offers a low-cost and simple strategy to prepare high-activity HER catalyst, which holds great promises in developing advanced electrocatalysts for energy storage.
Publisher
Springer Nature Singapore,Springer Nature B.V
