The Heterostructure of MoS2 and CoMoO4 for Efficient Oxygen Evolution Reaction at High Current Densities.

Junjie Zheng; Chengcheng Yang

doi:10.6919/ICJE.202505_11(5).0030

Authors

Junjie Zheng
Chengcheng Yang

DOI:

https://doi.org/10.6919/ICJE.202505_11(5).0030

Keywords:

Oxygen Evolution Reaction; Heterostructure; Transition Metal; Electrochemistry.

Abstract

To investigate the OER performance of MoS₂-based composite electrocatalysts at high current densities, a MoS₂@CoMoO₄/CC heterostructured electrocatalyst was successfully constructed via a two-step hydrothermal method. Characterization results demonstrate that the three-dimensional porous architecture composed of ultrasmall nanosheets significantly increases the electrode's effective surface area while facilitating rapid electrolyte penetration, thereby ensuring optimal contact between reactants and electrocatalytic active sites. The formed MoS₂/CoMoO₄ heterointerface promotes interfacial charge transfer and accelerates electron migration, effectively reducing the energy barrier for electrochemical reactions. Consequently, the MoS₂@CoMoO₄/CC exhibits exceptional OER performance at high current densities.

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