Issue 4, 2022

A concise discussion on MoS2 basal plane activation toward the ennoblement of electrocatalytic HER output

Abstract

Over the last decades, MoS2, being a member of the transition metal dichalcogenide family, is the second most extensively studied 2D-material, followed by graphene. Owing to its distinct electronic structure and outstanding physical and chemical properties. Being a widely used semiconductor material, some directions of its applications are still limited. The semiconducting 2H-phase of MoS2 shows less catalytic activity due to the presence of a large number of chemically inert basal planes, whereas the metallic 1T-phase of MoS2, which exhibits higher catalytic activity, cannot be furnished on a large scale due to the stabilization issue. Taking these demerits into consideration, the current researchers are highly dedicated to ameliorating the catalytic performance of MoS2 by activating the chemically inert basal planes of MoS2. There occurs a generation of new catalytic active centers on the basal plane of MoS2 in addition to its active edge sites, which elevates its catalytic activity, i.e., electrocatalytic HER. In view of this, the current review sheds light on several methodologies for the activation of inert basal plane of MoS2 including doping, etching, creating sulphur vacancies, and pores, which is of great importance toward boosting the catalytic execution of MoS2.

Graphical abstract: A concise discussion on MoS2 basal plane activation toward the ennoblement of electrocatalytic HER output

Article information

Article type
Review Article
Submitted
22 10 2021
Accepted
28 12 2021
First published
19 1 2022

Sustainable Energy Fuels, 2022,6, 937-953

A concise discussion on MoS2 basal plane activation toward the ennoblement of electrocatalytic HER output

S. Das, G. Swain and K. Parida, Sustainable Energy Fuels, 2022, 6, 937 DOI: 10.1039/D1SE01690C

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