Metallic-phase of MoS2 as potential electrocatalyst for hydrogen production via water splitting: A brief review

Metallic polymorph of MoS2 (1T-MoS2) is an emerging and highly promising electrocatalyst owing to its high intrinsic conductivity, large interlayer spacing, hydrophilic surface, high specific surface area, faster in-plane charge transfer, and lower energy barrier for hydrogen adsorption and desorption. This article discusses a brief overview of electrocatalytic property evolutions of metallic 1T-MoS2 for its application in electrocatalytic hydrogen production via water splitting. A summary is presented on various techniques that have been reported to date for developing the 1T-MoS2 phase and their efficacy towards electrocatalytic hydrogen generation. This review also explains the thermodynamic parameter dependence of electrocatalytic enhancements of metallic MoS2 with state-of-the-art theoretical reasoning and experimental details.