Molecular engineering strategies toward molybdenum diselenide design for energy storage and conversion

The development of graphene has readily accelerated the research progress on 2D materials. As a representative 2D family, transition metal dichalcogenides are widely used in the realms of energy storage and conversion. In particular, molybdenum diselenide (MoSe${}_2$) has captured widespread interests owing to its unique physical and chemical properties and remarkable potential in energy applications. Nevertheless, typically, the electrochemical property of pristine MoSe${}_2$ does not meet the expectations, which necessitates the exploration and applications of proper modification strategies to achieve its full potential. Herein, several state-of-the-art molecular engineering strategies are summarized, and their energy-oriented applications are described. Furthermore, insightful information on the significance of molecular engineering methods in improving the electrochemical properties of MoSe${}_2$ and perspectives on the future developments of MoSe${}_2$ are presented. It is anticipated that the research community can use the information in this review to improve the electrochemical properties of MoSe${}_2$ targeting practical application scenarios. (© 2022 Wiley‐VCH GmbH)