Recent Strategies for Improving the Catalytic Activity of 2D TMD Nanosheets Toward the Hydrogen Evolution Reaction

Two‐dimensional (2D) transition‐metal dichalcogenide (TMD) nanosheets have emerged as a fascinating new class of materials for catalysis. These nanosheets are active for several important catalysis reactions including hydrogen evolution from water. The rich chemistry of TMDs combined with numerous strategies that allow tuning of their electronic properties make these materials very attractive for understanding the fundamental principles of electro‐ and photocatalysis, as well as for developing highly efficient, renewable, and affordable catalysts for large‐scale production of hydrogen. Recent developments are highlighted and important challenges in using TMDs as catalysts are also discussed. Transition metal dichalcogenide (TMD) nanosheets are promising catalysts for evolution of hydrogen. TMDs possess a wide range of electronic and catalytic properties so that important fundamental parameters related to catalysis can be investigated. Recent progress on the study of 2D TMD nanosheets for enhancing their electro‐ and photocatalytic activity is discussed.