Hydrogen evolution reaction (HER) is of great interest in energy conversion and storage technologies. Despite electric energy and solar energy could be utilized to drive the reduction of protons to hydrogen in water splitting process, such reaction is energy-intensive due to low efficiency. Catalysts are required to reduce energy consumption and/or increase efficiency. MoS2 is known as a promising HER electrocatalyst, but its catalytic activity is far inferior to that of Pt. Ion doping can modify the molecular orbital electronic structure of MoS2, tuning hydrogen adsorption and consequently altering electrocatalytic performance. The introduction of the third element can also change the surface state of MoS2, such as active site population, roughness, and hydrophilicity. Herein, anion doping strategy is adopted to improve the electrocatalytic properties of MoS2. Different anion-doped MoS2 materials are synthesized and compared. Combining theoretical calculation, we demonstrate the trends in their electrocatalytic activity.

Enhancing electrocatalytic properties of molybdenum disulfide for hydrogen evolution reaction via anion doping

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.