Carbon-coated Co-Mo-P nanosheets supported on carbon cloth as efficient electrocatalyst for Hydrogen Evolution Reaction

Exploration of noble-metal-free, highly-efficient and durable catalysts for Hydrogen evolution reaction (HER) remains a challenge. In this work, the development of carbon-coated cobalt-molybdenum-phosphide nanosheets supported on carbon cloth (Co-Mo-P@C) is successfully demonstrated. To obtain a better electrocatalystic performance, the different amount of glucose was added into the reaction system during hydrothermal process. Benefiting from the 2D structure, high electrical conductivity and sufficient active sites, the Co-Mo-P@C contained 0.5 mmol glucose exhibits relatively good catalytic activity for HER with low over poentials at −96 mV and −162 mV @ 10 mA cm −2 in acidic and alkaline medias respectively and the Tafel slope of 52.9 mV dec −1 and 34.3 mV dec −1 . Additionally, the catalyst also shows good durability in the both electrolytes.