Novel amorphous molybdenum selenide as an efficient catalyst for the hydrogen evolution reaction.

Author(s) Nguyen, Q.T.; Nguyen, P.Dinh; Nguyen, D.N.; Truong, Q.Duc; Chi, T.Thi Kim; Ung, T.; Honma, I.; Liem, N.Quang; Tran, P.D.
Journal ACS Appl Mater Interfaces
Date Published 2018 Feb 09

Amorphous molybdenum selenide nanopowder, obtained by refluxing Mo(CO)6 and Se precursors in dichlorobenzene, shows several structural and electrochemical similarities to the amorphous molybdenum sulfide analogue. The molybdenum selenide displays attractive catalytic properties for the hydrogen evolution reaction in water over a wide range of pH. In a pH 0 solution, it operates with a small onset overpotential of 125 mV and requires an overpotential of 270 mV for generating a catalytic current of 10 mA/cm2. Compared with the molybdenum sulfide, the selenide analogue is more robust in a basic electrolyte. Therefore, the molybdenum selenide is a potential candidate for incorporating within an electrolyser or a photoelectrochemical cell for water electrolysis either in acidic, neutral or alkaline medium.

DOI 10.1021/acsami.7b18675
ISSN 1944-8252
Citation ACS Appl Mater Interfaces. 2018.

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