Novel Amorphous Molybdenum Selenide as an Efficient Catalyst for Hydrogen Evolution Reaction

Quyen T. Nguyen, Phuc D. Nguyen, Duc Nguyen, Quang Duc Truong, Tran Thi Kim Chi, Thuy Thi Dieu Ung, Itaru Honma, Nguyen Quang Liem, Phong D. Tran

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)

    Abstract

    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 molybdenum sulfide, the selenide analogue is more robust in a basic electrolyte. Therefore, molybdenum selenide is a potential candidate for incorporating within an electrolyzer or a photoelectrochemical cell for water electrolysis in acidic, neutral, or alkaline medium.

    Original languageEnglish
    Pages (from-to)8659-8665
    Number of pages7
    JournalACS Applied Materials and Interfaces
    Volume10
    Issue number10
    DOIs
    Publication statusPublished - 2018 Mar 14

    Keywords

    • catalysis
    • cluster
    • hydrogen
    • molybdenum selenide
    • water electrolysis

    ASJC Scopus subject areas

    • Materials Science(all)

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