Highly Efficient Hydrogen Evolution Reaction Using Crystalline Layered Three-Dimensional Molybdenum Disulfides Grown on Graphene Film

作者：Behranginia Amirhossein; Asadi Mohammad; Liu Cong; Yasaei Poya; Kumar Bijandra; Phillips Patrick; Foroozan Tara; Waranius Joseph C; Kim Kibum; Abiade Jeremiah; Klie Robert F; Curtiss Larry A; Salehi Khojin Amin

来源：Chemistry of Materials, 2016, 28(2): 549-555.

DOI：10.1021/acs.chemmater.5b03997

Electrochemistry is central to applications in the field of energy storage and generation. However, it has advanced far more slowly over the last two decades, mainly because of a lack of suitable and affordable catalysts. Here, we report the synthesis of highly crystalline layered three-dimensional (3D) molybdenum disulfide (MoS2) catalysts with bare Mo-edge atoms and demonstrate their remarkable performance for the hydrogen evolution reaction (HER). We found that Mo-edge-terminated 3D MoS2 directly grown on graphene film exhibits a remarkable exchange current density (18.2 mu A cm(-2)) and turnover frequency (>4 S-1) for HER. The obtained exchange current density is 15.2 and 2.3 times higher than that of MoS2/graphene and MoS2/Au catalysts, respectively, both with sulfided Mo-edge atoms. An easily scalable and robust growth process on a wide variety of substrates, along with prolonged stability, suggests that this material is a promising catalyst in energy-related applications.

• 出版日期2016-1-26