title: Mo2 C as Non-Noble Metal Co-Catalyst in Mo2 C/CdS Composite for Enhanced Photocatalytic H2 Evolution under Visible Light Irradiation.
abstract: Co-catalysts are a major factor to enhance photocatalytic H2 activity; they are mainly composed of expensive noble metals. Here, we reported a new non-noble-metal co-catalyst Mo2 C that efficiently improves the photocatalytic H2 evolution of CdS under visible light irradiation. Mo2 C is prepared by temperature-programmed reaction with molybdenum oxide as precursor, and the Mo2 C/CdS composite is prepared by deposition of CdS on Mo2 C. The optimum composite 2.0 % Mo2 C/CdS shows a high H2 evolution rate of 161 μmol h(-1) , which is ten times higher than that of CdS alone and 2.3 times higher than the optimum for 1.0 % Pt/CdS. Moreover, the Mo2 C/CdS is stable for 50 h. This study presents a new low-cost non-noble-metal co-catalyst as a photocatalyst to achieve highly efficient H2 evolution.
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China. bjma@nxu.edu.cn.
authors.forename: Baojun
authors.initials: B
authors.lastname: Ma
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China.
authors.forename: Haojie
authors.initials: H
authors.lastname: Xu
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China.
authors.forename: Keying
authors.initials: K
authors.lastname: Lin
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China.
authors.forename: Haijuan
authors.initials: H
authors.lastname: Zhan
authors.affiliation: State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry & chemical engineering, Ningxia University, Yinchuan, 750021, PR China.
authors.forename: Wanyi
authors.initials: W
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O. Box 110, 116023, Dalian, PR China. canli@dicp.ac.cn.
authors.forename: Can
authors.initials: C
authors.lastname: Li
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry* / Q000528:radiation effects; D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D008027:Light; D008982:Molybdenum / Q000737:chemistry* / Q000528:radiation effects; D018036:Selenium Compounds / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D019187:Cadmium Compounds; D018036:Selenium Compounds; C574181:molybdenum carbide; D006859:Hydrogen; D008982:Molybdenum; C058667:cadmium selenide
keywords: co-catalysts; hydrogen evolution; molybdenum carbide; non-noble metal; water splitting