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Photocatalytic Hydrogen Evolution over Rh Quantum Dots Loaded on 3D Graphene under Visible Light Irradiation
Author NameAffiliationE-mail
ZHEN Wen-Long State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China  
GAO Hai-Bo State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China 
 
LÜ Gong-Xuan State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, China gxlu@lzb.ac.cn 
MA Jian-Tai College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China  
Abstract: Based on the two-dimensional graphene's flexible properties, we constructed the 3D graphene with topological structure, and loaded the Rh QDs on it to prepare the Rh QDs/3DGR catalyst, which was used for the photocatalytic hydrogen production reaction. The topological structure of 3D graphene could eliminate anisotropy of electrons and promote the electrons transfer in the graphene layers, which improved the electron transfer rate and the activity and stability of catalyst. The amount of H2 reached 794.2 μmol in 120 min over EY-sensitized Rh/3DGR catalyst, and the corresponding AQE was 12.6% (520 nm). In addition, the Rh/3DGR catalyst showed the largest transient photocurrent, the lowest overpotential (-0.34 V) and the longest fluorescence lifetime (1.37 ns).
Keywords: 3D graphene  Rh QDs  photocatalytic hydrogen generation  topological structure
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ZHEN Wen-Long,GAO Hai-Bo,LÜ Gong-Xuan,MA Jian-Tai.Photocatalytic Hydrogen Evolution over Rh Quantum Dots Loaded on 3D Graphene under Visible Light Irradiation[J].Chinese Journal of Inorganic Chemistry,2018,34(1):20-32.
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Chinese Journal of Inorganic Chemistry