title: Visible-Light-Driven Selective Photocatalytic Hydrogenation of Cinnamaldehyde over Au/SiC Catalysts.
abstract: Highly selective hydrogenation of cinnamaldehyde to cinnamyl alcohol with 2-propanol was achieved using SiC-supported Au nanoparticles as photocatalyst. The hydrogenation reached a turnover frequency as high as 487 h(-1) with 100% selectivity for the production of alcohol under visible light irradiation at 20 °C. This high performance is attributed to a synergistic effect of localized surface plasmon resonance of Au NPs and charge transfer across the SiC/Au interface. The charged metal surface facilitates the oxidation of 2-propanol to form acetone, while the electron and steric effects at the interface favor the preferred end-adsorption of α,β-unsaturated aldehydes for their selective conversion to unsaturated alcohols. We show that this Au/SiC photocatalyst is capable of hydrogenating a large variety of α,β-unsaturated aldehydes to their corresponding unsaturated alcohols with high conversion and selectivity.
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.|University of the Chinese Academy of Sciences , Beijing 100039, P. R. China.
authors.forename: Cai-Hong
authors.initials: CH
authors.lastname: Hao
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Guo
authors.affiliation: Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign , 206 Roger Adams Laboratory, MC-712, 600 South Mathews Avenue, Urbana, Illinois 61801, United States.
authors.forename: Yung-Tin
authors.initials: YT
authors.lastname: Pan
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.
authors.forename: Shuai
authors.initials: S
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.|University of the Chinese Academy of Sciences , Beijing 100039, P. R. China.
authors.forename: Zhi-Feng
authors.initials: ZF
authors.lastname: Jiao
authors.affiliation: Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign , 206 Roger Adams Laboratory, MC-712, 600 South Mathews Avenue, Urbana, Illinois 61801, United States.
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan, Shanxi 030001, P. R. China.
authors.forename: Xiang-Yun
authors.initials: XY
authors.lastname: Guo