title: 3D Cathodes of Cupric Oxide Nanosheets Coated onto Macroporous Antimony-Doped Tin Oxide for Photoelectrochemical Water Splitting.
abstract: Cupric oxide (CuO), a narrow-bandgap semiconductor, has a band alignment that makes it an ideal photocathode for the renewable production of solar fuels. However, the photoelectrochemical performance of CuO is limited by its poor conductivity and short electron diffusion lengths. Herein, a three-dimensional (3D) architecture consisting of CuO nanosheets supported onto transparent conducting macroporous antimony-doped tin oxide (mpATO@CuONSs) is designed as an excellent photocathode for promoting the hydrogen evolution reaction (HER). Owing to the 3D structure affording superior light-harvesting characteristics, large contact areas with the electrolyte, and highly conductive pathways for separation and transport of charge carriers, the mpATO@CuONSs photocathode produces an impressively high photocurrent density of -4.6 mA cm-2at 0 V versus the reversible hydrogen electrode (RHE), which is much higher than that of the CuONSs array onto planar FTO glass (-1.9 mA cm-2).
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
authors.forename: Xu-Dong
authors.initials: XD
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
authors.forename: Yang-Fan
authors.initials: YF
authors.lastname: Xu
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
authors.forename: Bai-Xue
authors.initials: BX
authors.lastname: Chen
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
authors.forename: Ning
authors.initials: N
authors.lastname: Zhou
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China. chenhy33@mail.sysu.edu.cn.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Chen
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China. kuangdb@mail.sysu.edu.cn.
authors.forename: Dai-Bin
authors.initials: DB
authors.lastname: Kuang
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
authors.forename: Cheng-Yong
authors.initials: CY
authors.lastname: Su
mesh_terms: D000965:Antimony / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D055664:Electrochemical Techniques; D004566:Electrodes; D008854:Microscopy, Electron; D049329:Nanostructures / Q000737:chemistry*; D055668:Photochemical Processes; D016062:Porosity; D017971:Tin Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D017971:Tin Compounds; D014867:Water; D003300:Copper; D000965:Antimony; C045358:stannic oxide; C030973:cupric oxide
keywords: copper; doping; metal oxides; photocathodes; water splitting