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- Title
3D Cathodes of Cupric Oxide Nanosheets Coated onto Macroporous Antimony-Doped Tin Oxide for Photoelectrochemical Water Splitting.
- Authors
Wang, Xu‐Dong; Xu, Yang‐Fan; Chen, Bai‐Xue; Zhou, Ning; Chen, Hong‐Yan; Kuang, Dai‐Bin; Su, Cheng‐Yong
- 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 antimonydoped 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 mAcm-2 at 0 V versus the reversible hydrogen electrode (RHE), which is much higher than that of the CuONSs array onto planar FTO glass (-1.9 mAcm-2).
- Subjects
CATHODES; MACROPOROUS polymers; TIN oxides; WATER electrolysis; STANDARD hydrogen electrode
- Publication
ChemSusChem, 2016, Vol 9, Issue 20, p3012
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.201601140