文献类型：期刊文献

英文题名：Black Ni-doped TiO2 photoanodes for high-efficiency photoelectrochemical water-splitting

作者：Liu, Qiang[1];Ding, Dongyan[1];Ning, Congqin[2];Wang, Xuewu[3]

机构：[1]Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Inst Microelect Mat & Technol, Shanghai 200240, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China;[3]E China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：40

期号：5

起止页码：2107

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20150400442393);WOS:【SCI-EXPANDED(收录号:WOS:000349579200005)】；

基金：This work was supported by Shanghai Pujiang Program (No. 07pj14047). We thank the contribution from SEM lab at Instrumental Analysis Center of SJTU.

语种：英文

外文关键词：Black TiO2; Ni doping; Photoanodes; Photocatalytic

摘要：Photocatalysis is a promising solar energy conversion technique. Here we report a simple but efficient way to fabricate black Ni-doped TiO2 photoanodes for photoelectrochemical water-splitting. The black Ni-doped TiO2 photoanodes were fabricated through anodization for nanotube growth and one-step tin metal reduction in argon atmosphere. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Raman spectra were used to characterize the black Ni-doped TiO2 photoanodes. The black Ni-doped TiO2 photoanodes presented large amounts of Ti3+ and oxygen vacancy, which ensured high capability of absorbing visible and infrared light. The black Ni-doped TiO2 photoanodes exhibited an excellent and stable photocatalytic activity compared to undoped TiO2 photoanode. The maximum photoconversion efficiency of the black Ni-doped TiO2 photoanodes was 2.95% at -0.56 V vs Ag/AgCl, which was almost ten times as high as that of the undoped TiO2 photoanode. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.