Efficient Charge Separation of In-Situ Nb-Doped TiO2 Nanowires for Photoelectrochemical Water-splitting

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 高性能陶瓷和超微结构国家重点实验室 > 期刊论文

	Efficient Charge Separation of In-Situ Nb-Doped TiO2 Nanowires for Photoelectrochemical Water-splitting
	Tian, Zhangliu 1,2; Cui, Houlei 1; Xu, Jijian 1; Zhu, Guilian 1; Shao, Feng 1; He, Jianqiao 2; Huang, Fuqiang 1
刊名	CHEMISTRYSELECT
	2017-03-23
卷号	2 期号:9 页码:2822-2827
关键词	charge separation efficiencies Nb doping TiO2 water-splitting
英文摘要	One-dimensional TiO2 nanowire is the top-performing semiconductor among photoanodes for photoelectrochemical water splitting, but still limited to a fraction of the theoretically photocurrent because of modest charge transport and low charge separation properties. Here, we demonstrate high-crystallized nanowires of Nb-doped rutile TiO2 for significantly increasing electron carrier density through a convenient method. The optimized Nb-doped TiO2 nanowires (0.5mol% in the Nb/Ti ratio) yield a high value of charge separation efficiency (eta(sep)) of 97.39% at 1.23 V-RHE, which is about 3 times as much as that of pristine sample (33.61% at 1.23 V-RHE). Moreover, the photoanode of Nb-doped TiO2 nanowires can achieve high charge transfer efficiency (eta(trans)) (91.07% at 1.23 V-RHE) without any oxygen evolution reaction catalysts. These results indicate that through appropriate amount of Nb doping can move the performance of TiO2 nanowires to their theoretical potential.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	SENSITIZED SOLAR-CELLS ; ELECTRONIC-STRUCTURE ; ANATASE ; OXIDATION ; PHOTOANODE ; NANOTUBES ; NIOBIUM ; ARRAYS ; RUTILE
收录类别	SCI
语种	英语
WOS记录号	WOS:000398581000027
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23690]
专题	上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tian, Zhangliu,Cui, Houlei,Xu, Jijian,et al. Efficient Charge Separation of In-Situ Nb-Doped TiO2 Nanowires for Photoelectrochemical Water-splitting[J]. CHEMISTRYSELECT,2017,2(9):2822-2827.
APA	Tian, Zhangliu.,Cui, Houlei.,Xu, Jijian.,Zhu, Guilian.,Shao, Feng.,...&Huang, Fuqiang.(2017).Efficient Charge Separation of In-Situ Nb-Doped TiO2 Nanowires for Photoelectrochemical Water-splitting.CHEMISTRYSELECT,2(9),2822-2827.
MLA	Tian, Zhangliu,et al."Efficient Charge Separation of In-Situ Nb-Doped TiO2 Nanowires for Photoelectrochemical Water-splitting".CHEMISTRYSELECT 2.9(2017):2822-2827.