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题名: Photoelectrochemical Water Splitting Promoted with a Disordered Surface Layer Created by Electrochemical Reduction
作者: Yan, Pengli1, 2, 3;  Liu, Guiji2, 3, 4;  Ding, Chunmei2, 3, 4;  Han, Hongxian2, 3;  Shi, Jingying2, 3;  Gan, Yang1;  Li, Can2, 3
关键词: TiO2 nanorod arrays ;  surface disordered layer ;  electrochemical reduction ;  water splitting ;  charge injection efficiency
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2015-02-18
DOI: 10.1021/am508738d
卷: 7, 期:6, 页:3791-3796
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Science & Technology - Other Topics ;  Materials Science
英文摘要: The recent discovery of colored TiO2 indicated that the disordered surface layer over the TiO2 particles/photoelectrodes is beneficial for higher photocatalytic performance; however, the role of the disordered surface TiO2 layer is not well understood. Here, we report an electrochemical strategy for tuning the surface structure of TiO2 nanorod arrays (NRAs) and try to understand the role of the disordered surface TiO2 layer. Photoelectrodes of TiO2 NRAs with a disordered shell were prepared by an electrochemical reduction method. The photocurrent of the NRAs with a disordered shell can reach as high as similar to 1.18 mA/cm(2) at 1.23 V, which is 2.2 times of that of the pristine TiO2 NRAs. Our results show that the surface disordered layer not only improves the bulk charge separation but also suppresses the charge recombination at the electrode/electrolyte interface, acting as an efficient water oxidation cocatalyst of photoelectrochemical cell for solar water splitting.
关键词[WOS]: SENSITIZED SOLAR-CELLS ;  TIO2 NANOWIRE ARRAYS ;  PHOTOCATALYTIC ACTIVITY ;  NANOPARTICLES ;  PHOTOANODES ;  EVOLUTION ;  OXIDATION ;  EFFICIENT ;  PERFORMANCE ;  COCATALYST
语种: 英语
WOS记录号: WOS:000349806800042
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146015
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yan, Pengli,Liu, Guiji,Ding, Chunmei,et al. Photoelectrochemical Water Splitting Promoted with a Disordered Surface Layer Created by Electrochemical Reduction[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(6):3791-3796.
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