Fluorine-Doped Porous Single-Crystal Rutile TiO2 Nanorods for Enhancing Photoelectrochemical Water Splitting

被引：62
|
作者：
Fang, Wen Qi [1 ,2 ]
Huo, Ziyang [2 ]
Liu, Porun [3 ]
Wang, Xue Lu [1 ,3 ]
Zhang, Miao [4 ]
Jia, Yi [2 ]
Zhang, Haimin [3 ]
Zhao, Huijun [3 ]
Yang, Hua Gui [1 ,3 ]
Yao, Xiangdong [2 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China
[2] Griffith Univ, QLD Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia
[3] Griffith Univ, Griffith Sch Environm, Ctr Clean Environm & Energy, Nathan, Qld 4222, Australia
[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 36期
基金：
中国国家自然科学基金; 澳大利亚研究理事会; 中国博士后科学基金;
关键词：
photoelectrochemistry; hierarchical structures; porous materials; titanium dioxide; water splitting; ELECTRON-TRANSPORT; CONTROLLED GROWTH; SOLAR-CELLS; LOW-COST; EFFICIENCY; PHOTOCURRENT; MOBILITY; SIZE;
D O I：
10.1002/chem.201402914
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Fluorine-doped hierarchical porous single-crystal rutile TiO2 nanorods have been synthesized through a silica template method, in which F- ions acts as both n-type dopants and capping agents to make the isotropic growth of the nanorods. The combination of high crystallinity, abundant surface reactive sites, large porosity, and improved electronic conductivity leads to an excellent photoelectrochemical activity. The photoanode made of F-doped porous single crystals displays a remarkably enhanced solar-to-hydrogen conversion efficiency (approximate to 0.35% at -0.33 V vs. Ag/AgCl) under 100 mWcm(-2) of AM=1.5 solar simulator illumination that is ten times of the pristine solid TiO2 single crystals.
引用
收藏
页码：11439 / 11444
页数：6
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