Facet-selective charge carrier transport, deactivation mechanism and stabilization of a Cu2O photo-electro-catalyst

被引:24
作者
Li, Yang [1 ,2 ]
Yun, Xiaogang [1 ]
Chen, Hong [3 ]
Zhang, Wenqin [2 ]
Li, Yongdan [1 ]
机构
[1] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin Key Lab Appl Catalysis Sci & Technol, State Key Lab Chem Engn,Sch Chem Engn, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China
基金
中国博士后科学基金;
关键词
CUPROUS-OXIDE; CRYSTAL FACES; WATER; PHOTOCATHODE; NANOCOMPOSITE; PERFORMANCE; CONVERSION; FACILE; FILMS;
D O I
10.1039/c6cp00297h
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A facet-dependent photo-deactivation mechanism of Cu2O was verified and reported, which is caused by the facet-dependent charge carrier transport. During irradiation, the {100} and {110} crystal facets are selectively corroded by the photo-generated holes, while the {111} facets are comparatively stable.
引用
收藏
页码:7023 / 7026
页数:4
相关论文
共 26 条
[1]   Nanotechnology for photolytic hydrogen production: Colloidal anodic oxidation [J].
Best, James P. ;
Dunstan, Dave E. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (18) :7562-7578
[2]   STABILITY OF SEMICONDUCTOR ELECTRODES AGAINST PHOTODECOMPOSITION [J].
GERISCHER, H .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1977, 82 (1-2) :133-143
[3]   Facile and mild solution synthesis of Cu2O nanowires and nanotubes driven by screw dislocations [J].
Hacialioglu, Salih ;
Meng, Fei ;
Jin, Song .
CHEMICAL COMMUNICATIONS, 2012, 48 (08) :1174-1176
[4]   Facet-dependent properties of polyhedral nanocrystals [J].
Huang, Michael H. ;
Rej, Sourav ;
Hsu, Shih-Chen .
CHEMICAL COMMUNICATIONS, 2014, 50 (14) :1634-1644
[5]   Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4 [J].
Li, Rengui ;
Zhang, Fuxiang ;
Wang, Donge ;
Yang, Jingxiu ;
Li, Mingrun ;
Zhu, Jian ;
Zhou, Xin ;
Han, Hongxian ;
Li, Can .
NATURE COMMUNICATIONS, 2013, 4
[6]   Templating Sol-Gel Hematite Films with Sacrificial Copper Oxide: Enhancing Photoanode Performance with Nanostructure and Oxygen Vacancies [J].
Li, Yang ;
Guijarro, Nestor ;
Zhang, Xiaoli ;
Prevot, Mathieu S. ;
Jeanbourquin, Xavier A. ;
Sivula, Kevin ;
Chen, Hong ;
Li, Yongdan .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (31) :16999-17007
[7]   Thermal conversion synthesis of Cu2O photocathode and the promoting effects of carbon coating [J].
Li, Yang ;
Zhang, Xiaoli ;
Chen, Hong ;
Li, Yongdan .
CATALYSIS COMMUNICATIONS, 2015, 66 :1-5
[8]   Improved photoelectrochemical property of a nanocomposite NiO/CdS@ZnO photoanode for water splitting [J].
Li, Yang ;
Zhang, Xiaoli ;
Jiang, Shaohong ;
Dai, Haitao ;
Sun, Xiaowei ;
Li, Yongdan .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2015, 132 :40-46
[9]   Cu2O|NiOx nanocomposite as an inexpensive photocathode in photoelectrochemical water splitting [J].
Lin, Chia-Yu ;
Lai, Yi-Hsuan ;
Mersch, Dirk ;
Reisner, Erwin .
CHEMICAL SCIENCE, 2012, 3 (12) :3482-3487
[10]   Crystal facet engineering of semiconductor photocatalysts: motivations, advances and unique properties [J].
Liu, Gang ;
Yu, Jimmy C. ;
Lu, Gao Qing ;
Cheng, Hui-Ming .
CHEMICAL COMMUNICATIONS, 2011, 47 (24) :6763-6783