Electrochemical and photocatalytic properties of WO3 coatings grown at low temperatures

被引:66
作者
Vernardou, D. [1 ,2 ,3 ]
Drosos, H. [4 ]
Spanakis, E. [2 ,3 ,6 ]
Koudoumas, E. [1 ,5 ]
Savvakis, C. [1 ,2 ]
Katsarakis, N. [1 ,2 ,6 ]
机构
[1] Technol Educ Inst Crete, Sch Appl Technol, Ctr Mat Technol & Photon, Iraklion 71004, Crete, Greece
[2] Technol Educ Inst Crete, Sch Appl Technol, Dept Sci, Iraklion 71004, Crete, Greece
[3] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece
[4] Technol Educ Inst Crete, Sch Appl Technol, Dept Mech Engn, Iraklion 71004, Crete, Greece
[5] Technol Educ Inst Crete, Sch Appl Technol, Dept Elect Engn, Iraklion 71004, Crete, Greece
[6] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
关键词
OXIDE THIN-FILMS; TUNGSTEN-OXIDE; HYDROTHERMAL SYNTHESIS; ELECTROCHROMIC PROPERTIES; TIO2; DEPOSITION; NANOWIRES;
D O I
10.1039/c0jm02413a
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
The growth of tungsten oxide was carried out on microscope glass substrates using the one-pot direct hydrothermal method. Despite the simplicity of the technique, the coating grown using 0.3 M NaOH at 95 degrees C after 30 h, exhibited reversible electrochemical response without significant degradation, as studied by cycling voltammetry experiments for at least 250 times in a solution of 1 M LiClO4. This coating at the same time presented marked photocatalytic activity under solar illumination, degrading stearic acid by 52%. The results are discussed in terms of the materials' observed morphology towards which, the role of the growth solution chemistry is examined.
引用
收藏
页码:513 / 517
页数:5
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