Controlled Synthesis of WO3 Nanorods and Their Electrochromic Properties in H2SO4 Electrolyte

被引:286
作者
Wang, Jinmin [1 ]
Khoo, Eugene [1 ]
Lee, Pooi See [1 ]
Ma, Jan [1 ]
机构
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
关键词
TUNGSTEN-OXIDE FILMS; THIN-FILMS; INTERCALATION; NANOPARTICLES;
D O I
10.1021/jp901650v
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
Uniform crystalline WO3 nanorods were synthesized by a lithium-or sulfate-free hydrothermal process with NaCl as a capping agent. It is found that variations in the pH and amount of capping agent have critical influence on the morphologies of the resultant WO3 nanostructures. The electrochromic film comprised of the as-synthesized crystalline WO3 nanorods exhibits a fast coloration/bleaching switching, coloration efficiency comparable to that of conventional amorphous WO3 films, and a high H+ ion-insertion ability in 0.5 mol/L H2SO4 solution without degradation.
引用
收藏
页码:9655 / 9658
页数:4
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