电致变色
氧化锡
材料科学
电解质
复合数
纳米结构
化学工程
基质(水族馆)
电致变色装置
电极
纳米技术
氧化物
纳米复合材料
复合材料
化学
海洋学
物理化学
地质学
工程类
冶金
作者
Karla Rosa Reyes,Zachary Dan. Stephens,David B. Robinson
摘要
A composite material consisting of TiO2 nanotubes (NTs) with WO3 electrodeposited homogeneously on its surface has been fabricated, detached from its substrate, and attached to a fluorine-doped tin oxide film on glass for application to electrochromic (EC) reactions. A paste of TiO2 made from commercially available TiO2 nanoparticles creates an interface for the TiO2 NT film to attach to the FTO glass, which is conductive and does not cause solution-phase ions in an electrolyte to bind irreversibly with the material. The effect of NT length on the current density and the EC contrast of the material were studied. The EC redox reaction seen in this material is diffusion- limited, having relatively fast reaction rates at the electrode surface. The composite WO3/TiO2 nanostructures showed higher ion storage capacity, better stability, enhanced EC contrast and longer memory time compared with the pure WO3 and TiO2.
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