Thick porous tungsten trioxide films by anodization of tungsten in fluoride containing phosphoric acid electrolyte

被引：64

作者：

Yang, Min ^{[1
]}

Shrestha, Nabeen K. ^{[1
]}

Schmuki, Patrik ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci, LKO, WW4, D-91058 Erlangen, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 10期

关键词：

Tungsten trioxide; Anodization; Electrochromic; Photocatalysis; Mesoporous; CHEMICAL-VAPOR-DEPOSITION; WO3; FILMS; ELECTROCHROMIC PROPERTIES; PHOTOCATALYSIS; NANOTUBES;

D O I：

10.1016/j.elecom.2009.08.014

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In the present work, we report on the formation of mesoporous thick tungsten trioxide films grown on tungsten foil by anodization in fluoride containing concentrated phosphoric acid (85%) electrolyte. Under optimized experimental conditions, mesoporous WO3 films with a thickness up to approximately 2 mu m are formed. SEM shows the films to consist of a connected network with a typical pore and feature diameter of ca 50 nm. These films as formed are amorphous and can be annealed to orthorhombic WO3 structure. These thick porous films can show significant enhanced electrochromic and improved photocatalytic properties. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：1908 / 1911

页数：4

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