Low Temperature Heat Treatment of Anodic TiO2 Nanotube Array Thin Film and Their Photo-Electrochemical Properties

被引：11
|
作者：
Li, Hongyi [1 ]
Wang, Jinshu [1 ]
Wang, Hong [1 ]
Liu, Man [1 ]
机构：
[1] Beijing Univ Technol, Sch Mat & Engn, Beijing 100124, Peoples R China
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2012年 / 4卷 / 05期
基金：
中国国家自然科学基金;
关键词：
TiO2; Nanotube; Low Temperature Heat Treatment; Photo-Induced Cathodic Protection; TITANIA NANOTUBES; PHASE; EFFICIENCY; WATER; OXIDE; ANATASE;
D O I：
10.1166/nnl.2012.1347
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Highly ordered TiO2 nanotube arrays have been fabricated via anodization in NH4HF2/glycol electrolyte at 30 V for 2 h. The obtained TiO2 nanotube array is amorphous and can be transferred into anatase by hydrothermal or solvothermal annealing. The NaCl aqueous solution and ethanol was respectively used as reaction solution during the hydrothermal or solvothermal process. It's open circuit potential (OCP) in 3.5% NaCl aqueous electrolyte decreased under the metal halogen light irritation and increased after the light was cut off. The biggest value of the decrease is about 0.45 eV, which means that such kind of thin films can be used as photo-induced cathodic protection for metals.
引用
收藏
页码：564 / 568
页数：5
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