Enhanced ethanol sensing properties of TiO2 nanotube sensors

被引：124

作者：

Kwon, Youngjae ^{[2
]}

Kim, Hyunsu ^{[1
]}

Lee, Sangmin ^{[3
]}

Chin, In-Joo ^{[4
]}

Seong, Tae-Yeon ^{[5
]}

Lee, Wan In ^{[6
]}

Lee, Chongmu ^{[1
]}

机构：

[1] Inha Univ, Dept Mat Sci & Engn, Inchon 402751, South Korea

[2] Inha Univ, Inst Informat & Elect Res, Inchon 402751, South Korea

[3] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea

[4] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

[5] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[6] Inha Univ, Dept Chem, Inchon 402751, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 173卷

基金：

新加坡国家研究基金会;

关键词：

TiO2; nanotubes; Gas sensors; Response; Ethanol; TITANIA NANOTUBES; GAS SENSORS; THIN-FILMS; ARRAYS; FABRICATION; NANOSTRUCTURES; OXIDATION; CO; PD;

D O I：

10.1016/j.snb.2012.07.062

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

TiO2 nanotube arrays were prepared for use as gas sensors by anodizing Ti thin foils. Transmission electron microscopy revealed a tube diameter and length ranging from 70 to 120 nm and 300 to 400 nm, respectively. The TiO2 nanotube array sensors showed responses of 68,000 and 1,380,000% to 300 and 1000 ppm C2H5OH at 250 degrees C, respectively. These values are far superior to the responses obtained by most oxide one-dimensional nanostructures reported in the literature. In addition, the ethanol sensing mechanism of the TiO2 nanotube array sensors is discussed. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：441 / 446

页数：6

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