Fabrication of WO3 nanotube sensors and their gas sensing properties

被引：76

作者：

An, Soyeon ^{[1
]}

Park, Sunghoon ^{[1
]}

Ko, Hyunsung ^{[1
]}

Lee, Chongmu ^{[1
]}

机构：

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

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

WO3; nanotubes; Gas sensors; Response; NO2; NO2; IN2O3; PERFORMANCE; NANOWIRES; PD;

D O I：

10.1016/j.ceramint.2013.07.025

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

WO3 nanotubes were synthesized using TeO2 nanowire templates. Transmission electron microscopy revealed the nanotubes to have tube diameters, lengths, and wall thicknesses ranging from 100-200 nm, 3-4 mu m, and 20-30 nm, respectively. The multiple networked WO3 nanotube sensors showed responses of 144-677% in the NO2 concentration range of 1-5 ppm at 300 degrees C. These responses were approximately double those observed for the WO3 nanorod sensors over the same NO2 concentration range. A model describing the gas sensing mechanism of WO3 NTs is also proposed. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1423 / 1429

页数：7

共 26 条

[21] Controlled growth and sensing properties of In2O3 nanowires [J].

Vomiero, Alberto ;

Bianchi, Sebastiano ;

Comini, Elisabetta ;

Faglia, Guido ;

Ferroni, Matteo ;

Sberveglieri, Giorgio .

CRYSTAL GROWTH & DESIGN, 2007, 7 (12) :2500-2504

[22]

Williams D.E., 1987, SOLID STATE GAS SENS

[23] Au-doped WO3-based sensor for NO2 detection at low operating temperature [J].

Xia, Huijuan ;

Wang, Yan ;

Kong, Fanhong ;

Wang, Shurong ;

Zhu, Baolin ;

Guo, Xianzhi ;

Zhang, Jun ;

Wang, Yanmei ;

Wu, Shihua .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 134 (01) :133-139

[24] Detection of NO2 down to ppb levels using individual and multiple In2O3 nanowire devices [J].

Zhang, DH ;

Liu, ZQ ;

Li, C ;

Tang, T ;

Liu, XL ;

Han, S ;

Lei, B ;

Zhou, CW .

NANO LETTERS, 2004, 4 (10) :1919-1924

[25] Pt clusters supported on WO3 for ethanol detection [J].

Zhang, Jun ;

Liu, Xianghong ;

Xu, Mijuan ;

Guo, Xianzhi ;

Wu, Shihua ;

Zhang, Shoumin ;

Wang, Shurong .

SENSORS AND ACTUATORS B-CHEMICAL, 2010, 147 (01) :185-190

[26] Study of Physical and Chemical Processes of H2 Sensing of Pt-Coated WO3 Nanowire Films [J].

Zhu, Lian Feng ;

She, Jun Cong ;

Luo, Jian Yi ;

Deng, Shao Zhi ;

Chen, Jun ;

Xu, Ning Sheng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (36) :15504-15509

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