The gas sensitivity of nano TiO2-SnO2 film doped with Cd(II) ion

被引：10

作者：

Lin, Zhi-dong ^{[1
]}

Chen, Gao-feng ^{[1
]}

Zhou, Xun ^{[1
]}

Zeng, Wen ^{[1
]}

Zhang, Hong ^{[1
]}

机构：

[1] Wuhan Inst Technol, Prov Key Lab Plasma Chem & Adv Mat, Wuhan 430074, Peoples R China

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 27期

基金：

美国国家科学基金会;

关键词：

Formaldehyde; TiO2-SnO2; Sensitivity; ORGANIC-COMPOUNDS VOCS; ZNO THICK-FILM; SENSOR ARRAY; SNO2; TEMPERATURE;

D O I：

10.1016/j.matlet.2009.07.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nanocomposite oxide (0.2TiO(2)-0.8SnO(2)) doped with Cd2+ powder have been prepared and characterized by XRD and their gas-sensing sensitivity were characterized using gas sensing measurement Experimental results show that bicomponent nano anatase TiO2 and rutile SnO2 particulate thick film doped with Cd2+ behaves with good sensitivity to formaldehyde gas of 200 ppm in the air, and the optimum sensing temperature was reduced from 360 degrees C to 320 degrees C compared with the undoped Cd2+ thick film. The gas sensing thick films doped with Cd2+ also show good selectivity to formaldehyde among benzene, toluene, xylene and ammonia as disturbed gas and could be effectively used as an indoor formaldehyde sensor. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2277 / 2279

页数：3

共 9 条

[1] The effects of thickness and operation temperature on ZnO:Al thin film CO gas sensor [J].

Chang, JF ;

Kuo, HH ;

Leu, IC ;

Hon, MH .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 84 (2-3) :258-264

[2] Detection of liquid petroleum gas using mixed nanosized tungsten oxide-based thick-film semiconductor sensor [J].

Chaudhari, GN ;

Bende, AM ;

Bodade, AB ;

Patil, SS ;

Manorama, SV .

TALANTA, 2006, 69 (01) :187-191

[3] Electrostatic sprayed SnO2 and cu-doped SnO2 films for H2S detection [J].

Ghimbeu, Camelia Matei ;

Lumbreras, Martine ;

Siadat, Maryam ;

van Landschoot, Robert C. ;

Schoonman, Joop .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 133 (02) :694-698

[4] Study on TiO2-doped ZnO thick film gas sensors enhanced by UV light at room temperature [J].

Gui, Yanghai ;

Li, Shumian ;

Xu, Jiaqiang ;

Li, Chao .

MICROELECTRONICS JOURNAL, 2008, 39 (09) :1120-1125

[5]

Klug H.P., 1974, XRAY DIFFRACTION PRO, V2nd, P992

[6] Recognition of volatile organic compounds using SnO2 sensor array and pattern recognition analysis [J].

Lee, DS ;

Jung, JK ;

Lim, JW ;

Huh, JS ;

Lee, DD .

SENSORS AND ACTUATORS B-CHEMICAL, 2001, 77 (1-2) :228-236

[7] Detection of volatile organic compounds (VOCs) using SnO2 gas-sensor array and artificial neural network [J].

Srivastava, AK .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 96 (1-2) :24-37

[8] An electronic nose based on solid state sensor arrays for low-cost indoor air quality monitoring applications [J].

Zampolli, S ;

Elmi, I ;

Ahmed, F ;

Passini, M ;

Cardinali, GC ;

Nicoletti, S ;

Dori, L .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 101 (1-2) :39-46

[9] Improvement in gas sensitivity of ZnO thick film to volatile organic compounds (VOCs) by adding TiO2 [J].

Zhu, BL ;

Xie, CS ;

Wang, WY ;

Huang, KJ ;

Hu, JH .

MATERIALS LETTERS, 2004, 58 (05) :624-629

← 1 →