Effects of calcining temperature on the phase structure and the formaldehyde gas sensing properties of CdO-mixed In2O3

被引：53

作者：

Chen, Ting ^{[1
]}

Zhou, Zhenlai ^{[1
]}

Wang, Yude ^{[1
]}

机构：

[1] Yunnan Univ, Dept Mat Sci & Engn, Kunming 650091, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2008年 / 135卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Calcining temperature; In2O3; CdO; CdIn2O4; Formaldehyde gas sensor;

D O I：

10.1016/j.snb.2008.08.013

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The CdO-mixed In2O3 materials with a molar ratio of 1:1 calcined at different temperatures were prepared using the solid-state synthesis technologies. The effect of the different calcining temperatures on the phase structures of CdO-mixed In2O3 was investigated by powder X-ray diffraction. Indirect-heating sensors using CdO-mixed In2O3 calcined at different temperatures as sensitive materials were fabricated on an alumina tube with Au electrodes and Platinum wires. Gas-sensing characteristics of CdO-mixed In2O3 to formaldehyde were investigated. It is found that CdIn2O4 came into be formed from CdO-mixed In2O3 more than 700 degrees C. The results show that the phase structure, the electronic and the gas sensing properties to formaldehyde were changed with the different calcining temperatures. The CdO-mixed In2O3 based gas sensors exhibit highest response to formaldehyde after calcining at 650 degrees C, making them to be promising candidates for practical detectors for formaldehyde. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：219 / 223

页数：5

共 15 条

[1] Properties of transparent conducting oxides formed from CdO alloyed with In2O3 [J].

Ali, H. M. ;

Mohamed, H. A. ;

Wakkad, M. M. ;

Hasaneen, M. F. .

THIN SOLID FILMS, 2007, 515 (05) :3024-3029

[2] Combinatorial libraries of semiconductor gas sensors as inorganic electronic noses [J].

Aronova, MA ;

Chang, KS ;

Takeuchi, I ;

Jabs, H ;

Westerheim, D ;

Gonzalez-Martin, A ;

Kim, J ;

Lewis, B .

APPLIED PHYSICS LETTERS, 2003, 83 (06) :1255-1257

[3] The fabrication and gas-sensing characteristics of the formaldehyde gas sensors with high sensitivity [J].

Chen, T. ;

Liu, Q. J. ;

Zhou, Z. L. ;

Wang, Y. D. .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 131 (01) :301-305

[4] Preparation and gas-sensing properties of NANO-CdIn2O4 material [J].

Chu, XF ;

Liu, XQ ;

Meng, GY .

MATERIALS RESEARCH BULLETIN, 1999, 34 (05) :693-700

[5] Nanoparticle engineering for gas sensor optimisation:: improved sol-gel fabricated nanocrystalline SnO2 thick film gas sensor for NO2 detection by calcination, catalytic metal introduction and grinding treatments [J].

Diéguez, A ;

Romano-Rodríguez, A ;

Morante, JR ;

Kappler, J ;

Bârsan, N ;

Göpel, W .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 60 (2-3) :125-137

[6] NiO thin-film formaldehyde gas sensor [J].

Dirksen, JA ;

Duval, K ;

Ring, TA .

SENSORS AND ACTUATORS B-CHEMICAL, 2001, 80 (02) :106-115

[7] PROPERTIES OF POLYCRYSTALLINE GAS SENSORS BASED ON DC AND AC ELECTRICAL MEASUREMENTS [J].

GUTIERREZ, FJ ;

ARES, L ;

ROBLA, JI ;

HORRILLO, MC ;

SAYAGO, I ;

AGAPITO, JA .

SENSORS AND ACTUATORS B-CHEMICAL, 1992, 8 (03) :231-235

[8] A self-heating gas sensor with integrated NiO thin-film for formaldehyde detection [J].

Lee, Chia-Yen ;

Chiang, Che-Ming ;

Wang, Yu-Hsiang ;

Ma, Rong-Hua .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 122 (02) :503-510

[9] SENSITIVITY TO REDUCING GAS AS A FUNCTION OF ENERGY BARRIER IN SNO2 THICK-FILM GAS SENSOR [J].

MARTINELLI, G ;

CAROTTA, MC .

SENSORS AND ACTUATORS B-CHEMICAL, 1992, 7 (1-3) :717-720

[10] CeO2 doped SnO2 sensor selective to ethanol in presence of CO, LPG and CH4 [J].

Pourfayaz, F ;

Khodadadi, A ;

Mortazavi, Y ;

Mohajerzadeh, SS .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 108 (1-2) :172-176

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