Fabrication and its characteristics of metal-loaded TiO2/SnO2 thick-film gas sensor for detecting dichloromethane

Young Ho Park; Hye-Kyung Song; Chang-Seop Lee; Jong-Gi Jee

Journal of Industrial and Engineering Chemistry, Vol.14, No.6, 818-823, November, 2008

DOI10.1016/j.jiec.2008.06.009 Export Citation

Fabrication and its characteristics of metal-loaded TiO2/SnO2 thick-film gas sensor for detecting dichloromethane

Young Ho Park^†, Hye-Kyung Song, Chang-Seop Lee¹, and Jong-Gi Jee

Department of Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea
¹Department of Chemistry, Keimyung University, Daegu 704-701, Republic of Korea

E-mail:

This study investigated sensitivity of the gas sensor to chemical warfare agents with the various operating temperatures and catalysts. The nanosized SnO2 powder mixed with metal oxide (TiO2) was doped with transition metals (Pt, Pd and In). Thick film of nano-sized SnO2 powder and TiO2 was prepared by screen-printing method onto Al2O3 substrates with platinum electrode and chemical precipitation method. The physical and chemical properties of sensor material were investigated by SEM/EDS, XRD and BET analyzers. The measured sensitivity to simulant chemical toxic gas is defined as the percentage of resistance of value equation, (Ra - Rg/Ra), that of the resistance (Rair) of SnO2 film in air and the resistance (Rgas) of SnO2 film in dichloromethane. The best sensitivity and selectivity of these thick-film sensor were shown with 1 wt.% Pt and 5 wt.% TiO2 for dichloromethane toxic gas at the operating temperature of 250 ℃.

Keywords:SnO2 gas sensor;Dichloromethane;Thick film;Screen-printing

[References]

Marrs TC, Maynard RL, Sidell FR, New York, JohnWiley& Sons, 1996
Lee SH, Song TY, J. Ind. Eng. Chem., 13(4), 602 (2007)
Tochigi M, Umekage T, Otani T, Kato T, Iwanami A, Asukai N, Sasaki T, Kato N, Neurosci. Res., 44, 267 (2002)
Iwanami A, Toshiyuki O, Mamoru T, Tadafumi K, Tsukasa S, Nobumasa K, Eur. Psychiatry, 17, 199 (2002)
Comptom JAF, Military Chemical and Biological Agents, Telford Press Caldwell, N.J., USA, 1987
Maynard RL, Mac-Millan, USA, 1995, pp. 1123-1153
Shimizu Y, Kuwano N, Hyodo T, Egashira M, Sens. Actuators B, 83, 195 (2002)
Lee DS, Jung JK, Lim JW, Huh JS, Lee DD, Sens. Actuators B, 77, 228 (2001)
Gelin P, Urfels L, Primet M, Tena E, Catal. Today, 83(1-4), 45 (2003)
Park SH, Ryu JY, Choi HH, Kwon TH, Sens.Actuators B, 46, 75 (1988)
Ministry of Defence, Ministry of Defence D/Med (F & S) (2) 10/1/1, London, HMSO, USA, 1987
Prentiss AM, Chemicals inWar, McGraw-Hill Book Company Inc., New York, 1937
Ireland MM, Medical Aspects of Gas Warfare, US Government, Washington, DC, 1926
Muir B, Duffy HB, Moran MC, J. Chromatogr. A, 1083, 183 (2004)
NIST Chemistry WebBook, 2003
Kawahara A, Katsuki H, Egashira M, Sens. Actuators B 49 (1998)
Kim BC, Kim JY, Lee DD, Lim JO, Huh JS, Sens. Actuators B, 89, 180 (2003)
Dean JA, Lange’s HandBook of Chemistry, 12th edition, McGraw Hill, New York, 1979, pp. 10-54
Xu C, Kurokawa J, Miura N, Yamazoe N, J. Mater. Sci., 27, 963 (1992)

[Referenced By]

[1] Marrs TC, Maynard RL, Sidell FR, New York, JohnWiley& Sons, 1996

[2] Lee SH, Song TY, J. Ind. Eng. Chem., 13(4), 602 (2007)

[3] Tochigi M, Umekage T, Otani T, Kato T, Iwanami A, Asukai N, Sasaki T, Kato N, Neurosci. Res., 44, 267 (2002)

[4] Iwanami A, Toshiyuki O, Mamoru T, Tadafumi K, Tsukasa S, Nobumasa K, Eur. Psychiatry, 17, 199 (2002)

[5] Comptom JAF, Military Chemical and Biological Agents, Telford Press Caldwell, N.J., USA, 1987

[6] Maynard RL, Mac-Millan, USA, 1995, pp. 1123-1153

[7] Shimizu Y, Kuwano N, Hyodo T, Egashira M, Sens. Actuators B, 83, 195 (2002)

[8] Lee DS, Jung JK, Lim JW, Huh JS, Lee DD, Sens. Actuators B, 77, 228 (2001)

[9] Gelin P, Urfels L, Primet M, Tena E, Catal. Today, 83(1-4), 45 (2003)

[10] Park SH, Ryu JY, Choi HH, Kwon TH, Sens.Actuators B, 46, 75 (1988)

[11] Ministry of Defence, Ministry of Defence D/Med (F & S) (2) 10/1/1, London, HMSO, USA, 1987

[12] Prentiss AM, Chemicals inWar, McGraw-Hill Book Company Inc., New York, 1937

[13] Ireland MM, Medical Aspects of Gas Warfare, US Government, Washington, DC, 1926

[14] Muir B, Duffy HB, Moran MC, J. Chromatogr. A, 1083, 183 (2004)

[15] NIST Chemistry WebBook, 2003

[16] Kawahara A, Katsuki H, Egashira M, Sens. Actuators B 49 (1998)

[17] Kim BC, Kim JY, Lee DD, Lim JO, Huh JS, Sens. Actuators B, 89, 180 (2003)

[18] Dean JA, Lange’s HandBook of Chemistry, 12th edition, McGraw Hill, New York, 1979, pp. 10-54

[19] Xu C, Kurokawa J, Miura N, Yamazoe N, J. Mater. Sci., 27, 963 (1992)