Abstract
Semiconducting tin oxide precursor powders were synthesized via three different chemical processing routes. The influence of powder processing conditions on the physical properties, e.g., particle size, surface area and phase composition of both uncalcined and calcined materials, was investigated. These powders were used to fabricate gas sensors using thick-film screen-printing technology. The effect of precursor powders, sintering conditions, sensor temperature and Pd catalyst on the carbon monoxide, methane, propane and ethanol gas sensing characteristics of the sensors were investigated. Sensors were also fabricated using tin oxide powders obtained from a commercial source and their gas sensing properties were also investigated. The data indicates that the powder processing methodology, sensor fabrication conditions and Pd catalyst can profoundly influence the physical characteristics as well as the gas sensing properties of the sensors.
Similar content being viewed by others
References
S. Samson and C. G. Fonstad, J. Appl. Phys. 44 (1973) 4618.
J. F. McAleer, P. T. Moseley, J. O. W. Norris and D. E. Williams, J. Chem. Soc.; Faraday Trans. 1 83 (1987) 1323.
N. Yamazoe, J. Fuchigami, M. Kishikawa and T. Seiyama, Surf. Sci. 86 (1986) 335.
J. Tamaki, M. Nagaishi, Y. Teraoka, N. Miura and N. Yamazoe, ibid. 221 (1989) 83.
P. van Geloven, M. Honore, J. Roggen, S. Leppavuori and T. Rantala, Sensors and Actuators B 4 (1991) 185.
M. Egashira, M. Nakashima, S. Kawasumi and T. Seiyama, J. Phys. Chem. 85 (1981) 4125.
G. S. Devi, S. V. Manorama and V. J. Rao, J. Electrochem. Soc. 145(3) (1998) 1039.
G. S. V. Coles, G. Williams and B. Smith, Sensors and Actuators B 3 (1991) 7.
G. S. V. Coles, S. E. Bond and G. Williams, ibid. 4 (1991) 485.
Zhou, Y. Xu, Q. Cao and S. Niu, ibid. 41 (1997) 163.
K. Nomura, H. Shiozawa, T. Takada, H. Reuther and E. Richter, J. Mater. Sci.; Mater. Electr. 8 (1997) 301.
H. W. Cheong, J. J. Choi, H. P. Kim, J. M. Kim and J. M. Kim, IEEE (1991) 154.
J. L. Solis and V. Lantto, Physica Scripta T69 (1997) 281.
Ki Chang Song and Yong Kang, Mater. Lett. 42 (2000) 283.
R. Minhas, Q. Zhou, A. Ahmad and T. A. Wheat, in Proceedings of the International Symposium on Environmental Conscious Materials—Ecomaterials (Metallurgical Society of CIM, 2000) p. 545.
R. Minhas, A. Ahmad and T. A. Wheat, in Proceedings of the Electrochemical Society, Vol. 99-23, 1999, p. 293.
B. D. Cullity, “Elements of X-ray Diffraction,” 2nd edn. (Addison-Wesley Publishing, Massachusetts, 1978).
S. R. Morrison, Sensors and Actuators 12 (1987) 425.
N. Yamazoe, ibid. 5 (1991) 7.
M. Schweizer-Berberich, J. G. Zhang, U. Weimar, W. Gopel, N. Barsan, E. Penita and A. Tomescu, ibid. 31 (1996) 71.
L. N. Yannopoulos, ibid. 12 (1987) 77.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ahmad, A., Walsh, J. The influence of precursor powders and processing parameters on the properties of SnO2-based gas sensors. Journal of Materials Science 38, 4325–4332 (2003). https://doi.org/10.1023/A:1026335116001
Issue Date:
DOI: https://doi.org/10.1023/A:1026335116001