Effect of sintering and Pd-doping on the conversion of CO to CO2 on SnO2 gas sensor materials

被引：0
|
作者：
Delabie, L. [1 ]
Honore, M. [1 ]
Lenaerts, S. [1 ]
Huyberechts, G. [1 ]
Roggen, J. [1 ]
Maes, G. [1 ]
机构：
[1] Interuniversity Microelectronics, Cent, Heverlee, Belgium
来源：
Sensors and Actuators, B: Chemical | 1997年 / B44卷 / 1 -3 pt 5期
关键词：
Agglomeration - Carbon dioxide - Fourier transform infrared spectroscopy - Interfacial energy - Metallic films - Palladium - Particle size analysis - Porosity - Semiconducting tin compounds - Semiconductor doping - Sintering - Thermal effects;
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摘要：
The principal aim of this work is to study the effect of the processes of sintering and Pd doping of SnO2 gas sensor materials on the conversion of CO to CO2. For this purpose, the gas phase above screen printed sensor material is investigated using FTIR spectroscopy, while surface area, porosity and particle size measurements are performed on the SnO2 powders. During sintering, larger agglomerates of primary particles are formed, which results in a larger conversion degree of CO. The effect of Pd doping of the tin dioxide film on the CO conversion is more pronounced. The transformation of CO starts at a lower temperature and the conversion degree increases remarkably.
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页码：446 / 451
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