Title
The effect of sintering and Pd-doping on the conversion of CO to <tex>$CO_{2}$</tex> on <tex>$SnO_{2}$</tex> gas sensor materialsThe effect of sintering and Pd-doping on the conversion of CO to <tex>$CO_{2}$</tex> on <tex>$SnO_{2}$</tex> gas sensor materials
Author
Faculty/Department
Faculty of Sciences. Bioscience Engineering
Research group
Environmental Ecology & Microbiology (ENdEMIC)
Publication type
article
Publication
Lausanne,
Subject
Chemistry
Engineering sciences. Technology
Source (journal)
Sensors and actuators : B : chemical. - Lausanne
Volume/pages
44(1997), p. 446-451
ISSN
0925-4005
ISI
000071717900035
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
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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