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Performance of an Array of Tin Dioxide-Based Ceramic Sensors for CO and SO2 Selective Detecting

Performance of an Array of Tin Dioxide-Based Ceramic Sensors for CO and SO2 Selective Detecting Changes in electrical resistance of tin dioxide based ceramic pellets have been studied (as received and doped with Tl, Zn, Rh, Cu, Pt, Ir, Cd and Co) in air and at various concentrations of nitrogen mixed with CO and SO2. In response to changes in the amount of adsorbed oxygen, the electric conductivity in direct current of the materials tested modifies accordingly. This behaviour is influenced by physical (diffusion in nitrogen) and chemical (CO and SO2 oxidation) phenomena. It was showed that the electric answers of the sensors doped with Zn, Cu, Pt and Ir could be combined for the simultaneous determination of CO and SO2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Performance Materials Springer Journals

Performance of an Array of Tin Dioxide-Based Ceramic Sensors for CO and SO2 Selective Detecting

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References (12)

Publisher
Springer Journals
Copyright
Copyright © 1997 by Kluwer Academic Publishers
Subject
Engineering; Automotive Engineering; Characterization and Evaluation of Materials; Classical Mechanics; Metallic Materials
ISSN
0929-1881
eISSN
1572-8765
DOI
10.1023/A:1008684618861
Publisher site
See Article on Publisher Site

Abstract

Changes in electrical resistance of tin dioxide based ceramic pellets have been studied (as received and doped with Tl, Zn, Rh, Cu, Pt, Ir, Cd and Co) in air and at various concentrations of nitrogen mixed with CO and SO2. In response to changes in the amount of adsorbed oxygen, the electric conductivity in direct current of the materials tested modifies accordingly. This behaviour is influenced by physical (diffusion in nitrogen) and chemical (CO and SO2 oxidation) phenomena. It was showed that the electric answers of the sensors doped with Zn, Cu, Pt and Ir could be combined for the simultaneous determination of CO and SO2.

Journal

Advanced Performance MaterialsSpringer Journals

Published: Sep 28, 2004

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