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Fuel-cell type ceramic-carbon oxygen sensors

Authors :
Michael Tsionsky
Jenny Gun
Ovadia Lev
L. Rabinovich
Source :
Journal of Sol-Gel Science and Technology. 8:1077-1081
Publication Year :
1997
Publisher :
Springer Science and Business Media LLC, 1997.

Abstract

Several classes of sol-gel derived, fuel-cell-type gas sensors are described. The electrochemical sensors are comprised of a hydrophobically modified silicate network and a dispersion of carbon powder and inert metal (palladium or platinum in the zero valent state) or organometallic (e.g., cobalt porphyrin) catalyst modifier. The carbon powder provides conductivity, the Ormosil network assures high porosity, which is pertinent for gas permeation through the back of the electrodes, and the hydrophobic functional group assures that only a thin layer at the outermost section of the electrode is wetted by the electrolyte, thus providing fast dynamic response.

Details

ISSN :
15734846 and 09280707
Volume :
8
Database :
OpenAIRE
Journal :
Journal of Sol-Gel Science and Technology
Accession number :
edsair.doi...........08f90b3c50eef22a62b1b39b55ccd897
Full Text :
https://doi.org/10.1007/bf02436987