ORIGINAL RESEARCH
Investigation of CO Oxidation by NO with Application of Semiconductor Gas Sensors
A. Szychowska, M. Wróbel-Jędrzejewska, I. Chylak, I. Kocemba, J. Rynkowski
Institute of General and Ecological Chemistry, Technical University of Łódź, Żeromskiego 116, 90-924 Poland
Pol. J. Environ. Stud. 2008;17(3):421–425
KEYWORDS
ABSTRACT
Catalytic activity of platinum supported on SnO2 in the reaction of CO oxidation by NO was examined. Catalysts were tested in gas mixture containing 1 vol.% of NO and 1 vol.% of CO in helium; activation procedure consisted of treatment of the catalysts with CO at 500°C. Improvement of catalytic activity after activation process was observed. The mechanisms of the oxidation and activation process with application of semiconductor resistive sensors made of Pt/SnO2 were investigated.
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