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2 Polish Journal of Chemistry

2 2008

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The Influence of Reduction Pretreatment of Pt/SnO2 Catalysts on the Catalytic Performance in CO Oxidation

Chylak I., Szychowska A., Kocemba I., Rynkowski J.

Polish Journal of Chemistry

2008

Vol. 82, nr 1-2

69-75

The influence of reduction pretreatment of Pt/SnO2 catalysts on the catalytic performance in CO oxidation reaction was investigated.We can state that the catalytic activity of samples greatly depends on the kind of reducing agent and temperature of reduction. The obtained results were explained supposing that platinum can interact with tin dioxide and strong metal-support interactions (SMSI) are created. We concluded that hydrogen can create SMSI effect more easily than carbon monoxide.

Application of Semiconductor Pt/SnO2-based Sensor to Investigation of CO Oxidation Reaction

Szychowska A., Chylak I., Wróbel-Jędrzejewska M., Kocemba I., Rynkowski J.

Polish Journal of Chemistry

2008

Vol. 82, nr 1-2

49-55

Pt/SnO2-based pellistors and resistive sensors were applied to analysis of CO oxidation mechanism. Oscillatory behavior of the system was observed, the probable mechanism explaining the occurrence of oscillations was proposed.