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Cobalt Containing Zeolite Systems: Red-ox Properties and Catalytic Activity

Lutsenko L. V., Oleksenko L. P., Chen Y.

Polish Journal of Chemistry

2008

Vol. 82, nr 1-2

113-119

The influence of zeolite nature on catalytic activity of Co-containing systems of CO oxidation was investigated. It is established that the activity of catalysts increases in the order 10%Co-NaA < 10%Co-NaM < 10%Co-NaZSM-5(37) < 10%Co-NaZSM-5(69). The cobalt spinelCoCo2O4 formed on the surface of zeolite supports is established to be an active phase. The TPR-H2 study of Co-zeolite systems showed that the content of cobalt cations with high reducibility in the surface layer was the largest for the most active catalyst Co-NaZSM-5(69).