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The Influence of Montmorillonite Treatment on Structure, Sorption Properties and Catalytic Behaviour : Part I. Zirconia pillared Clays Modified with Manganese as Denox Catalyts

Grzybek T., Klinik J., Olszewska D., Papp H., Smarzowski J.

Polish Journal of Chemistry

2001

Vol. 75, nr 6

857-868

Clays were pillared with zirconium aquahydroxycations starting from untreated or HCl-pretreated montmorillonite. The supports were promoted with manganese by adsorption method. Structure and texture was studied by XRD and low temperature argon sorption. The information on distribution of manganese was obtained from XPS and textural studies. Catalytic activity in SCR reaction was shown to depend on the initial pretreatment of montmorillonite. Selectivity to nitrogen was connected with the distribution of active material.