Abstract
Abstract We prepared the siliceous and niobiosilica mesostructured cellular foams (MCF) as supports for 1wt% of platinum loaded via the wetness impregnation method. For the comparison the Pt/MCM-41 and Pt/NbMCM-41 materials were investigated. Niobium was introduced by two methods, co-precipitation with siliceous source and the impregnation of siliceous MCF. The method of Nb introduction determines the surface properties and finally the catalytic activity of platinum containing catalysts. The efficiency of Nb introduction and activity in acetonylacetone transformation (test reaction) and NO, O2, C3H6 interaction (studied by FTIR) are discussed in this work.
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