New Gelation Process for Pt/Al2O3 Catalysts Preparation |
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| Authors: | Leïla Khelifi Abdelhamid Ghorbel |
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| Abstract: | Gel of platinum and aluminum was prepared by an anhydrous gelation process using a mixture of aluminum sec butoxid, platinum acetylacetonate and Butanol-2. The investigation of this gelation by FTIR, UV-vis and 27Al NMR spectroscopies suggest that a slow polymerization of aluminum precursors occurs according to an etheration mecanism likely catalysed by metallic platinum which could be formed by the reduction of platinum in Pt(acac)2 by sBuOH in the mixture during aging. |
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| Keywords: | preparation chemistry gelation process Pt/Al2O3 catalysts |
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