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The State and Reactivity of Pt6 Particles in ZSM-5 Zeolite

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Abstract

The density functional theory (DFT/B3LYP) calculations were applied to investigate the interaction of a Pt6 particle with the ZSM-5 zeolite framework. The electronic structure of the metal particle is strongly affected by the interaction with basic framework oxygens and acid sites of the zeolite support. Adsorption on basic sites (Eads = 6 kcal/mol) favors the formation of the electron enriched metal cluster. Interaction of the platinum cluster with the acid site characterized by stabilization energy of 47 kcal/mol results in oxidation of the metal particle and suppression of Brønsted acidity of the support. The hypothesis is put forward that the oxidized platinum particle can function as an active site for the alkane isomerisation on platinum supported high silica zeolites.

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Authors and Affiliations

  1. N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russian Federation

    M. N. Mikhailov, L. M. Kustov & V. B. Kazansky

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  1. M. N. Mikhailov
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  2. L. M. Kustov
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  3. V. B. Kazansky
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Correspondence to M. N. Mikhailov.

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Mikhailov, M.N., Kustov, L.M. & Kazansky, V.B. The State and Reactivity of Pt6 Particles in ZSM-5 Zeolite. Catal Lett 120, 8–13 (2008). https://doi.org/10.1007/s10562-007-9245-z

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  • DOI: https://doi.org/10.1007/s10562-007-9245-z

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