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NMR Detection of Phase Transition in a ZSM-5 Silicalite Caused by the Adsorbed Hexane and Decane Molecules

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Abstract

Times of longitudinal T 1b and transverse T 2b magnetic relaxation of hexane and decane molecules in micropores of ZSM-5 silicalite were measured as functions of the content of these liquid n-alkanes in zeolite and of temperature. The stepwise changes in the T 1b and T 2b times were revealed in the region of 8% content of hydrocarbons. The observed changes in the concentration and temperature dependences of T 1b and T 2b times are explained by the rearrangement of silicalite crystal lattice under the action of adsorbed molecules.

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Authors and Affiliations

  1. Kazan State University, ul. Kremlevskaya 18, Kazan, 420008, Russia

    G. G. Pimenov, O. A. Opanasyuk & V. D. Skirda

  2. Universität Leipzig, Linnéstrasse 5, D-04103, Leipzig, Germany

    J. Kärger

Authors
  1. G. G. Pimenov
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  2. O. A. Opanasyuk
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  3. V. D. Skirda
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  4. J. Kärger
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Pimenov, G.G., Opanasyuk, O.A., Skirda, V.D. et al. NMR Detection of Phase Transition in a ZSM-5 Silicalite Caused by the Adsorbed Hexane and Decane Molecules. Colloid Journal 65, 60–64 (2003). https://doi.org/10.1023/A:1022371008948

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  • DOI: https://doi.org/10.1023/A:1022371008948

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