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Adsorption Properties of a Silicagel Surface with Grafted Transition Metal Acetylacetonate Complexes

  • Physical Chemistry of Surface Phenomena
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Abstract

The adsorption properties of a Silipore 200 surface and chemically modified sorption materials containing nickel, cobalt, and copper acetylacetonates are studied via gas chromatography. n-Alkanes (C6–C9) and adsorbates, the molecules of which have different electron-donating and electron-acceptor properties, are used as test compounds. From experimental data on the retention of adsorbates; their differential molar adsorption heats \(\bar q_{dif,1}\); changes in standard differential molar entropy \(\Delta \bar S_{1,C}^S\); and, for polar adsorbates, contributions \(\Delta \bar q_{dif,1(specific)}\) to the energy of dispersive and specific interactions, are calculated. The effect the metal ion in the structure of acetylacetonate has on the characteristics of thermodynamic retention is shown.

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Authors and Affiliations

  1. National Research Tomsk State University, Tomsk, 634050, Russia

    E. A. Pakhnutova, Zh. V. Faustova & Yu. G. Slizhov

Authors
  1. E. A. Pakhnutova
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  2. Zh. V. Faustova
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  3. Yu. G. Slizhov
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Correspondence to E. A. Pakhnutova.

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Original Russian Text © E.A. Pakhnutova, Zh.V. Faustova, Yu.G. Slizhov, 2018, published in Zhurnal Fizicheskoi Khimii, 2018, Vol. 92, No. 1, pp. 135–142.

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Pakhnutova, E.A., Faustova, Z.V. & Slizhov, Y.G. Adsorption Properties of a Silicagel Surface with Grafted Transition Metal Acetylacetonate Complexes. Russ. J. Phys. Chem. 92, 153–159 (2018). https://doi.org/10.1134/S003602441801017X

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  • DOI: https://doi.org/10.1134/S003602441801017X

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