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Fibroporous polytetrafluoroethylene modified with iron nanoparticles: Structure and electronic and magnetic properties

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

A method for synthesizing iron-containing nanocomposite based on fibroporous polytetrafluoroethylene (PTFE) is described. Fibroporous PTFE obtained under the radiation of a CO2 laser on block PTFE is modified in supercritical carbon dioxide (sc CO2) to form micro- and nanoporous structures. Porous fluoropolymer is treated with a solution of bis(toluene)iron(0) obtained by metal-vapor synthesis (MVS). The composition and structure of iron-containing fluoropolymer is studied by transmission electron microscopy and X-ray photoelectron and Mössbauer spectroscopy. Fe nanoparticles with an average size of 9 nm, consisting of ∼30% FeO and ∼70% Fe3+, are registered in the sample. Fe0 nanoparticles are stabilized in fluoropolymer pores and are coated with nanoparticles of nonstoichiometric iron oxides that have superparamagnetic properties.

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, Moscow, 119992, Russia

    A. Yu. Vasil’kov

  2. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991, Russia

    A. Yu. Vasil’kov, L. N. Nikitin, A. V. Naumkin & S. S. Abramchuk

  3. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russia

    I. P. Suzdalev & Yu. V. Maksimov

  4. Belyi Metal Polymer Research Institute, National Academy of Sciences of Belarus, Gomel, 246050, Belarus

    E. M. Tolstopyatov & P. N. Grakovich

Authors
  1. A. Yu. Vasil’kov
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  2. I. P. Suzdalev
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  3. Yu. V. Maksimov
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  4. L. N. Nikitin
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  5. A. V. Naumkin
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  6. S. S. Abramchuk
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  7. E. M. Tolstopyatov
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  8. P. N. Grakovich
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Correspondence to A. Yu. Vasil’kov.

Additional information

Original Russian Text © A.Yu. Vasil’kov, I.P. Suzdalev, Yu.V. Maksimov, L.N. Nikitin, A.V. Naumkin, S.S. Abramchuk, E.M. Tolstopyatov, P.N. Grakovich, 2013, published in Zhurnal Fizicheskoi Khimii, 2013, Vol. 87, No. 6, pp. 1001–1008.

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Vasil’kov, A.Y., Suzdalev, I.P., Maksimov, Y.V. et al. Fibroporous polytetrafluoroethylene modified with iron nanoparticles: Structure and electronic and magnetic properties. Russ. J. Phys. Chem. 87, 985–991 (2013). https://doi.org/10.1134/S0036024413050294

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  • DOI: https://doi.org/10.1134/S0036024413050294

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