Electrophysical properties of polymer membranes with the introduction of rare-earth metal compounds into membrane matrix
DOI:
https://doi.org/10.33910/2687-153X-2022-4-1-10-16Keywords:
perfluorosulfonic membrane, modification, rare earth elements, dielectric spectroscopy, conductivityAbstract
The original and modified with terbium(III) chloride perfluorosulfonic membranes were studied by dielectric spectroscopy in a wide range of frequencies (f = 100 Hz…105 Hz) and temperatures (T = 273 K…403 K). The membrane was modified by ion exchange sorption from an aqueous salt solution for several hours until an equilibrium value was reached. The sorption control was spectrophotometric. During the study, we obtained conductivity data of the samples and discovered their hopping conduction mechanism.
Measurement of the dielectric loss factor ε” in the layers of the sample made it possible to reveal the existence of a process leading to relaxation losses in the samples.
References
Ivanchev, S. S., Likhomanov, V. S., Primachenko, O. N. et al. (2012) Nauchnye osnovy novoj tekhnologii polucheniya perftorirovannogo polimernogo elektrolita dlya toplivnykh elementov [Scientific principles of a new process for manufacturing perfluorinated polymer electrolytes for fuel cells]. Membrany i membrannye tekhnologii — Membranes and membrane technologies, 2 (1), 3–12. (In Russian)
Jonscher, A. K. (1977) The ‘universal’ dielectric response. Nature, 267, 673–679. https://doi.org/10.1038/267673a0 (In English)
Mustafaeva, S. N. (2008) Dielektricheskie svojstva monokristallov TlGa1–xFexSe2 v peremennykh elektricheskikh polyakh [Dielectric properties of TlGa1-xFexSe2 single crystals in alternating electric fields]. Zhurnal radioelektroniki — Journal of Radio Electronics, 5, 1–11. (In Russian)
Napoli, L., Lavorante, M. J., Franco, J. et al. (2013) Effects on nafionR 117 membrane using different strong acids in various concentrations. Journal of New Materials for Electrochemical Systems, 16 (3), 151–156. (In English)
Safronova, E. Yu., Yaroslavtsev, A. B. (2015) Synthesis of MF-4SC composite membranes exhibiting an anisotropic distribution of zirconia and ion transport asymmetry. Petroleum Chemistry, 55 (10), 862–865. https://doi.org/10.1134/S0965544115100229 (In English)
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Copyright (c) 2023 Nikolay A. Lapatin, Rene Alejandro Castro Arata, Elena A. Karulina, Tikhon V. Reztsov
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