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Open AccessArticle

Transport Asymmetry of Novel Bi-Layer Hybrid Perfluorinated Membranes on the Base of MF-4SC Modified by Halloysite Nanotubes with Platinum

1
Laboratory of functionalized aluminosilicate materials, Department of Physical and Colloid Chemistry, Gubkin University, Leninsky prospect 65-1, Moscow 119991, Russia
2
Department of Higher Mathematics, Gubkin University, Leninsky prospect 65-1, Moscow 119991, Russia
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Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1, Moscow 119991, Russia
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Department of Physical Chemistry, Kuban State University, Stavropol’skaya 149, Krasnodar 350040, Russia
5
Institute for Micromanufacturing, Louisiana Tech University, 911 Hergot Ave., Ruston, LA 71272, USA
*
Author to whom correspondence should be addressed.
Polymers 2018, 10(4), 366; https://doi.org/10.3390/polym10040366
Received: 28 February 2018 / Revised: 20 March 2018 / Accepted: 23 March 2018 / Published: 25 March 2018
(This article belongs to the Special Issue Selected Papers from "ECIS 2017")
Three types of bi-layer hybrid nanocomposites on the base of perfluorinated cation-exchange membrane MF-4SC (Russian analogue of Nafion®-117) were synthesized and characterized. It was found that two membranes possess the noticeable asymmetry of the current–voltage curve (CVC) under changing their orientation towards the applied electric field, despite the absence of asymmetry of diffusion permeability. These phenomena were explained in the frame of the “fine-porous model” expanded for bi-layer membranes. A special procedure to calculate the real values of the diffusion layers thickness and the limiting current density was proposed. Due to asymmetry effects of the current voltage curves of bi-layer hybrid membranes on the base of MF-4SC, halloysite nanotubes and platinum nanoparticles, it is prospective to assemble membrane switches (membrane relays or diodes) with predictable transport properties, founded upon the theory developed here. View Full-Text
Keywords: hybrid membrane; perfluorinated sulfocationic membrane; halloysite; platinum nanoparticles; diffusion permeability; asymmetry of current–voltage characteristics; modeling transport through a bi-layer membrane hybrid membrane; perfluorinated sulfocationic membrane; halloysite; platinum nanoparticles; diffusion permeability; asymmetry of current–voltage characteristics; modeling transport through a bi-layer membrane
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MDPI and ACS Style

Filippov, A.; Petrova, D.; Falina, I.; Kononenko, N.; Ivanov, E.; Lvov, Y.; Vinokurov, V. Transport Asymmetry of Novel Bi-Layer Hybrid Perfluorinated Membranes on the Base of MF-4SC Modified by Halloysite Nanotubes with Platinum. Polymers 2018, 10, 366.

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