J. A. Zakharova, M. F. Zansokhova, E. A. Karpushkin, V. G. Sergeyev, “Significant improving H+/VO2+ permselectivity of Nafion membrane by modification with PDDA in aqueous isopropanol”, Mendeleev Commun., 2021, Volume 31, Issue 6,Pages 839

This article is cited in 7 papers

Communications

Significant improving H⁺/VO²⁺ permselectivity of Nafion membrane by modification with PDDA in aqueous isopropanol

J. A. Zakharova, M. F. Zansokhova, E. A. Karpushkin, V. G. Sergeyev

Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation

Abstract: The modification of Nafion® membranes with poly(diallyldimethylammonium chloride) (PDDA) in aqueous solutions of isopropanol has been investigated. A remarkable decrease in vanadyl ion permeability (by 3.5 orders of magnitude), accompanied by a decrease in proton conductivity sixfold at most, was found for Nafion membranes modified in 30–35 wt% isopropanol solutions providing a high swelling of the membranes. The Bradford reagent has been used for the detection of PDDA on the membrane surface.

Keywords: Nafion membrane, PDDA, isopropanol, vanadyl permeability, proton conductivity, Bradford reagent.

Language: English

DOI: 10.1016/j.mencom.2021.11.023

	*Supplementary materials:*
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