relation: https://khub.utp.edu.my/scholars/9474/
title: Improved vanadium barrier properties of perfluorinated sulfonic acid membranes for vanadium redox flow battery
creator: Sha'Rani, S.S.
creator: Abouzari-Lotf, E.
creator: Nasef, M.M.
creator: Ahmad, A.
creator: Ting, T.M.
creator: Ali, R.R.
description: The search for highly vanadium selective membrane for vanadium redox flow battery (VRFB) is fast growing to accelerate the commercialization of VRFB. Currently, VRFB is challenged by high vanadium permeability through the membranes lowering the battery performance. In this paper, a simple and effective strategy for improving the vanadium barrier permeability of the membranes, without altering the desired proton conductivity, was reported by applying layer(s) of polyelectrolytes. A commercial perfluorinated sulfonic acid membrane, GN115 was modified by layer of positively charged poly(diallyldimethylammonium chloride) (PDDA) or consecutive layers of PDDA and negatively charged poly(sodium styrene sulfonate) (PSS). Upon surface modification, the membranes exhibited a reduced vanadium permeability with a slight decreased in proton conductivity values compared with the pristine GN115 and N117. As a result, higher coulombic efficiency was obtained in VRFB single cell with the modified membranes. This confirms that the addition of the polyelectrolyte layers can suppress the vanadium permeability of the membranes. © Published under licence by IOP Publishing Ltd.
publisher: Institute of Physics Publishing
date: 2018
type: Conference or Workshop Item
type: PeerReviewed
identifier:   Sha'Rani, S.S. and Abouzari-Lotf, E. and Nasef, M.M. and Ahmad, A. and Ting, T.M. and Ali, R.R.  (2018) Improved vanadium barrier properties of perfluorinated sulfonic acid membranes for vanadium redox flow battery.  In: UNSPECIFIED.     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059372240&doi=10.1088%2f1757-899X%2f458%2f1%2f012079&partnerID=40&md5=b4d623d026a7f41cbeab525d9b719857
relation: 10.1088/1757-899X/458/1/012079
identifier: 10.1088/1757-899X/458/1/012079