TY  - CONF
AV  - none
KW  - Chlorine compounds; Mechanical permeability; Membranes; Polyelectrolytes; Process engineering; Proton conductivity; Styrene; Surface treatment; Vanadium
KW  -  Battery performance; Coulombic efficiency; Perfluorinated sulfonic acid membranes; Poly(diallyldimethylammonium chloride); Polyelectrolyte layers; Sodium styrene sulfonates; Vanadium permeabilities; Vanadium redox flow batteries
KW  -  Flow batteries
ID  - scholars9474
TI  - Improved vanadium barrier properties of perfluorinated sulfonic acid membranes for vanadium redox flow battery
N1  - cited By 0; Conference of 5th International Conference on Process Engineering and Advanced Materials, ICPEAM 2018 ; Conference Date: 13 August 2018 Through 14 August 2018; Conference Code:143521
N2  - 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.
SN  - 17578981
PB  - Institute of Physics Publishing
Y1  - 2018///
VL  - 458
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059372240&doi=10.1088%2f1757-899X%2f458%2f1%2f012079&partnerID=40&md5=b4d623d026a7f41cbeab525d9b719857
A1  - Sha'Rani, S.S.
A1  - Abouzari-Lotf, E.
A1  - Nasef, M.M.
A1  - Ahmad, A.
A1  - Ting, T.M.
A1  - Ali, R.R.
ER  -