2021
DOI: 10.3390/polym13162827
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Blended Anion Exchange Membranes for Vanadium Redox Flow Batteries

Abstract: In this study, blended anion exchange membranes were prepared using polyphenylene oxide containing quaternary ammonium groups and polyvinylidene fluoride. A polyvinylidene fluoride with high hydrophobicity was blended in to lower the vanadium ion permeability, which increased when the hydrophilicity increased. At the same time, the dimensional stability also improved due to the excellent physical properties of polyvinylidene fluoride. Subsequently, permeation of the vanadium ions was prevented due to the posit… Show more

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Cited by 11 publications
(8 citation statements)
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“…4. All tested pristine membranes showed values of water uptake and exchange capacity in good agreement for battery purposes (with <30% and 0.3-2.2 mmol g − 1 of range, respectively) [30][31][32][33]. However, after modification the behaviour of Fig.…”
Section: Membrane Propertiesmentioning
confidence: 75%
“…4. All tested pristine membranes showed values of water uptake and exchange capacity in good agreement for battery purposes (with <30% and 0.3-2.2 mmol g − 1 of range, respectively) [30][31][32][33]. However, after modification the behaviour of Fig.…”
Section: Membrane Propertiesmentioning
confidence: 75%
“…Membranes play a crucial role in modifying the overall performance of the system. Thus, there are different categories of membranes, 71,[74][75][76][77][78] such as the cation exchange membrane (CEM), anion exchange membrane (AEM), amphoteric membrane, zwitterion membrane, porous and nonporous membrane, which were established and investigated as schematically represented in Fig. 1a.…”
Section: Krishna Rao Eswar Neerugattimentioning
confidence: 99%
“…Blends have gained interest due to their ability to modify their mechanical properties. For this reason, blends are exploited for rubber toughening [ 17 ], food packaging [ 18 ], creation of supports for protein immobilization [ 19 ] or design of selective ion-exchange systems [ 20 ]. Foams are formed by a gas–polymer mixture that provides microcellular structure with inner hollow pores.…”
Section: Introductionmentioning
confidence: 99%