Authors
|
Ke, X. ; Drache, M. ; Gohs, U. ; Kunz, U. ; Beuermann, S.
|
Title
|
Preparation of polymer electrolyte membranes via radiation-induced graft copolymerization on poly(ethylene-alt-tetrafluoroethylene) (ETFE) using the crosslinker N,N´-methylenebis(acrylamide)
|
Date
|
06.11.2018
|
Number
|
54740
|
Abstract
|
Polymer electrolyte membranes (PEM) prepared by radiation-induced graft copolymerization are investigated. For this purpose, commercial poly(ethylene-alt-tetrafluoroethylene) (ETFE) films were activated by electron beam treatment and subsequently grafted with the monomers glycidyl methacrylate (GMA), hydroxyethyl methacrylate (HEMA) and N,N´-methylenebis(acrylamide) (MBAA) as crosslinker. The target is to achieve a high degree of grafting (DG) and high proton conductivity. To evaluate the electrochemical performance, the PEMs were tested in a fuel cell and in a vanadium redox-flow battery (VRFB). High power densities of 134 mW·cm-2 and 474 mW·cm-2 were observed, respectively.
|
Publisher
|
Membranes
|
Wikidata
|
|
Citation
|
Membranes 8 (2018) ID102
|
DOI
|
https://doi.org/10.3390/membranes8040102
|
Tags
|
polymer electrolyte membranes etfe graft copolymerization crosslinker fuel cell vanadium redox-flow battery
|