Communication—Anion-Conductive Perfluoroheteroaromatic Composite Membranes: High Chemical Stability under Strong Alkaline Conditions
Year: 2016
Type: article
Abstract: Nafion is used as cation-conductive fluoropolymeric membranes in proton-exchange membrane fuel cells, flow batteries, etc. However, its fluoropolymer-based anion-exchange counterparts that are stable under strong basic conditions of alkaline membrane fuel cells have not yet been documented. In this communication, we report a fluoropolymer-based anion-conductive membrane comprised of perfluoro(phenyl-2,2 ' :6 ' ,2 '' -terpyridine), 2,2 ' :6 ' ,2 '' -terpyridine, and ZrO(ClO4) 2 , which was found stable in a 7 M KOH solution at 120°C for >2,200 h—unprecedented in literatures. Such high stability is due to its fluorinated polymeric structure, covalent C-C bonds that link the polymer side chains and the heteroaromatic ligands, and ZrO(ClO4) 2 nanoclusters as anion-exchange groups.
DOI: 10.1149/2.1261607jes
Authors: Shaoyi Xu, Rong Jiang, Shengdong Jiang, Yong Gao
Institution: Southern Illinois University Carbondale
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2344451211