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Facile Chemical Modification of Aquivion® Membranes for Anionic Fuel Cells
Author(s) -
Bonizzoni Simone,
Stilli Pietro,
LohmannRichters Felix,
Oldani Claudio,
Ferrara Chiara,
Papagni Antonio,
Beverina Luca,
Mustarelli Piercarlo
Publication year - 2021
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202100382
Subject(s) - membrane , chemical stability , electrochemistry , fuel cells , aqueous solution , polymer , platinum , chemical engineering , chemistry , chemical modification , conductivity , ion exchange , inorganic chemistry , ionic bonding , materials science , ionic conductivity , polymer chemistry , electrode , organic chemistry , ion , catalysis , electrolyte , biochemistry , engineering
Anion‐exchange membranes (AEMs) are of growing interest for electrochemical devices such as fuel cells and electrolyzers because the alkaline medium allows avoiding the use of platinum and platinum‐group metals as the electrocatalysts. Perfluorinated polymers are a good starting point to prepare AEMs because of their chemical stability and potential high conductivity resulting from the coexistence of hydrophobic main chains and flexible hydrophilic side chains. Here, we report a facile and simple chemical modification of Aquivion® performed in aqueous environment. We obtained a chemically stable membrane with ionic conductivity exceeding 2.5×10 −2 S cm −1 at 80 °C and 100 RH% that was used in a polymer fuel cell.