Polymer Backbone Chemistry Shapes the Alkaline Stability of Metallopolymer Anion‐Exchange Membranes

Abstract: Anion‐exchange membrane fuel cells and water electrolyzers have garnered significant attention in past years due to their potential role in sustainable and affordable energy conversion and storage. However, the chemical stability of the polymeric anion‐exchange membranes (AEMs), the key component in these devices, currently limits their lifespan. Recently, metallopolymers have been proposed as chemically stable alternatives to organic cations, using metal centers as ion transporters. In metallopolymer AEMs, various properties such as alkaline stability, water uptake, flexibility, and performance, are determined by both the metal complex and polymer backbone. Herein we present a systematic study investigating the influence of the polymer backbone chemistry on some of these properties, focusing on the alkaline stability of low‐oxophilicity gold metallopolymers. Despite the use of a common N‐heterocyclic carbene ligand, upon gold metalation using the same reaction conditions, different polymer backbones end up forming different gold complexes. These findings suggest that polymer chemistry affects the metalation reaction in addition to the other properties relevant to AEM performance.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Polymer Backbone Chemistry Shapes the Alkaline Stability of Metallopolymer Anion‐Exchange Membranes ; day:19 ; month:02 ; year:2024 ; extent:6 ; Chemistry - a European journal ; (19.02.2024) (gesamt 6)

Beteiligte, Orts- und Zeitangaben

• Urheber: Aggarwal, Kanika ; Li, Songlin ; Nijem, Sally ; Dekel, Dario R. ; Diesendruck, Charles E.

Weitere Informationen

• DOI: 10.1002/chem.202400029
• URN: urn:nbn:de:101:1-2024022114200372667171
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:46 MESZ