Cover Feature: Beyond Small Molecular Cations: Elucidating the Alkaline Stability of Cationic Moieties at the Membrane Scale (ChemSusChem 5/2024)

The Cover Feature shows a molecularly designed anion-exchange membrane (AEM) with alternating cationic moieties to compare the alkaline stability of cations at the membrane scale in an unbiased manner. In-situ and ex-situ durability tests and theoretical results show that pendant alkyltrimethylammonium has a long alkaline lifetime relative to piperidinium cations. This finding provides new insights into advanced membrane development for alkaline electrochemical energy devices. More information can be found in the Research Article by H. Wei, Y. Ding and co-workers.