Porous Organic Polymers as Ionomers for High-Performance Alkaline Membrane Water Electrolysis.

ABSTRACT: Sustainable hydrogen production is focused on anion exchange membrane (AEM) water electrolyzers (AEMWEs), which still require more development to achieve high performance and durability. Here, we propose a novel class of porous organic polymers (POPs) as durable solid-ionomers for AEMWEs, which was prepared by reacting the 4-methylpiperidone with trifunctional or a mixture of trifunctional:difunctional aromatic monomers (in a 2 : 3 mol ratio). The resulting POP ionomers exhibited exceptional electrochemical properties and remarkable alkaline stability. Particularly noteworthy are the corresponding AEMWEs, which showed an outstanding current density of 13.4 A cm^-2 at 2.0 V under 80 °C in 1 M KOH solution, which is the highest performance reported in the particulate-ionomers AEMWE

SUBMITTER: Rico-Martinez S 

PROVIDER: S-EPMC11789988 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature