Recent advances in understanding catalyst coated membranes vs catalyst coated substrates for AEM electrolysers

Title data

Titheridge, Laura ; Sharma, Shailendra K. ; Soisson, Anouk ; Roth, Christina ; Marshall, Aaron T.:
Recent advances in understanding catalyst coated membranes vs catalyst coated substrates for AEM electrolysers.
In: Current Opinion in Electrochemistry. (2 December 2024) . - 101607.
ISSN 2451-9103
DOI: https://doi.org/10.1016/j.coelec.2024.101607

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Abstract in another language

There is growing interest in anion exchange membrane water electrolysers
(AEMWE) as the need for lower-cost, green H2 production technologies
compatible with intermittent variable renewable energy sources grows. Es-
pecially given their unique ability to utilise low-cost, non-PGM materials
in the alkaline environment, enabling them to readily lower system capital
cost and avoid problems from material criticality. This review outlines re-
cent advances in understanding the membrane electrode assembly (MEA) in
AEMWEs, specifically the influence of catalyst-coated substrate (CCS) and
catalyst-coated membrane (CCM) assembly methods on cell performance and
durability. The aim of this review is to identify the current level of material
and cell assembly development and highlight aspects that would benefit from
further work in order to demonstrate the technological and cost feasibility of
AEMWE and direct them toward commercial viability.