A research team has successfully designed and developed a proprietary non-precious metal oxygen evolution reaction (OER) catalyst featuring a layered structure optimized for anion exchange membrane water electrolysis (AEMWE) environments.

The study, published in the journal ACS Nano, is particularly significant in that it proposes a novel catalyst design strategy capable of simultaneously achieving high efficiency and durability while reducing reliance on expensive precious metal catalysts. The team was led by Dr. Sung Mook Choi of the Energy & Environment Materials Research Division at the Korea Institute of Materials Science (KIMS), in collaboration with a team headed by Professor Seung-Hwa Lee at Changwon National University.

Anion exchange membrane water electrolysis (AEMWE) operates under alkaline conditions, offering a structural advantage in that relatively low-cost non-precious metal catalysts can be employed in place of expensive precious metals. For this reason, AEMWE has attracted considerable attention as a cost-effective and inherently safe hydrogen production technology.