A graphic summarizes the performance of a cobalt-optimized, non-precious-metal catalyst used in an anion-exchange membrane water electrolysis system. Image courtesy of Chung-Ang University

June 15 (Asia Today) -- South Korean researchers have developed a catalyst that could substantially reduce the cost of producing green hydrogen while delivering performance and durability comparable to catalysts made with expensive precious metals.

A research team led by Professor Don-Hyung Ha of Chung-Ang University developed multimetallic phosphide nanoparticles that do not require platinum, iridium or other costly precious metals, the university said Monday.

The research was conducted jointly with a team led by Professor Inho Nam of Chung-Ang University's Department of Chemical Engineering and researchers led by Sung Jong Yoo of the Korea Institute of Science and Technology's Center for Hydrogen and Fuel Cells.

The catalyst was used to build a high-performance anion-exchange membrane water electrolysis system, a technology considered a potential lower-cost option for producing clean hydrogen.