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Researchers at Dongguk University in South Korea have developed a new synthesis method for metal single-atom catalysts (M-SACs) that enhances hydrogen production through proton-exchange-membrane water electrolysis (PEMWE). Led by Assistant Professor Jitendra N.

Tiwari and Professor Young-Kyu Han, the team utilized metal hydroxides as sacrificial templates in a two-step high-temperature heat-treatment process to prevent the aggregation of metal atoms, resulting in atomically dispersed catalysts. The catalysts, specifically β-PtS, achieved a low overpotential of 15 millivolts and demonstrated turnover frequencies 72-78 times greater than commercial Pt/C catalysts.

They maintained performance and structure for over 10 days of continuous testing and surpassed the U.S. Department of Energy's 2026 target. The research indicates significant potential for industrial applications and may enhance the economic competitiveness of hydrogen against fossil fuels.