Dongguk University Develops Efficient Metal-Single Atom Catalysts for Green Hydrogen Production
Researchers at Dongguk University in South Korea have developed a novel synthesis method for metal single-atom catalysts (M-SACs) that significantly improves hydrogen production via proton-exchange-membrane water electrolysis. The new catalysts, specifically β-PtS, achieved an impressive low overpotential of 15 millivolts and demonstrated turnover frequencies 72-78 times higher than traditional Pt/C catalysts, maintaining their performance for over 10 days. This advancement highlights the potential for industrial applications and could enhance the economic viability of hydrogen as an alternative to fossil fuels.
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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.
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