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✅   Green hydrogen: A cage structured material transforms into a performant catalyst

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Clathrates are characterized by a complex cage structure that provides space for guest ions too. Now a team has investigated the suitability of clathrates as catalysts for electrolytic hydrogen production with impressive results: the clathrate sample was even more efficient and robust than currently used nickel-based catalysts. They also found a reason for this enhanced performance. Measurements at BESSY II showed that the clathrates undergo structural changes during the catalytic reaction: the three-dimensional cage structure decays into ultra-thin nanosheets that allow maximum contact with active catalytic centers.

Science Daily     Apr 17, 2025