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Here, we report a SiO<jats:sub>2<\/jats:sub> supported nanometric (MnCoCuZnPt) high\u2010entropy PDH catalyst with high activity and stability. The catalyst exhibited a super high propane conversion of 56.6\u2009% with 94\u2009% selectivity of propylene at 600\u2009\u00b0C. The propylene productivity reached 68.5\u2005mol<jats:sub>C3H6<\/jats:sub>\u2009\u22c5\u2009g<jats:sub>Pt<\/jats:sub><jats:sup>\u22121<\/jats:sup>\u2009\u22c5\u2009h<jats:sup>\u22121<\/jats:sup>, nearly three times that of Pt\/SiO<jats:sub>2<\/jats:sub> (23.5\u2005mol<jats:sub>C3H6<\/jats:sub>\u2009\u22c5\u2009g<jats:sub>Pt<\/jats:sub><jats:sup>\u22121<\/jats:sup>\u2009\u22c5\u2009h<jats:sup>\u22121<\/jats:sup>) under a weight hourly space velocity of 60\u2005h<jats:sup>\u22121<\/jats:sup>. In a high\u2010entropy nanoparticle, Pt atoms were atomically dispersed through coordination with other metals and exhibited a positive charge, thereby showcasing remarkable catalytic activity. The high\u2010entropy effect contributes to the catalyst a superior stability with a low deactivation constant of 0.0004\u2005h<jats:sup>\u22121<\/jats:sup> during 200\u2005hours of reaction under the industrial gas composition at 550\u2009\u00b0C. Such high\u2010entropy PDH catalyst is easy regenerated through simple air combustion of deposited coke. After the fourth consecutive regeneration cycle, satisfactory catalytic stability was observed, and the element distribution of spent catalysts almost returned to their initial state, with no detectable Pt sintering. This work provides new insights into designing active, stable, and regenerable novel PDH catalysts.<\/jats:p>","DOI":"10.1002\/anie.202410835","type":"journal-article","created":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T07:59:02Z","timestamp":1721807942000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["An Active and Regenerable Nanometric High\u2010Entropy Catalyst for Efficient Propane Dehydrogenation"],"prefix":"10.1002","author":[{"given":"Shu\u2010Zhen","family":"Zhou","sequence":"first","affiliation":[{"name":"State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering Dalian University of Technology  Dalian 116024 P. R. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ya\u2010Dong","family":"Xie","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering Dalian University of Technology  Dalian 116024 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haowei","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering Dalian University of Technology  Dalian 116024 P. R. 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