Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation
Abstract Understanding the dynamic evolution of heterogeneous catalysts is crucial yet challenging for elucidating the structure-performance relationships and enabling rational catalyst design. Herein, we reveal that PtIn alloy clusters gradually evolve into Pt3In intermetallic in response to propyl...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-06-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-60153-1 |
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| author | Tao Zhou Han Yan Wenjie Li Wenjian Zhang Hongtao He Sunpei Hu Ruyang Wang Tianci Xiao Limin Liu Lijun Zhang Wenlong Wu Chengyuan Liu Xusheng Zheng Yang Pan Jie Zeng Xu Li |
| author_facet | Tao Zhou Han Yan Wenjie Li Wenjian Zhang Hongtao He Sunpei Hu Ruyang Wang Tianci Xiao Limin Liu Lijun Zhang Wenlong Wu Chengyuan Liu Xusheng Zheng Yang Pan Jie Zeng Xu Li |
| author_sort | Tao Zhou |
| collection | DOAJ |
| description | Abstract Understanding the dynamic evolution of heterogeneous catalysts is crucial yet challenging for elucidating the structure-performance relationships and enabling rational catalyst design. Herein, we reveal that PtIn alloy clusters gradually evolve into Pt3In intermetallic in response to propylene, the product of propane dehydrogenation (PDH) reaction. Specifically, a PtIn1.0/SiO2 catalyst has been fabricated, comprising sub-nanometric PtIn alloy clusters covered by an In0 overlayer, with In3+ species locating at the metal-support interface. During the PDH reaction propylene induces the evaporation of the In0 overlayer, thereby exposing Pt sites. After an induction period, the evolved Pt3In intermetallic (average size ~1.3 nm) exhibits a C3H6 productivity of 145 mol gPt −1 h−1. The alloyed In0 species effectively dilute Pt-Pt ensembles, enhancing propylene selectivity, while the interfacial In3+ species inhibit aggregation of Pt3In intermetallic, ensuring excellent catalytic stability. These findings underscore the critical role of product molecules in shaping active site evolution at the atomic scale. |
| format | Article |
| id | doaj-art-e01968e092354bf28cf4c05cc507ee04 |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-e01968e092354bf28cf4c05cc507ee042025-08-20T03:10:34ZengNature PortfolioNature Communications2041-17232025-06-0116111010.1038/s41467-025-60153-1Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenationTao Zhou0Han Yan1Wenjie Li2Wenjian Zhang3Hongtao He4Sunpei Hu5Ruyang Wang6Tianci Xiao7Limin Liu8Lijun Zhang9Wenlong Wu10Chengyuan Liu11Xusheng Zheng12Yang Pan13Jie Zeng14Xu Li15Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaSchool of Chemistry & Chemical Engineering, Anhui University of TechnologySchool of Chemistry & Chemical Engineering, Anhui University of TechnologyNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaAbstract Understanding the dynamic evolution of heterogeneous catalysts is crucial yet challenging for elucidating the structure-performance relationships and enabling rational catalyst design. Herein, we reveal that PtIn alloy clusters gradually evolve into Pt3In intermetallic in response to propylene, the product of propane dehydrogenation (PDH) reaction. Specifically, a PtIn1.0/SiO2 catalyst has been fabricated, comprising sub-nanometric PtIn alloy clusters covered by an In0 overlayer, with In3+ species locating at the metal-support interface. During the PDH reaction propylene induces the evaporation of the In0 overlayer, thereby exposing Pt sites. After an induction period, the evolved Pt3In intermetallic (average size ~1.3 nm) exhibits a C3H6 productivity of 145 mol gPt −1 h−1. The alloyed In0 species effectively dilute Pt-Pt ensembles, enhancing propylene selectivity, while the interfacial In3+ species inhibit aggregation of Pt3In intermetallic, ensuring excellent catalytic stability. These findings underscore the critical role of product molecules in shaping active site evolution at the atomic scale.https://doi.org/10.1038/s41467-025-60153-1 |
| spellingShingle | Tao Zhou Han Yan Wenjie Li Wenjian Zhang Hongtao He Sunpei Hu Ruyang Wang Tianci Xiao Limin Liu Lijun Zhang Wenlong Wu Chengyuan Liu Xusheng Zheng Yang Pan Jie Zeng Xu Li Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation Nature Communications |
| title | Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation |
| title_full | Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation |
| title_fullStr | Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation |
| title_full_unstemmed | Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation |
| title_short | Reaction-induced dynamic evolution of PtIn/SiO2 catalyst for propane dehydrogenation |
| title_sort | reaction induced dynamic evolution of ptin sio2 catalyst for propane dehydrogenation |
| url | https://doi.org/10.1038/s41467-025-60153-1 |
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