Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions
Quantitative assessments of the geometric influence on catalytic activity are crucial for catalyst design and understanding reaction mechanisms. In this study, we synthesized a series of catalysts comprising TiO<sub>2</sub>-supported Pt nanoparticles with varying particle sizes, which we...
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MDPI AG
2025-06-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/13/6/186 |
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| author | Qi Zhang Tianbo Li Xiang-Ting Min Shu-Xian Li Xunzhu Jiang Qian Zhang Yangyang Li Xinlong Yan Rui Feng Feifei Yang Wei Zhou Xiaoyan Hu Botao Qiao Zhonghai Ni |
| author_facet | Qi Zhang Tianbo Li Xiang-Ting Min Shu-Xian Li Xunzhu Jiang Qian Zhang Yangyang Li Xinlong Yan Rui Feng Feifei Yang Wei Zhou Xiaoyan Hu Botao Qiao Zhonghai Ni |
| author_sort | Qi Zhang |
| collection | DOAJ |
| description | Quantitative assessments of the geometric influence on catalytic activity are crucial for catalyst design and understanding reaction mechanisms. In this study, we synthesized a series of catalysts comprising TiO<sub>2</sub>-supported Pt nanoparticles with varying particle sizes, which were systematically evaluated in representative hydrogenation reactions. A consistent size–activity relationship is established, wherein overall turnover frequency (TOF) values (TOF<sub>overall</sub>: calculated as moles of reactant converted per mole of Pt per hour) are modeled as functions of the average diameter of the supported Pt particles, yielding slope values consistently near −1 across a variety of common substrates. This finding underscores that catalytic activity predominantly originates from surface sites on the Pt nanoparticles rather than from interfacial, edge, or corner active sites. |
| format | Article |
| id | doaj-art-a4d8a4feaa1f46cbb553a486a01ba90f |
| institution | Matheson Library |
| issn | 2304-6740 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj-art-a4d8a4feaa1f46cbb553a486a01ba90f2025-06-25T13:58:00ZengMDPI AGInorganics2304-67402025-06-0113618610.3390/inorganics13060186Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation ReactionsQi Zhang0Tianbo Li1Xiang-Ting Min2Shu-Xian Li3Xunzhu Jiang4Qian Zhang5Yangyang Li6Xinlong Yan7Rui Feng8Feifei Yang9Wei Zhou10Xiaoyan Hu11Botao Qiao12Zhonghai Ni13School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaCAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, ChinaQuantitative assessments of the geometric influence on catalytic activity are crucial for catalyst design and understanding reaction mechanisms. In this study, we synthesized a series of catalysts comprising TiO<sub>2</sub>-supported Pt nanoparticles with varying particle sizes, which were systematically evaluated in representative hydrogenation reactions. A consistent size–activity relationship is established, wherein overall turnover frequency (TOF) values (TOF<sub>overall</sub>: calculated as moles of reactant converted per mole of Pt per hour) are modeled as functions of the average diameter of the supported Pt particles, yielding slope values consistently near −1 across a variety of common substrates. This finding underscores that catalytic activity predominantly originates from surface sites on the Pt nanoparticles rather than from interfacial, edge, or corner active sites.https://www.mdpi.com/2304-6740/13/6/186catalytic hydrogenationsize–activity relationshipgeometric influencenano-catalysishydrogen spillover |
| spellingShingle | Qi Zhang Tianbo Li Xiang-Ting Min Shu-Xian Li Xunzhu Jiang Qian Zhang Yangyang Li Xinlong Yan Rui Feng Feifei Yang Wei Zhou Xiaoyan Hu Botao Qiao Zhonghai Ni Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions Inorganics catalytic hydrogenation size–activity relationship geometric influence nano-catalysis hydrogen spillover |
| title | Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions |
| title_full | Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions |
| title_fullStr | Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions |
| title_full_unstemmed | Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions |
| title_short | Size-Activity Relationship of TiO<sub>2</sub>-Supported Pt Nanoparticles in Hydrogenation Reactions |
| title_sort | size activity relationship of tio sub 2 sub supported pt nanoparticles in hydrogenation reactions |
| topic | catalytic hydrogenation size–activity relationship geometric influence nano-catalysis hydrogen spillover |
| url | https://www.mdpi.com/2304-6740/13/6/186 |
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