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Tong T, Douthwaite M, Chen L, Engel R, Conway MB, Guo W, Wu XP, Gong XQ, Wang Y, Morgan DJ, Davies T, Kiely CJ, Chen L, Liu X, Hutchings GJ. Uncovering Structure-Activity Relationships in Pt/CeO 2 Catalysts for Hydrogen-Borrowing Amination. ACS Catal 2023; 13:1207-1220. [PMID: 36714055 PMCID: PMC9872813 DOI: 10.1021/acscatal.2c04347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/10/2022] [Indexed: 01/06/2023]
Abstract
The hydrogen-borrowing amination of alcohols is a promising route to produce amines. In this study, experimental parameters involved in the preparation of Pt/CeO2 catalysts were varied to assess how physicochemical properties influence their performance in such reactions. An amination reaction between cyclopentanol and cyclopentylamine was used as the model reaction for this study. The Pt precursor used in the catalyst synthesis and the properties of the CeO2 support were both found to strongly influence catalytic performance. Aberration corrected scanning transmission electron microscopy revealed that the most active catalyst comprised linearly structured Pt species. The formation of these features, a function result of epitaxial Pt deposition along the CeO2 [100] plane, appeared to be dependent on the properties of the CeO2 support and the Pt precursor used. Density functional theory calculations subsequently confirmed that these sites were more effective for cyclopentanol dehydrogenation-considered to be the rate-determining step of the process-than Pt clusters and nanoparticles. This study provides insights into the desirable catalytic properties required for hydrogen-borrowing amination but has relevance to other related fields. We consider that this study will provide a foundation for further study in this atom-efficient area of chemistry.
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Affiliation(s)
- Tao Tong
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Mark Douthwaite
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,
| | - Lu Chen
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Rebecca Engel
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Matthew B. Conway
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Wanjun Guo
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Xin-Ping Wu
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Xue-Qing Gong
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China,
| | - Yanqin Wang
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China,
| | - David J. Morgan
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Thomas Davies
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Christopher J. Kiely
- Department
of Materials Science and Engineering, Lehigh
University, 5 East Packer
Avenue, Bethlehem, Pennsylvania18015, United States
| | - Liwei Chen
- School
of Chemistry and Chemical, In-situ Centre for Physical Sciences, Frontiers
Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 200240Shanghai, P. R. China
| | - Xi Liu
- School
of Chemistry and Chemical, In-situ Centre for Physical Sciences, Frontiers
Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 200240Shanghai, P. R. China,
| | - Graham J. Hutchings
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,
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