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Tian J, Kong R, Deng B, Cheng Y, Hu K, Zhong Z, Sun T, Tan M, Chen L, Zhao J, Wang Y, Li X, Zhu Y. Non-Classical Deactivation Mechanism in a Supported Intermetallic Catalyst for Propane Dehydrogenation. Angew Chem Int Ed Engl 2024; 63:e202409556. [PMID: 38988065 DOI: 10.1002/anie.202409556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/01/2024] [Accepted: 07/09/2024] [Indexed: 07/12/2024]
Abstract
Platinum-based supported intermetallic alloys (IMAs) demonstrate exceptional performance in catalytic propane dehydrogenation (PDH) primarily because of their remarkable resistance to coke formation. However, these IMAs still encounter a significant hurdle in the form of catalyst deactivation. Understanding the complex deactivation mechanism of supported IMAs, which goes beyond conventional coke deposition, requires meticulous microscopic structural elucidation. In this study, we unravel a nonclassical deactivation mechanism over a PtZn/γ-Al2O3 PDH catalyst, dictated by the PtZn to Pt3Zn nanophase transformation accompanied with dezincification. The physical origin lies in the metal support interaction (MSI) that enables strong chemical bonding between hydroxyl groups on the support and Zn sites on the PtZn phase to selectively remove Zn species followed by the reconstruction towards Pt3Zn phase. Building on these insights, we have devised a solution to circumvent the deactivation by passivating the MSI through surface modification of γ-Al2O3 support. By exchanging protons of hydroxyl groups with potassium ions (K) on the γ-Al2O3 support, such a strategy significantly minimizes the dezincification of PtZn IMA via diminished metal-support bonding, which dramatically reduces the deactivation rate from 0.2044 to 0.0587 h-1. These findings decode the nonclassical PDH deactivation mechanism over supported IMA catalysts and elaborate a new logic for the design of high-performance IMA based PDH catalysts with long-term stability.
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Affiliation(s)
- Jinshu Tian
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Ru Kong
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Bin Deng
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Yi Cheng
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Kerou Hu
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Zhangnan Zhong
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Tulai Sun
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Mingwu Tan
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Luwei Chen
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Jia Zhao
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Yong Wang
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Xiaonian Li
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
| | - Yihan Zhu
- Center for Electron Microscopy, College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou, 3100144, P. R. China
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2
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Wei P, Chen S, Luo R, Sun G, Wu K, Fu D, Zhao ZJ, Pei C, Yan N, Gong J. Stable and homogeneous intermetallic alloys by atomic gas-migration for propane dehydrogenation. Nat Commun 2024; 15:8157. [PMID: 39289393 PMCID: PMC11408692 DOI: 10.1038/s41467-024-52518-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 09/11/2024] [Indexed: 09/19/2024] Open
Abstract
Intermetallic nanoparticles (NPs) possess significant potentials for catalytic applications, yet their production presents challenges as achieving the disorder-to-order transition during the atom ordering process involves overcoming a kinetic energy barrier. Here, we demonstrate a robust approach utilizing atomic gas-migration for the in-situ synthesis of stable and homogeneous intermetallic alloys for propane dehydrogenation (PDH). This approach relies on the physical mixture of two separately supported metal species in one reactor. The synthesized platinum-zinc intermetallic catalysts demonstrate exceptional stability for 1300 h in continuous propane dehydrogenation under industrially relevant industrial conditions, with extending 95% propylene selectivity and propane conversions approaching thermodynamic equilibrium values at 550-600 oC. In situ characterizations and density functional theory/molecular dynamics simulation reveal Zn atoms adsorb on the particle surface and then diffuse inward, aiding in the formation of ultrasmall and highly ordered intermetallic alloys. This in-situ gas-migration strategy is applicable to a wide range of intermetallic systems.
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Affiliation(s)
- Pingping Wei
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
- National Industry-Education Platform of Energy Storage, Tianjin University, 135 Yaguan Road, Tianjin, 300350, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Sai Chen
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
| | - Ran Luo
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Guodong Sun
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
| | - Kexin Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Donglong Fu
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
| | - Zhi-Jian Zhao
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
- National Industry-Education Platform of Energy Storage, Tianjin University, 135 Yaguan Road, Tianjin, 300350, China
| | - Chunlei Pei
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China
| | - Ning Yan
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Jinlong Gong
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.
- School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University; Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin, 300350, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
- National Industry-Education Platform of Energy Storage, Tianjin University, 135 Yaguan Road, Tianjin, 300350, China.
- Tianjin Normal University, Tianjin, 300387, China.
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3
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Nerl HC, Plodinec M, Götsch T, Skorupska K, Schlögl R, Jones TE, Lunkenbein T. In Situ Formation of Platinum-Carbon Catalysts in Propane Dehydrogenation. Angew Chem Int Ed Engl 2024; 63:e202319887. [PMID: 38603634 DOI: 10.1002/anie.202319887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/11/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
The catalytic production of propylene via propane dehydrogenation (PDH) is a key reaction in the chemical industry. By combining operando transmission electron microscopy with density functional theory analysis, we show that the intercalation and ordering of carbon on Pt interstitials to form Pt-C solid solutions is relevant for increasing propylene production. More specifically, we found that at the point of enhanced propylene formation, the structure of platinum nanoparticles is transformed into a transient caesium chloride-type Pt-C polymorph. At more elevated temperatures, the zincblende and rock salt polymorphs seemingly coexist. When propylene production was highest, multiple crystal structures consisting of Pt and carbon were occasionally found to coexist in one individual nanoparticle, distorting the Pt lattice. Catalyst coking was detected at all stages of the reaction, but did initially not affect all particles. These findings could lead to the development of novel synthesis strategies towards tailoring highly efficient PDH catalysts.
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Affiliation(s)
- Hannah C Nerl
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Milivoj Plodinec
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Thomas Götsch
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Katarzyna Skorupska
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
- Department of Heterogeneous Reactions, Max Planck Institute of Chemical Energy Conversion, Stiftstraße 34-36, 45470, Mülheim a.d. Ruhr, Germany
| | - Travis E Jones
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Thomas Lunkenbein
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
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4
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Pei C, Chen S, Fu D, Zhao ZJ, Gong J. Structured Catalysts and Catalytic Processes: Transport and Reaction Perspectives. Chem Rev 2024; 124:2955-3012. [PMID: 38478971 DOI: 10.1021/acs.chemrev.3c00081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
The structure of catalysts determines the performance of catalytic processes. Intrinsically, the electronic and geometric structures influence the interaction between active species and the surface of the catalyst, which subsequently regulates the adsorption, reaction, and desorption behaviors. In recent decades, the development of catalysts with complex structures, including bulk, interfacial, encapsulated, and atomically dispersed structures, can potentially affect the electronic and geometric structures of catalysts and lead to further control of the transport and reaction of molecules. This review describes comprehensive understandings on the influence of electronic and geometric properties and complex catalyst structures on the performance of relevant heterogeneous catalytic processes, especially for the transport and reaction over structured catalysts for the conversions of light alkanes and small molecules. The recent research progress of the electronic and geometric properties over the active sites, specifically for theoretical descriptors developed in the recent decades, is discussed at the atomic level. The designs and properties of catalysts with specific structures are summarized. The transport phenomena and reactions over structured catalysts for the conversions of light alkanes and small molecules are analyzed. At the end of this review, we present our perspectives on the challenges for the further development of structured catalysts and heterogeneous catalytic processes.
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Affiliation(s)
- Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Donglong Fu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
- National Industry-Education Platform of Energy Storage, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
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5
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Zhou H, Docherty SR, Phongprueksathat N, Chen Z, Bukhtiyarov AV, Prosvirin IP, Safonova OV, Urakawa A, Copéret C, Müller CR, Fedorov A. Combining Atomic Layer Deposition with Surface Organometallic Chemistry to Enhance Atomic-Scale Interactions and Improve the Activity and Selectivity of Cu-Zn/SiO 2 Catalysts for the Hydrogenation of CO 2 to Methanol. JACS AU 2023; 3:2536-2549. [PMID: 37772188 PMCID: PMC10523371 DOI: 10.1021/jacsau.3c00319] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 09/30/2023]
Abstract
The direct synthesis of methanol via the hydrogenation of CO2, if performed efficiently and selectively, is potentially a powerful technology for CO2 mitigation. Here, we develop an active and selective Cu-Zn/SiO2 catalyst for the hydrogenation of CO2 by introducing copper and zinc onto dehydroxylated silica via surface organometallic chemistry and atomic layer deposition, respectively. At 230 °C and 25 bar, the optimized catalyst shows an intrinsic methanol formation rate of 4.3 g h-1 gCu-1 and selectivity to methanol of 83%, with a space-time yield of 0.073 g h-1 gcat-1 at a contact time of 0.06 s g mL-1. X-ray absorption spectroscopy at the Cu and Zn K-edges and X-ray photoelectron spectroscopy studies reveal that the CuZn alloy displays reactive metal support interactions; that is, it is stable under H2 atmosphere and unstable under conditions of CO2 hydrogenation, indicating that the dealloyed structure contains the sites promoting methanol synthesis. While solid-state nuclear magnetic resonance studies identify methoxy species as the main stable surface adsorbate, transient operando diffuse reflectance infrared Fourier transform spectroscopy indicates that μ-HCOO*(ZnOx) species that form on the Cu-Zn/SiO2 catalyst are hydrogenated to methanol faster than the μ-HCOO*(Cu) species that are found in the Zn-free Cu/SiO2 catalyst, supporting the role of Zn in providing a higher activity in the Cu-Zn system.
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Affiliation(s)
- Hui Zhou
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
- Department
of Energy and Power Engineering, Tsinghua
University, 100084 Beijing, China
| | - Scott R. Docherty
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | - Nat Phongprueksathat
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The
Netherlands
| | - Zixuan Chen
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
| | - Andrey V. Bukhtiyarov
- Synchrotron
Radiation Facility SKIF, Boreskov Institute
of Catalysis SB RAS, 630559 Kol’tsovo, Russia
| | | | | | - Atsushi Urakawa
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The
Netherlands
| | - Christophe Copéret
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | - Christoph R. Müller
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
| | - Alexey Fedorov
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
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6
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Zhou N, Liu W, Jan F, Han Z, Li B. Efficient Screening of Metal Promoters of Pt Catalysts for C-H Bond Activation in Propane Dehydrogenation from a Combined First-Principles Calculations and Machine-Learning Study. ACS OMEGA 2023; 8:23982-23990. [PMID: 37426229 PMCID: PMC10324074 DOI: 10.1021/acsomega.3c02675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/22/2023] [Indexed: 07/11/2023]
Abstract
Platinum-based materials are the most widely used catalysts in propane direct dehydrogenation, which could achieve a balanced activity between both propane conversion and propene formation. One of the core issues of Pt catalysts is how to efficiently activate the strong C-H bond. It has been suggested that adding second metal promoters could greatly solve this problem. In the current work, first-principles calculations combined with machine learning are performed in order to obtain the most promising metal promoters and identify key descriptors for control performance. The combination of three different modes of adding metal promoters and two ratios between promoters and platinum sufficiently describes the system under investigation. The activity of propane activation and the formation of propene are reflected by the increase or decrease of the adsorption energy and C-H bond activation of propane and propene after the addition of promoters. The data of adsorption energy and kinetic barriers from first-principles calculations are streamed into five machine-learning methods including gradient boosting regressor (GBR), K neighbors regressor (KNR), random forest regressor (RFR), and AdaBoost regressor (ABR) together with the sure independence screening and sparsifying operator (SISSO). The metrics (RMSE and R2) from different methods indicated that GBR and SISSO have the most optimal performance. Furthermore, it is found that some descriptors derived from the intrinsic properties of metal promoters can determine their properties. In the end, Pt3Mo is identified as the most active catalyst. The present work not only provides a solid foundation for optimizing Pt catalysts but also provides a clear roadmap to screen metal alloy catalysts.
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Affiliation(s)
- Nuodan Zhou
- Shenyang
National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning, People’s
Republic of China
- School
of Materials Science and Engineering, University
of Science and Technology of China, Shenyang 110016, Liaoning, People’s Republic of China
| | - Wen Liu
- School
of Materials Science and Engineering, Zhejiang
University, Hangzhou 310027, China
| | - Faheem Jan
- Shenyang
National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning, People’s
Republic of China
- School
of Materials Science and Engineering, University
of Science and Technology of China, Shenyang 110016, Liaoning, People’s Republic of China
| | - ZhongKang Han
- School
of Materials Science and Engineering, Zhejiang
University, Hangzhou 310027, China
| | - Bo Li
- Institute
of Catalysis for Energy and Environment, College of Chemistry and
Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
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7
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Gan Z, Lu Z, Bunian M, Lagria LB, Marshall CL, Banish RM, Lee S, Lei Y. Synthesis of Pt 3Zn 1 and Pt 1Zn 1 intermetallic nanocatalysts for dehydrogenation of ethane. Phys Chem Chem Phys 2023; 25:7144-7153. [PMID: 36786715 DOI: 10.1039/d2cp04173a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Pt3Zn1 and Pt1Zn1 intermetallic nanoparticles supported on SiO2 were synthesized by combining atomic layer deposition (ALD) of ZnO, incipient wetness impregnation (IWI) of Pt, and appropriate hydrogen reduction. The formation of Pt1Zn1 and Pt3Zn1 intermetallic nanoparticles was observed by both X-ray diffraction (XRD) and synchrotron X-ray absorption spectroscopy (XAS). STEM images showed that the 2-3 nm Pt-based intermetallic nanoparticles were uniformly dispersed on a SiO2 support. The relationships between Pt-Zn intermetallic phases and synthesis conditions were established. In situ XAS measurements at Pt L3 and Zn K edges during hydrogen reduction provided a detailed image of surface species evolution. Owing to a combined electronic and geometric effect, Pt1Zn1 exhibited much higher reactivity and stability than Pt3Zn1 and Pt in both the direct dehydrogenation and oxidative dehydrogenation of ethane to ethylene reactions.
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Affiliation(s)
- Zhuoran Gan
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.
| | - Zheng Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Muntaseer Bunian
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.
| | - Larissa B Lagria
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.
| | - Christopher L Marshall
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - R Michael Banish
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.
| | - Sungsik Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Yu Lei
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.
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8
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Rüther F, Baumgarten R, Ebert F, Gioria E, Naumann d'Alnoncourt R, Trunschke A, Rosowski F. Tuning catalysis by surface-deposition of elements on oxidation catalysts via atomic layer deposition. Catal Sci Technol 2023. [DOI: 10.1039/d2cy02184f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
This study on surface-modifications of bulk oxidation catalysts with sub-monolayers of POx, BOx and MnOxvia atomic layer deposition demonstrates this method to be a powerful tool for tuning the performance in selective oxidations of light alkanes.
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9
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Baumgarten R, Naumann d'Alnoncourt R, Lohr S, Gioria E, Frei E, Fako E, De S, Boscagli C, Drieß M, Schunk S, Rosowski F. Quantification and Tuning of Surface Oxygen Vacancies for the Hydrogenation of CO
2
on Indium Oxide Catalysts. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Robert Baumgarten
- BasCat – UniCat BASF JointLab, Technische Universität Berlin 10623 Berlin Germany
| | | | - Stephen Lohr
- BasCat – UniCat BASF JointLab, Technische Universität Berlin 10623 Berlin Germany
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
| | - Esteban Gioria
- BasCat – UniCat BASF JointLab, Technische Universität Berlin 10623 Berlin Germany
| | - Elias Frei
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
| | - Edvin Fako
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
| | - Sandip De
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
| | | | - Matthias Drieß
- BasCat – UniCat BASF JointLab, Technische Universität Berlin 10623 Berlin Germany
- Technische Universität Berlin Institut für Chemie: Metallorganik und Anorganische Materialien Straße des 17. Juni 135 10623 Berlin Germany
| | - Stephan Schunk
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
- hte GmbH Kurpfalzring 104 69123 Heidelberg Germany
- Universität Leipzig Institut für Technische Chemie Linnéstraße 3 04103 Leipzig Germany
| | - Frank Rosowski
- BasCat – UniCat BASF JointLab, Technische Universität Berlin 10623 Berlin Germany
- BASF SE Carl-Bosch-Straße 38 67056 Ludwigshafen Germany
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10
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Chernyak SA, Corda M, Dath JP, Ordomsky VV, Khodakov AY. Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook. Chem Soc Rev 2022; 51:7994-8044. [PMID: 36043509 DOI: 10.1039/d1cs01036k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Light olefins are important feedstocks and platform molecules for the chemical industry. Their synthesis has been a research priority in both academia and industry. There are many different approaches to the synthesis of these compounds, which differ by the choice of raw materials, catalysts and reaction conditions. The goals of this review are to highlight the most recent trends in light olefin synthesis and to perform a comparative analysis of different synthetic routes using several quantitative characteristics: selectivity, productivity, severity of operating conditions, stability, technological maturity and sustainability. Traditionally, on an industrial scale, the cracking of oil fractions has been used to produce light olefins. Methanol-to-olefins, alkane direct or oxidative dehydrogenation technologies have great potential in the short term and have already reached scientific and technological maturities. Major progress should be made in the field of methanol-mediated CO and CO2 direct hydrogenation to light olefins. The electrocatalytic reduction of CO2 to light olefins is a very attractive process in the long run due to the low reaction temperature and possible use of sustainable electricity. The application of modern concepts such as electricity-driven process intensification, looping, CO2 management and nanoscale catalyst design should lead in the near future to more environmentally friendly, energy efficient and selective large-scale technologies for light olefin synthesis.
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Affiliation(s)
- Sergei A Chernyak
- University of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, France.
| | - Massimo Corda
- University of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, France.
| | - Jean-Pierre Dath
- Direction Recherche & Développement, TotalEnergies SE, TotalEnergies One Tech Belgium, Zone Industrielle Feluy C, B-7181 Seneffe, Belgium
| | - Vitaly V Ordomsky
- University of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, France.
| | - Andrei Y Khodakov
- University of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, France.
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11
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Qi L, Zhang Y, Babucci M, Chen C, Lu P, Li J, Dun C, Hoffman AS, Urban JJ, Tsapatsis M, Bare SR, Han Y, Gates BC, Bell AT. Dehydrogenation of Propane and n-Butane Catalyzed by Isolated PtZn 4 Sites Supported on Self-Pillared Zeolite Pentasil Nanosheets. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liang Qi
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yanfei Zhang
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Melike Babucci
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
- Department of Materials Science and Engineering, Solar Cell Technology, Uppsala University, Uppsala 75103, Sweden
| | - Cailing Chen
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Peng Lu
- Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jingwei Li
- Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Chaochao Dun
- The Molecular Foundry, Lawrence Berkeley National Laboratory Berkeley, Berkeley, California 94720, United States
| | - Adam S. Hoffman
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jeffrey J. Urban
- The Molecular Foundry, Lawrence Berkeley National Laboratory Berkeley, Berkeley, California 94720, United States
| | - Michael Tsapatsis
- Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Simon R. Bare
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Yu Han
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Bruce C. Gates
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Alexis T. Bell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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12
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Govindarajan R, Deolka S, Khaskin E, Fayzullin RR, Pal S, Vasylevskyi S, Khusnutdinova JR. H 2 , B-H, and Si-H Bond Activation and Facile Protonolysis Driven by Pt-Base Metal Cooperation. Chemistry 2022; 28:e202201639. [PMID: 35676220 DOI: 10.1002/chem.202201639] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Indexed: 01/01/2023]
Abstract
We report a series of heterobimetallic Pt/Zn and Pt/Ca complexes to study the effect of proximity of a dicationic base metal on the organometallic Pt species. Varying degrees of Pt⋅⋅⋅Zn and Zn interaction with the bridging Me group are achieved, showcasing snapshots of a hypothetical process of retrotransmetalation from Pt to Zn. In contrast, only weak interactions were observed for Ca with a Pt-bound Me group. Activation of H2 , B-H and Si-H bonds leads to the formation of hydride-bridged Pt-H-Zn complexes, which is not observed in the absence of Zn, pointing out the importance of metal-metal cooperation. Reactivity of PtMe2 /M2+ with terminal acetylene, water and methanol is also studied, leading to facile protonation of one of the Me groups at the Pt center only when Zn is present. This study sheds light on various ways in which the presence of a 2+ metal cation significantly affects the reactivity of a common organoplatinum complex.
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Affiliation(s)
- Ramadoss Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Shubham Deolka
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan, 420088, Russian Federation
| | - Shrinwantu Pal
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Serhii Vasylevskyi
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
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13
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Yang F, Zhang J, Shi Z, Chen J, Wang G, He J, Zhao J, Zhuo R, Wang R. Advanced design and development of catalysts in propane dehydrogenation. NANOSCALE 2022; 14:9963-9988. [PMID: 35815671 DOI: 10.1039/d2nr02208g] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Propane dehydrogenation (PDH) is an industrial technology for direct propylene production, which has received extensive attention and realized large-scale application. At present, the commercial Pt/Cr-based catalysts suffer from fast deactivation and inferior stability resulting from active species sintering and coke depositing. To overcome the above problems, several strategies such as the modification of the support and the introduction of additives have been proposed to strengthen the catalytic performance and prolong the robust stability of Pt/Cr-based catalysts. This review firstly gives a brief description of the development of PDH and PDH catalysts. Then, the advanced research progress of supported noble metals and non-noble metals together with metal-free materials for PDH is systematically summarized along with the material design and active origin as well as the existing problems in the development of PDH catalysts. Furthermore, the review also emphasizes advanced synthetic strategies based on novel design of PDH catalysts with improved dehydrogenation activity and stability. Finally, the future challenges and directions of PDH catalysts are provided for the development of their further industrial application.
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Affiliation(s)
- Fuwen Yang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Zongbo Shi
- REZEL Catalysts Corporation, Shanghai 200120, China
| | - Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Junjie He
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Junyu Zhao
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | | | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China
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14
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Baumgarten R, Ingale P, Knemeyer K, Naumann d’Alnoncourt R, Driess M, Rosowski F. Synthesis of High Surface Area-Group 13-Metal Oxides via Atomic Layer Deposition on Mesoporous Silica. NANOMATERIALS 2022; 12:nano12091458. [PMID: 35564168 PMCID: PMC9104076 DOI: 10.3390/nano12091458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/14/2022] [Accepted: 04/21/2022] [Indexed: 12/10/2022]
Abstract
The atomic layer deposition of gallium and indium oxide was investigated on mesoporous silica powder and compared to the related aluminum oxide process. The respective oxide (GaOx, InOx) was deposited using sequential dosing of trimethylgallium or trimethylindium and water at 150 °C. In-situ thermogravimetry provided direct insight into the growth rates and deposition behavior. The highly amorphous and well-dispersed nature of the oxides was shown by XRD and STEM EDX-mappings. N2 sorption analysis revealed that both ALD processes resulted in high specific surface areas while maintaining the pore structure. The stoichiometry of GaOx and InOx was suggested by thermogravimetry and confirmed by XPS. FTIR and solid-state NMR were conducted to investigate the ligand deposition behavior and thermogravimetric data helped estimate the layer thicknesses. Finally, this study provides a deeper understanding of ALD on powder substrates and enables the precise synthesis of high surface area metal oxides for catalytic applications.
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Affiliation(s)
- Robert Baumgarten
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
| | - Piyush Ingale
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
| | - Kristian Knemeyer
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
| | - Raoul Naumann d’Alnoncourt
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
- Correspondence: ; Tel.: +49-30-314-73683
| | - Matthias Driess
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
- Institut für Chemie: Metallorganik und Anorganische Materialien, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Frank Rosowski
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenberstraße 36, 10623 Berlin, Germany; (R.B.); (P.I.); (K.K.); (M.D.); (F.R.)
- Process Research and Chemical Engineering, BASF SE, Carl-Bosch-Straße 38, 67056 Ludwigshafen, Germany
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15
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Propylene Synthesis: Recent Advances in the Use of Pt-Based Catalysts for Propane Dehydrogenation Reaction. Catalysts 2021. [DOI: 10.3390/catal11091070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Propylene is one of the most important feedstocks in the chemical industry, as it is used in the production of widely diffused materials such as polypropylene. Conventionally, propylene is obtained by cracking petroleum-derived naphtha and is a by-product of ethylene production. To ensure adequate propylene production, an alternative is needed, and propane dehydrogenation is considered the most interesting process. In literature, the catalysts that have shown the best performance in the dehydrogenation reaction are Cr-based and Pt-based. Chromium has the non-negligible disadvantage of toxicity; on the other hand, platinum shows several advantages, such as a higher reaction rate and stability. This review article summarizes the latest published results on the use of platinum-based catalysts for the propane dehydrogenation reaction. The manuscript is based on relevant articles from the past three years and mainly focuses on how both promoters and supports may affect the catalytic activity. The published results clearly show the crucial importance of the choice of the support, as not only the use of promoters but also the use of supports with tuned acid/base properties and particular shape can suppress the formation of coke and prevent the deep dehydrogenation of propylene.
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16
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Han SW, Park H, Han J, Kim JC, Lee J, Jo C, Ryoo R. PtZn Intermetallic Compound Nanoparticles in Mesoporous Zeolite Exhibiting High Catalyst Durability for Propane Dehydrogenation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01808] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Seung Won Han
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hongjun Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Jongho Han
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Jeong-Chul Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - John Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Changbum Jo
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Ryong Ryoo
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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17
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Zhang Z, He D, Huang Z, He S, Lu J, Luo Y. Flowing-Air-Induced Transformation to Promote the Dispersion of the CrO x Catalyst for Propane Dehydrogenation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:19873-19883. [PMID: 33877819 DOI: 10.1021/acsami.0c22759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Highly dispersed chromium (Cr)-based catalysts are promising candidates for the catalytic dehydrogenation of propane (DHP). However, the easier aggregation of Cr species into crystalline Cr2O3 at the high-temperature calcination and reaction process is a big challenge, which severely restricts the improvement of activity and stability of the DHP reaction. Herein, a flowing-air-induced transformation method was first proposed, and the catalytic performance of the prepared Cr/MCM-41 catalysts was found to be significantly improved compared to that of the Cr-based catalyst prepared by the traditional calcination method, even better than that of most of the reported Cr-based catalysts and some noble metal-based catalysts. X-ray absorption spectroscopy and in situ Raman spectroscopy as well as other characterization techniques demonstrated that the in situ calcination in flowing air could not only effectively restrain the conversion of Cr(VI) into Cr(III) but also largely improve the dispersion of Cr species. Furthermore, DHP activity is found to have a positive correlation with the amount of monomeric Cr(VI) species, which is proved to be the precursor of active coordinatively unsaturated Cr sites. Our proposed flowing-air-induced transformation method provides a general strategy for preparing the highly dispersed Cr-based catalysts and other metal oxide materials with varied valence and exhibits potential application prospects in industry.
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Affiliation(s)
- Zhewei Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
| | - Dedong He
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
| | - Zijun Huang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
| | - Sufang He
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
| | - Jichang Lu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
| | - Yongming Luo
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China
- The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
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Zhang L, Liu X, Wang H, Cao L, Huang C, Li S, Zhang X, Guan Q, Shao X, Lu J. Size-dependent strong metal–support interaction in Pd/ZnO catalysts for hydrogenation of CO 2 to methanol. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00606a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Size-dependent strong metal–support interactions govern both the activity and selectivity decisively.
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