51
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Howe RF, Suwardiyanto, Price DJ, Castro M, Wright PA, Greenaway A, Frogley MD, Cinque G. Reactions of Dimethylether in Single Crystals of the Silicoaluminophosphate STA-7 Studied via Operando Synchrotron Infrared Microspectroscopy. Top Catal 2018; 61:199-212. [PMID: 30956505 PMCID: PMC6413811 DOI: 10.1007/s11244-018-0890-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Synchrotron infrared micro-spectroscopy has been applied to measure in situ the reaction of dimethylether in single crystals of the silicoaluminophosphate STA-7. The crystals are found to contain a uniform and homogeneous distribution of acidic hydroxyl groups. Dimethylether is hydrogen bonded to the hydroxyl groups at low temperatures, but evidence is found for dissociation to form surface methoxy groups above 473 K, and aromatic hydrocarbon pool species above 573 K. From time resolved infrared measurements coupled with MS analysis of evolved products it is concluded that alkene formation occurs via a direct mechanism from reaction of dimethylether with surface methoxy groups. GRAPHICAL ABSTRACT
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Affiliation(s)
- Russell F. Howe
- Chemistry Department, University of Aberdeen, Aberdeen, AB24 3UE UK
| | - Suwardiyanto
- Chemistry Department, University of Aberdeen, Aberdeen, AB24 3UE UK
- Chemistry Department, University of Jember, Jember, Jawa Timur 68121 Indonesia
| | - David J. Price
- EastCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST UK
| | - Maria Castro
- EastCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST UK
| | - Paul A. Wright
- EastCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST UK
| | - Alex Greenaway
- EastCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST UK
- EPSRC Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, OX11 0FA UK
| | - Mark D. Frogley
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE UK
| | - Gianfelice Cinque
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE UK
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52
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Plessow PN, Studt F. Olefin methylation and cracking reactions in H-SSZ-13 investigated with ab initio and DFT calculations. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01194j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The olefin cycle of the methanol-to-olefins process is investigated for the zeolite H-SSZ-13 using periodic, van-der-Waals corrected DFT calculations, together with MP2 corrections derived from cluster models, which are essential for accurate barriers.
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Affiliation(s)
- Philipp N. Plessow
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology
- D-76344 Eggenstein-Leopoldshafen
- Germany
- Institute for Chemical Technology and Polymer Chemistry
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53
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Foppa L, Margossian T, Kim SM, Müller C, Copéret C, Larmier K, Comas-Vives A. Contrasting the Role of Ni/Al 2O 3 Interfaces in Water-Gas Shift and Dry Reforming of Methane. J Am Chem Soc 2017; 139:17128-17139. [PMID: 29077396 DOI: 10.1021/jacs.7b08984] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Transition metal nanoparticles (NPs) are typically supported on oxides to ensure their stability, which may result in modification of the original NP catalyst reactivity. In a number of cases, this is related to the formation of NP/support interface sites that play a role in catalysis. The metal/support interface effect verified experimentally is commonly ascribed to stronger reactants adsorption or their facile activation on such sites compared to bare NPs, as indicated by DFT-derived potential energy surfaces (PESs). However, the relevance of specific reaction elementary steps to the overall reaction rate depends on the preferred reaction pathways at reaction conditions, which usually cannot be inferred based solely on PES. Hereby, we use a multiscale (DFT/microkinetic) modeling approach and experiments to investigate the reactivity of the Ni/Al2O3 interface toward water-gas shift (WGS) and dry reforming of methane (DRM), two key industrial reactions with common elementary steps and intermediates, but held at significantly different temperatures: 300 vs 650 °C, respectively. Our model shows that despite the more energetically favorable reaction pathways provided by the Ni/Al2O3 interface, such sites may or may not impact the overall reaction rate depending on reaction conditions: the metal/support interface provides the active site for WGS reaction, acting as a reservoir for oxygenated species, while all Ni surface atoms are active for DRM. This is in contrast to what PESs alone indicate. The different active site requirement for WGS and DRM is confirmed by the experimental evaluation of the activity of a series of Al2O3-supported Ni NP catalysts with different NP sizes (2-16 nm) toward both reactions.
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Affiliation(s)
- Lucas Foppa
- Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
| | - Tigran Margossian
- Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
| | - Sung Min Kim
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zurich , Leonhardstrasse 21, CH-8092 Zurich, Switzerland
| | - Christoph Müller
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zurich , Leonhardstrasse 21, CH-8092 Zurich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
| | - Kim Larmier
- Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
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54
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Plessow PN, Studt F. Unraveling the Mechanism of the Initiation Reaction of the Methanol to Olefins Process Using ab Initio and DFT Calculations. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03114] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philipp N. Plessow
- Institute
of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Felix Studt
- Institute
of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
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55
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Borodina E, Sharbini Harun Kamaluddin H, Meirer F, Mokhtar M, Asiri AM, Al-Thabaiti SA, Basahel SN, Ruiz-Martinez J, Weckhuysen BM. Influence of the Reaction Temperature on the Nature of the Active and Deactivating Species During Methanol-to-Olefins Conversion over H-SAPO-34. ACS Catal 2017; 7:5268-5281. [PMID: 28824823 PMCID: PMC5557614 DOI: 10.1021/acscatal.7b01497] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/21/2017] [Indexed: 11/29/2022]
Abstract
The selectivity toward lower olefins during the methanol-to-olefins conversion over H-SAPO-34 at reaction temperatures between 573 and 773 K has been studied with a combination of operando UV-vis diffuse reflectance spectroscopy and online gas chromatography. It was found that the selectivity toward propylene increases in the temperature range of 573-623 K, while it decreases in the temperature range of 623-773 K. The high degree of incorporation of olefins, mainly propylene, into the hydrocarbon pool affects the product selectivity at lower reaction temperatures. The nature and dynamics of the active and deactivating hydrocarbon species with increasing reaction temperature were revealed by a non-negative matrix factorization of the time-resolved operando UV-vis diffuse reflectance spectra. The active hydrocarbon pool species consist of mainly highly methylated benzene carbocations at temperatures between 573 and 598 K, of both highly methylated benzene carbocations and methylated naphthalene carbocations at 623 K, and of only methylated naphthalene carbocations at temperatures between 673 and 773 K. The operando spectroscopy results suggest that the nature of the active species also influences the olefin selectivity. In fact, monoenylic and highly methylated benzene carbocations are more selective to the formation of propylene, whereas the formation of the group of low methylated benzene carbocations and methylated naphthalene carbocations at higher reaction temperatures (i.e., 673 and 773 K) favors the formation of ethylene. At reaction temperatures between 573 and 623 K, catalyst deactivation is caused by the gradual filling of the micropores with methylated naphthalene carbocations, while between 623 and 773 K the formation of neutral poly aromatics and phenanthrene/anthracene carbocations are mainly responsible for catalyst deactivation, their respective contribution increasing with increasing reaction temperature. Methanol pulse experiments at different temperatures demonstrate the dynamics between methylated benzene and methylated naphthalene carbocations. It was found that methylated naphthalene carbocations species are deactivating and block the micropores at low reaction temperatures, while acting as the active species at higher reaction temperatures, although they give rise to the formation of extended hydrocarbon deposits.
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Affiliation(s)
- E. Borodina
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - H. Sharbini Harun Kamaluddin
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
- Department
of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - F. Meirer
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - M. Mokhtar
- Department
of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - A. M. Asiri
- Department
of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - S. A. Al-Thabaiti
- Department
of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - S. N. Basahel
- Department
of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - J. Ruiz-Martinez
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - B. M. Weckhuysen
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
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56
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Pidko EA. Toward the Balance between the Reductionist and Systems Approaches in Computational Catalysis: Model versus Method Accuracy for the Description of Catalytic Systems. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00290] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Evgeny A. Pidko
- Theoretical Chemistry Group, ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
- Inorganic Materials
Chemistry Group, Schuit Institute of Catalysis, and Institute for Complex Molecular Systems, Eindhoven University of Technology,
P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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57
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Vogt C, Weckhuysen BM, Ruiz‐Martínez J. Effect of Feedstock and Catalyst Impurities on the Methanol-to-Olefin Reaction over H-SAPO-34. ChemCatChem 2017; 9:183-194. [PMID: 28163792 PMCID: PMC5248630 DOI: 10.1002/cctc.201600860] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 11/23/2022]
Abstract
Operando UV/Vis spectroscopy with on-line mass spectrometry was used to study the effect of different types of impurities on the hydrocarbon pool species and the activity of H-SAPO-34 as a methanol-to-olefins (MTO) catalyst. Successive reaction cycles with different purity feedstocks were studied, with an intermittent regeneration step. The combined study of two distinct impurity types (i.e., feed and internal impurities) leads to new insights into MTO catalyst activation and deactivation mechanisms. In the presence of low amounts of feed impurities, the induction and active periods of the process are prolonged. Feed impurities are thus beneficial in the formation of the initial hydrocarbon pool, but also aid in the unwanted formation of deactivating coke species by a separate, competing mechanism favoring coke species over olefins. Further, feedstock impurities strongly influence the location of coke deposits, and thus influence the deactivation mechanism, whereas a study of the organic impurities retained after calcination reveals that these species are less relevant for catalyst activity and function as "seeds" for coke formation only.
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Affiliation(s)
- Charlotte Vogt
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Javier Ruiz‐Martínez
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
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58
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Comas-Vives A, Larmier K, Copéret C. Understanding surface site structures and properties by first principles calculations: an experimental point of view! Chem Commun (Camb) 2017; 53:4296-4303. [DOI: 10.1039/c7cc01101f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Computational Chemistry is key for the molecular-level understanding of active sites in heterogeneous catalysis paving the way to the rational design and development.
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Affiliation(s)
- Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Kim Larmier
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
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59
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Xu S, Zhi Y, Han J, Zhang W, Wu X, Sun T, Wei Y, Liu Z. Advances in Catalysis for Methanol-to-Olefins Conversion. ADVANCES IN CATALYSIS 2017. [DOI: 10.1016/bs.acat.2017.10.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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60
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Chowdhury AD, Houben K, Whiting GT, Mokhtar M, Asiri AM, Al‐Thabaiti SA, Basahel SN, Baldus M, Weckhuysen BM. Initial Carbon-Carbon Bond Formation during the Early Stages of the Methanol-to-Olefin Process Proven by Zeolite-Trapped Acetate and Methyl Acetate. Angew Chem Int Ed Engl 2016; 55:15840-15845. [PMID: 27805783 PMCID: PMC5214583 DOI: 10.1002/anie.201608643] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/18/2016] [Indexed: 11/09/2022]
Abstract
Methanol-to-olefin (MTO) catalysis is a very active field of research because there is a wide variety of sometimes conflicting mechanistic proposals. An example is the ongoing discussion on the initial C-C bond formation from methanol during the induction period of the MTO process. By employing a combination of solid-state NMR spectroscopy with UV/Vis diffuse reflectance spectroscopy and mass spectrometry on an active H-SAPO-34 catalyst, we provide spectroscopic evidence for the formation of surface acetate and methyl acetate, as well as dimethoxymethane during the MTO process. As a consequence, new insights in the formation of the first C-C bond are provided, suggesting a direct mechanism may be operative, at least in the early stages of the MTO reaction.
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Affiliation(s)
- Abhishek Dutta Chowdhury
- Inorganic Chemistry and Catalysis group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Klaartje Houben
- NMR SpectroscopyBijvoet Center for Biomolecular ResearchUtrecht UniversityPadualaan 83584 CHUtrechtThe Netherlands
| | - Gareth T. Whiting
- Inorganic Chemistry and Catalysis group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Mohamed Mokhtar
- Department of ChemistryKing Abdulaziz UniversityP.O. Box 8020321589JeddahSaudi Arabia
| | - Abdullah M. Asiri
- Department of ChemistryKing Abdulaziz UniversityP.O. Box 8020321589JeddahSaudi Arabia
| | - Shaeel A. Al‐Thabaiti
- Department of ChemistryKing Abdulaziz UniversityP.O. Box 8020321589JeddahSaudi Arabia
| | - Suliman N. Basahel
- Department of ChemistryKing Abdulaziz UniversityP.O. Box 8020321589JeddahSaudi Arabia
| | - Marc Baldus
- NMR SpectroscopyBijvoet Center for Biomolecular ResearchUtrecht UniversityPadualaan 83584 CHUtrechtThe Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis group Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
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61
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Delley MF, Silaghi MC, Nuñez-Zarur F, Kovtunov KV, Salnikov OG, Estes DP, Koptyug IV, Comas-Vives A, Copéret C. X–H Bond Activation on Cr(III),O Sites (X = R, H): Key Steps in Dehydrogenation and Hydrogenation Processes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00744] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murielle F. Delley
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
| | - Marius-C. Silaghi
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
| | - Francisco Nuñez-Zarur
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
- Instituto
de Química, Universidad de Antioquia, Calle 70 No. 52-21, Medellín, Colombia
| | - Kirill V. Kovtunov
- International Tomography Center, 3A
Institutskaya St., 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
St. 2, 630090 Novosibirsk, Russia
| | - Oleg G. Salnikov
- International Tomography Center, 3A
Institutskaya St., 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
St. 2, 630090 Novosibirsk, Russia
| | - Deven P. Estes
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
| | - Igor V. Koptyug
- International Tomography Center, 3A
Institutskaya St., 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
St. 2, 630090 Novosibirsk, Russia
| | - Aleix Comas-Vives
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
| | - Christophe Copéret
- ETH Zürich, Department of Chemistry and
Applied Biosciences, Vladimir-Prelog-Weg
1-5, CH-8093 Zürich, Switzerland
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62
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Initial Carbon-Carbon Bond Formation during the Early Stages of the Methanol-to-Olefin Process Proven by Zeolite-Trapped Acetate and Methyl Acetate. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608643] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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63
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Yarulina I, Bailleul S, Pustovarenko A, Martinez JR, Wispelaere KD, Hajek J, Weckhuysen BM, Houben K, Baldus M, Van Speybroeck V, Kapteijn F, Gascon J. Suppression of the Aromatic Cycle in Methanol-to-Olefins Reaction over ZSM-5 by Post-Synthetic Modification Using Calcium. ChemCatChem 2016. [DOI: 10.1002/cctc.201600650] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Irina Yarulina
- Catalysis Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences; Delft University of Technology; Julianalaan 136 2628 BL Delft The Netherlands
| | - Simon Bailleul
- Center for Molecular Modeling; Ghent University; Technologiepark 903 9052 Zwijnaarde Belgium
| | - Alexey Pustovarenko
- Catalysis Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences; Delft University of Technology; Julianalaan 136 2628 BL Delft The Netherlands
| | - Javier Ruiz Martinez
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Kristof De Wispelaere
- Center for Molecular Modeling; Ghent University; Technologiepark 903 9052 Zwijnaarde Belgium
| | - Julianna Hajek
- Center for Molecular Modeling; Ghent University; Technologiepark 903 9052 Zwijnaarde Belgium
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Klaartje Houben
- NMR Research Group, Debye Institute for Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Marc Baldus
- NMR Research Group, Debye Institute for Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | | | - Freek Kapteijn
- Catalysis Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences; Delft University of Technology; Julianalaan 136 2628 BL Delft The Netherlands
| | - Jorge Gascon
- Catalysis Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences; Delft University of Technology; Julianalaan 136 2628 BL Delft The Netherlands
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64
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Silaghi MC, Comas-Vives A, Copéret C. CO2 Activation on Ni/γ–Al2O3 Catalysts by First-Principles Calculations: From Ideal Surfaces to Supported Nanoparticles. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00822] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marius-Christian Silaghi
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093 Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093 Zürich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093 Zürich, Switzerland
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65
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Liu Y, Müller S, Berger D, Jelic J, Reuter K, Tonigold M, Sanchez-Sanchez M, Lercher JA. Formation Mechanism of the First Carbon-Carbon Bond and the First Olefin in the Methanol Conversion into Hydrocarbons. Angew Chem Int Ed Engl 2016; 55:5723-6. [PMID: 27037603 DOI: 10.1002/anie.201511678] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/25/2016] [Indexed: 11/11/2022]
Abstract
The elementary reactions leading to the formation of the first carbon-carbon bond during early stages of the zeolite-catalyzed methanol conversion into hydrocarbons were identified by combining kinetics, spectroscopy, and DFT calculations. The first intermediates containing a C-C bond are acetic acid and methyl acetate, which are formed through carbonylation of methanol or dimethyl ether even in presence of water. A series of acid-catalyzed reactions including acetylation, decarboxylation, aldol condensation, and cracking convert those intermediates into a mixture of surface bounded hydrocarbons, the hydrocarbon pool, as well as into the first olefin leaving the catalyst. This carbonylation based mechanism has an energy barrier of 80 kJ mol(-1) for the formation of the first C-C bond, in line with a broad range of experiments, and significantly lower than the barriers associated with earlier proposed mechanisms.
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Affiliation(s)
- Yue Liu
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Sebastian Müller
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Daniel Berger
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Jelena Jelic
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Karsten Reuter
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Markus Tonigold
- Clariant Produkte Deutschland GmbH, Waldheimer Strasse 13, 83052, Bruckmühl, Germany
| | - Maricruz Sanchez-Sanchez
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany.
| | - Johannes A Lercher
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany.
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66
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Liu Y, Müller S, Berger D, Jelic J, Reuter K, Tonigold M, Sanchez-Sanchez M, Lercher JA. Formation Mechanism of the First Carbon-Carbon Bond and the First Olefin in the Methanol Conversion into Hydrocarbons. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511678] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yue Liu
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Sebastian Müller
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Daniel Berger
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Jelena Jelic
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Karsten Reuter
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Markus Tonigold
- Clariant Produkte Deutschland GmbH; Waldheimer Strasse 13 83052 Bruckmühl Germany
| | - Maricruz Sanchez-Sanchez
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Johannes A. Lercher
- Department of Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
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67
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Lightcap J, Hester TH, Kamena K, Albury RM, Pruitt CJM, Goebbert DJ. Gas-Phase Fragmentation of Aluminum Oxide Nitrate Anions Driven by Reactive Oxygen Radical Ligands. J Phys Chem A 2016; 120:1501-7. [PMID: 26919711 DOI: 10.1021/acs.jpca.5b12417] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gas-phase metal nitrate anions are known to yield a variety of interesting metal oxides upon fragmentation. The aluminum nitrate anion complexes, Al(NO3)4(-) and AlO(NO3)3(-) were generated by electrospray ionization and studied with collision-induced dissociation and energy-resolved mass spectrometry. Four different decomposition processes were observed, the loss of NO3(-), NO3(•), NO2(•), and O2. The oxygen radical ligand in AlO(NO3)3(-) is highly reactive and drives the formation of AlO(NO3)2(-) upon loss of NO3(•), AlO2(NO3)2(-) upon NO2(•) loss, or Al(NO2)(NO3)2(-) upon abstraction of an oxygen atom from a neighboring nitrate ligand followed by loss of O2. The AlO2(NO3)2(-) fragment also undergoes elimination of O2. The mechanism for O2 elimination requires oxygen atom abstraction from a nitrate ligand in both AlO(NO3)3(-) and AlO2(NO3)2(-), revealing the hidden complexity in the fragmentation of these clusters.
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Affiliation(s)
- Johnny Lightcap
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
| | - Thomas H Hester
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
| | - Kurt Kamena
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
| | - Rachael M Albury
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
| | - Carrie Jo M Pruitt
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
| | - Daniel J Goebbert
- Department of Chemistry, The University of Alabama , Tuscaloosa, Alabama 35487, United States
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68
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Copéret C, Comas-Vives A, Conley MP, Estes DP, Fedorov A, Mougel V, Nagae H, Núñez-Zarur F, Zhizhko PA. Surface Organometallic and Coordination Chemistry toward Single-Site Heterogeneous Catalysts: Strategies, Methods, Structures, and Activities. Chem Rev 2016; 116:323-421. [PMID: 26741024 DOI: 10.1021/acs.chemrev.5b00373] [Citation(s) in RCA: 497] [Impact Index Per Article: 62.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Matthew P Conley
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Deven P Estes
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Alexey Fedorov
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Victor Mougel
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Haruki Nagae
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland.,Department of Chemistry, Graduate School of Engineering Science, Osaka University, CREST , Toyonaka, Osaka 560-8531, Japan
| | - Francisco Núñez-Zarur
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Pavel A Zhizhko
- Department of Chemistry and Applied Biosciences, ETH Zürich , Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland.,A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov str. 28, 119991 Moscow, Russia
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69
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Peng C, Wang H, Hu P. Theoretical insights into how the first C–C bond forms in the methanol-to-olefin process catalysed by HSAPO-34. Phys Chem Chem Phys 2016; 18:14495-502. [DOI: 10.1039/c5cp08029k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mechanism is proposed for the role of the carbenium ion in the first C–C coupling in the methanol-to-olefin process catalysed by HSAPO-34.
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Affiliation(s)
- Chao Peng
- Key Laboratory for Advanced Materials
- Centre for Computational Chemistry and Research Institute of Industrial Catalysis
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Haifeng Wang
- Key Laboratory for Advanced Materials
- Centre for Computational Chemistry and Research Institute of Industrial Catalysis
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - P. Hu
- Key Laboratory for Advanced Materials
- Centre for Computational Chemistry and Research Institute of Industrial Catalysis
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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70
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Barbera K, Lanzafame P, Perathoner S, Centi G, Migliori M, Aloise A, Giordano G. HMF etherification using NH4-exchanged zeolites. NEW J CHEM 2016. [DOI: 10.1039/c5nj03461b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reversible dissociation of NH4+ ions in the intra-cages of zeolites is correlated with their catalytic reactivity for HMF etherification.
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Affiliation(s)
- Katia Barbera
- University of Messina
- Section Industrial Chemistry
- ERIC aisbl and CASPE-INSTM
- 98166 Messina
- Italy
| | - Paola Lanzafame
- University of Messina
- Section Industrial Chemistry
- ERIC aisbl and CASPE-INSTM
- 98166 Messina
- Italy
| | - Siglinda Perathoner
- University of Messina
- Section Industrial Chemistry
- ERIC aisbl and CASPE-INSTM
- 98166 Messina
- Italy
| | - Gabriele Centi
- University of Messina
- Section Industrial Chemistry
- ERIC aisbl and CASPE-INSTM
- 98166 Messina
- Italy
| | - Massimo Migliori
- Department of Environmental and Chemical Engineering
- University of Calabria
- 87036 Rende
- Italy
| | - Alfredo Aloise
- Department of Environmental and Chemical Engineering
- University of Calabria
- 87036 Rende
- Italy
| | - Girolamo Giordano
- Department of Environmental and Chemical Engineering
- University of Calabria
- 87036 Rende
- Italy
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71
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Lercher JA. New Lewis Acid Catalyzed Pathway to Carbon-Carbon Bonds from Methanol. ACS CENTRAL SCIENCE 2015; 1:350-351. [PMID: 27162993 PMCID: PMC4827541 DOI: 10.1021/acscentsci.5b00311] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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