1
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Yang Y, Kanchanakungwankul S, Bhaumik S, Ma Q, Ahn S, Truhlar DG, Hupp JT. Bioinspired Cu(II) Defect Sites in ZIF-8 for Selective Methane Oxidation. J Am Chem Soc 2023; 145:22019-22030. [PMID: 37782301 DOI: 10.1021/jacs.3c06981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Activating the C-H bonds of alkanes without further oxidation to more thermodynamically stable products, CO and CO2, is a long-sought goal of catalytic chemistry. Inspired by the monocopper active site of methane monooxygenase, we synthesized a Cu-doped ZIF-8 metal-organic framework with 25% Cu and 75% Zn in the nodes and activated it by heating to 200 °C and dosing in a stepwise fashion with O2, methane, and steam. We found that it does oxidize methane to methanol and formaldehyde. The catalysis persists through at least five cycles, and beyond the third cycle, the selectivity improves to the extent that no CO2 can be detected. Experimental characterization and analysis were carried out by PXRD, DRUV-vis, SEM, and XAS (XANES and EXAFS). The reaction is postulated to proceed at open-coordination copper sites generated by defects, and the mechanism of methanol production was explicated by density functional calculations with the revMO6-L exchange-correlation functional. The calculations reveal a catalytic cycle of oxygen-activated CuI involving the conversion of two molecules of CH4 to two molecules of CH3OH by a sequence of hydrogen atom transfer reactions and rebound steps. For most steps in the cycle, the reaction is more favored by singlet species than by triplets.
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Affiliation(s)
- Ying Yang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Siriluk Kanchanakungwankul
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Suman Bhaumik
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Qing Ma
- DND-CAT, Northwestern Synchrotron Research Center at the Advanced Photon Source, Argonne, Illinois 60439, United States
| | - Sol Ahn
- School of Chemical Engineering and Materials Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Donald G Truhlar
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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2
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Zhou XK, Li Y, Luo PP, Lu TB. Synergy of Surface Phosphates and Oxygen Vacancies Enables Efficient Photocatalytic Methane Conversion at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37467491 DOI: 10.1021/acsami.3c06376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Room-temperature photocatalytic conversion of CH4 into liquid oxygenates with O2/H2O provides an appealing route for sustainable chemical industry, which, however, suffers from poor efficiency due to the undesired carrier kinetics and low yield of reactive oxygen species of the currently available photocatalysts. Here, we report an effective surface engineering strategy where concurrent constructions of oxygen vacancies and phosphate sites on TiO2 nanosheets address the above challenge. The surface oxygen vacancies and phosphates are respective acceptors of photogenerated electrons and holes for promoted separation and migration of charge carriers. Moreover, in addition to the facilitated activation of O2 to •OH by electrons at oxygen vacancies, the surface phosphates also facilely adsorb H2O via hydrogen bonds and thus effectively transfer holes to H2O for enhanced •OH production, thereby boosting CH4 conversion. As a result, compared with TiO2 sheets with only oxygen vacancies, a 2.8 times improvement in liquid oxygenate production with near-unity selectivity is achieved by virtue of the synergy of surface oxygen vacancies and phosphate sites, together with an unprecedent quantum efficiency of 19.8% under 365 nm irradiation.
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Affiliation(s)
- Xin-Ke Zhou
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yu Li
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Pei-Pei Luo
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Tong-Bu Lu
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
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3
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Tang X, Ye J, Guo L, Pu T, Cheng L, Cao XM, Guo Y, Wang L, Guo Y, Zhan W, Dai S. Atomic Insights into the Cu Species Supported on Zeolite for Direct Oxidation of Methane to Methanol via Low-Damage HAADF-STEM. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2208504. [PMID: 37014632 DOI: 10.1002/adma.202208504] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 02/04/2023] [Indexed: 06/19/2023]
Abstract
Precise determination of the structure-property relationship of zeolite-based metal catalysts is critical for the development toward practical applications. However, the scarcity of real-space imaging of zeolite-based low-atomic-number (LAN) metal materials due to the electron-beam sensitivity of zeolites has led to continuous debates regarding the exact LAN metal configurations. Here, a low-damage high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) imaging technique is employed for direct visualization and determination of LAN metal (Cu) species in ZSM-5 zeolite frameworks. The structures of the Cu species are revealed based on the microscopy evidence and also proved by the complementary spectroscopy results. The correlation between the characteristic Cu size in Cu/ZSM-5 catalysts and their direct oxidation of methane to methanol reaction properties is unveiled. As a result, the mono-Cu species stably anchored by Al pairs inside the zeolite channels are identified as the key structure for higher C1 oxygenates yield and methanol selectivity for direct oxidation of methane. Meanwhile, the local topological flexibility of the rigid zeolite frameworks induced by the Cu agglomeration in the channels is also revealed. This work exemplifies the combination of microscopy imaging and spectroscopy characterization serves as a complete arsenal for revealing structure-property relationships of the supported metal-zeolite catalysts.
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Affiliation(s)
- Xuan Tang
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Jiajie Ye
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Lisheng Guo
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Tiancheng Pu
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania, 18015, United States
| | - Lu Cheng
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Xiao-Ming Cao
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yanglong Guo
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Li Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yun Guo
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
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4
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Mlekodaj K, Lemishka M, Kornas A, Wierzbicki DK, Olszowka JE, Jirglová H, Dedecek J, Tabor E. Evolution of Active Oxygen Species Originating from O 2 Cleavage over Fe-FER for Application in Methane Oxidation. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Kinga Mlekodaj
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Mariia Lemishka
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
- Faculty of Chemical Technology, University of Pardubice, Studentská 95, 532 10 Pardubice, Czech Republic
| | - Agnieszka Kornas
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Dominik K. Wierzbicki
- Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen, PSI, Switzerland
- AGH University of Science and Technology, Faculty of Energy and Fuels, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
| | - Joanna E. Olszowka
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Hana Jirglová
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Jiri Dedecek
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Edyta Tabor
- J. Heyrovský Institute of Physical Chemistry of the CAS, v. v. i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
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5
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Britschgi J, Kersten W, Waldvogel SR, Schüth F. Electrochemically Initiated Synthesis of Methanesulfonic Acid. Angew Chem Int Ed Engl 2022; 61:e202209591. [PMID: 35972467 DOI: 10.1002/anie.202209591] [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: 06/30/2022] [Indexed: 01/07/2023]
Abstract
The direct sulfonation of methane to methanesulfonic acid was achieved in an electrochemical reactor without adding peroxide initiators. The synthesis proceeds only from oleum and methane. This is possible due to in situ formation of an initiating species from the electrolyte at a boron-doped diamond anode. Elevated pressure, moderate temperature and suitable current density are beneficial to reach high concentration at outstanding selectivity. The highest concentration of 3.7 M (approximately 62 % yield) at 97 % selectivity was reached with a stepped electric current program at 6.25-12.5 mA cm-2 , 70 °C and 90 bar methane pressure in 22 hours. We present a novel, electrochemical method to produce methanesulfonic acid, propose a reaction mechanism and show general dependencies between parameters and yields for methanesulfonic acid.
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Affiliation(s)
- Joel Britschgi
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim, Germany
| | - Wolfgang Kersten
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim, Germany
| | - Siegfried R Waldvogel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Ferdi Schüth
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim, Germany
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6
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Britschgi J, Kersten W, Waldvogel SR, Schüth F. Electrochemically Initiated Synthesis of Methanesulfonic Acid. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Joel Britschgi
- Max-Planck-Institut fur Kohlenforschung Heterogeneous Catalysis GERMANY
| | | | | | - Ferdi Schüth
- Max-Planck-Institut fur Kohlenforschung Heterogeneous Catalysis Kaiser-Wilhelm-Platz 1 45470 Mülheim GERMANY
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7
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Luo L, Fu L, Liu H, Xu Y, Xing J, Chang CR, Yang DY, Tang J. Synergy of Pd atoms and oxygen vacancies on In 2O 3 for methane conversion under visible light. Nat Commun 2022; 13:2930. [PMID: 35614052 PMCID: PMC9132922 DOI: 10.1038/s41467-022-30434-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 04/25/2022] [Indexed: 11/25/2022] Open
Abstract
Methane (CH4) oxidation to high value chemicals under mild conditions through photocatalysis is a sustainable and appealing pathway, nevertheless confronting the critical issues regarding both conversion and selectivity. Herein, under visible irradiation (420 nm), the synergy of palladium (Pd) atom cocatalyst and oxygen vacancies (OVs) on In2O3 nanorods enables superior photocatalytic CH4 activation by O2. The optimized catalyst reaches ca. 100 μmol h-1 of C1 oxygenates, with a selectivity of primary products (CH3OH and CH3OOH) up to 82.5%. Mechanism investigation elucidates that such superior photocatalysis is induced by the dedicated function of Pd single atoms and oxygen vacancies on boosting hole and electron transfer, respectively. O2 is proven to be the only oxygen source for CH3OH production, while H2O acts as the promoter for efficient CH4 activation through ·OH production and facilitates product desorption as indicated by DFT modeling. This work thus provides new understandings on simultaneous regulation of both activity and selectivity by the synergy of single atom cocatalysts and oxygen vacancies.
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Affiliation(s)
- Lei Luo
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The Energy and Catalysis Hub, College of Chemistry and Materials Science, Northwest University, Xi'an, PR China
| | - Lei Fu
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The Energy and Catalysis Hub, College of Chemistry and Materials Science, Northwest University, Xi'an, PR China
| | - Huifen Liu
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The Energy and Catalysis Hub, College of Chemistry and Materials Science, Northwest University, Xi'an, PR China
| | - Youxun Xu
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Jialiang Xing
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The Energy and Catalysis Hub, College of Chemistry and Materials Science, Northwest University, Xi'an, PR China
| | - Chun-Ran Chang
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, PR China
| | - Dong-Yuan Yang
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, PR China.
- Shaanxi Yanchang Petroleum (Group) Corp. Ltd., Xi'an, 710069, PR China.
| | - Junwang Tang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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8
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Methane oxidation by green oxidant to methanol over zeolite-based catalysts. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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10
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Britschgi J, Bilke M, Schuhmann W, Schüth F. Indirect Electrooxidation of Methane to Methyl Bisulfate on a Boron‐Doped Diamond Electrode. ChemElectroChem 2022. [DOI: 10.1002/celc.202101253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Joel Britschgi
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
| | - Marius Bilke
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
| | - Ferdi Schüth
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
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11
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Yousefzadeh H, Bozbag SE, Erkey C. Supercritical ion exchange: A new method to synthesize copper exchanged zeolites. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Göltl F, Bhandari S, Lebrón-Rodríguez EA, Gold JI, Zones SI, Hermans I, Dumesic JA, Mavrikakis M. Identifying hydroxylated copper dimers in SSZ-13 via UV-vis-NIR spectroscopy. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00353h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Potential active sites for the conversion of methane to methanol in Cu-exchanged SSZ-13 are identified using a combination of experimentally measured UV-vis-NIR spectroscopy and theoretical modeling.
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Affiliation(s)
- Florian Göltl
- Department of Biosystems Engineering, The University of Arizona, 1177, E 4th St., 85719, Tucson, AZ, USA
| | - Saurabh Bhandari
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
| | - Edgard A. Lebrón-Rodríguez
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
| | - Jake I. Gold
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
| | | | - Ive Hermans
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
- Department of Chemistry, The University of Wisconsin – Madison, 1101 University Avenue, 53706 Madison, WI, USA
| | - James A. Dumesic
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, The University of Wisconsin – Madison, 1415 Engineering Drive, 53706 Madison, WI, USA
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13
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Mizuno SC, Dulnee S, Pereira TC, Passini RJ, Urquieta-Gonzalez EA, Gallo JMR, Santos JB, Bueno JM. Stepwise methane to methanol conversion: Effect of copper loading on the formation of active species in copper-exchanged mordenite. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.11.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Lyu Y, Xu R, Williams O, Wang Z, Sievers C. Reaction paths of methane activation and oxidation of surface intermediates over NiO on Ceria-Zirconia catalysts studied by In-situ FTIR spectroscopy. J Catal 2021. [DOI: 10.1016/j.jcat.2021.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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16
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Sushkevich VL, Artsiusheuski M, Klose D, Jeschke G, Bokhoven JA. Identification of Kinetic and Spectroscopic Signatures of Copper Sites for Direct Oxidation of Methane to Methanol. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Mikalai Artsiusheuski
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
- Institute for Chemistry and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Daniel Klose
- Laboratory of Physical Chemistry ETH Zurich Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry ETH Zurich Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Jeroen A. Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
- Institute for Chemistry and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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17
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Meyet J, Ashuiev A, Noh G, Newton MA, Klose D, Searles K, Bavel AP, Horton AD, Jeschke G, Bokhoven JA, Copéret C. Methane‐to‐Methanol on Mononuclear Copper(II) Sites Supported on Al
2
O
3
: Structure of Active Sites from Electron Paramagnetic Resonance**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jordan Meyet
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Anton Ashuiev
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Gina Noh
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Mark A. Newton
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Daniel Klose
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Keith Searles
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Alexander P. Bavel
- Shell Global Solutions International B.V. Grasweg 31 1031 HW Amsterdam The Netherlands
| | - Andrew D. Horton
- Shell Global Solutions International B.V. Grasweg 31 1031 HW Amsterdam The Netherlands
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Jeroen A. Bokhoven
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institute 5232 Villigen Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
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18
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Sushkevich VL, Artsiusheuski M, Klose D, Jeschke G, van Bokhoven JA. Identification of Kinetic and Spectroscopic Signatures of Copper Sites for Direct Oxidation of Methane to Methanol. Angew Chem Int Ed Engl 2021; 60:15944-15953. [PMID: 33905160 DOI: 10.1002/anie.202101628] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/16/2021] [Indexed: 11/09/2022]
Abstract
Copper-exchanged zeolites of different topologies possess high activity in the direct conversion of methane to methanol via the chemical looping approach. Despite a large number of studies, identification of the active sites, and especially their intrinsic kinetic characteristics remain incomplete and ambiguous. In the present work, we collate the kinetic behavior of different copper species with their spectroscopic identities and track the evolution of various copper motifs during the reaction. Using time-resolved UV/Vis and in situ EPR, XAS, and FTIR spectroscopies, two types of copper monomers were identified, one of which is active in the reaction with methane, in addition to a copper dimeric species with the mono-μ-oxo structure. Kinetic measurements showed that the reaction rate of the copper monomers is somewhat slower than that of the dicopper mono-μ-oxo species, while the activation energy is two times lower.
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Affiliation(s)
- Vitaly L Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Mikalai Artsiusheuski
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland.,Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Daniel Klose
- Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Jeroen A van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland.,Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
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19
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Meyet J, Ashuiev A, Noh G, Newton MA, Klose D, Searles K, van Bavel AP, Horton AD, Jeschke G, van Bokhoven JA, Copéret C. Methane-to-Methanol on Mononuclear Copper(II) Sites Supported on Al 2 O 3 : Structure of Active Sites from Electron Paramagnetic Resonance*. Angew Chem Int Ed Engl 2021; 60:16200-16207. [PMID: 34132453 PMCID: PMC8361669 DOI: 10.1002/anie.202105307] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Indexed: 01/28/2023]
Abstract
The selective conversion of methane to methanol remains one of the holy grails of chemistry, where Cu‐exchanged zeolites have been shown promote this reaction under stepwise conditions. Over the years, several active sites have been proposed, ranging from mono‐, di‐ to trimeric CuII. Herein, we report the formation of well‐dispersed monomeric CuII species supported on alumina using surface organometallic chemistry and their reactivity towards the selective and stepwise conversion of methane to methanol. Extensive studies using various transition alumina supports combined with spectroscopic characterization, in particular electron paramagnetic resonance (EPR), show that the active sites are associated with specific facets, which are typically found in γ‐ and η‐alumina phase, and that their EPR signature can be attributed to species having a tri‐coordinated [(Al2O)CuIIO(OH)]− T‐shape geometry. Overall, the selective conversion of methane to methanol, a two‐electron process, involves two monomeric CuII sites that play in concert.
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Affiliation(s)
- Jordan Meyet
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Anton Ashuiev
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Gina Noh
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Mark A Newton
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Daniel Klose
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Keith Searles
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Alexander P van Bavel
- Shell Global Solutions International B.V., Grasweg 31, 1031, HW, Amsterdam, The Netherlands
| | - Andrew D Horton
- Shell Global Solutions International B.V., Grasweg 31, 1031, HW, Amsterdam, The Netherlands
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Jeroen A van Bokhoven
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland.,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
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20
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Docherty SR, Rochlitz L, Payard PA, Copéret C. Heterogeneous alkane dehydrogenation catalysts investigated via a surface organometallic chemistry approach. Chem Soc Rev 2021; 50:5806-5822. [PMID: 33972978 PMCID: PMC8111541 DOI: 10.1039/d0cs01424a] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The selective conversion of light alkanes (C2–C6 saturated hydrocarbons) to the corresponding alkene is an appealing strategy for the petrochemical industry in view of the availability of these feedstocks, in particular with the emergence of Shale gas. Here, we present a review of model dehydrogenation catalysts of light alkanes prepared via surface organometallic chemistry (SOMC). A specific focus of this review is the use of molecular strategies for the deconvolution of complex heterogeneous materials that are proficient in enabling dehydrogenation reactions. The challenges associated with the proposed reactions are highlighted, as well as overriding themes that can be ascertained from the systematic study of these challenging reactions using model SOMC catalysts. Alkane dehydrogenation over heterogeneous catalysts has attracted renewed attention in recent years. Here, well-defined catalysts based on isolated metal sites and supported Pt-alloys prepared via SOMC are discussed and compared to classical systems.![]()
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Affiliation(s)
- Scott R Docherty
- Department of Chemistry and Applied Biosciences - ETH Zürich, Vladimir Prelog 2, CH8093 Zürich, Switzerland.
| | - Lukas Rochlitz
- Department of Chemistry and Applied Biosciences - ETH Zürich, Vladimir Prelog 2, CH8093 Zürich, Switzerland.
| | - Pierre-Adrien Payard
- Department of Chemistry and Applied Biosciences - ETH Zürich, Vladimir Prelog 2, CH8093 Zürich, Switzerland.
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences - ETH Zürich, Vladimir Prelog 2, CH8093 Zürich, Switzerland.
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21
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Lais T, Lukashuk L, van de Water L, Hyde TI, Aramini M, Sankar G. Elucidation of copper environment in a Cu-Cr-Fe oxide catalyst through in situ high-resolution XANES investigation. Phys Chem Chem Phys 2021; 23:5888-5896. [PMID: 33660717 DOI: 10.1039/d0cp06468h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper containing materials are widely used in a range of catalytic applications. Here, we report the use of Cu K-edge high resolution XANES to determine the local site symmetry of copper ions during the thermal treatment of a Cu-Cr-Fe oxide catalyst. We exploited the Cu K-edge XANES spectral features, in particular the correlation between area under the pre-edge peak and its position to determine the local environment of Cu2+ ions. The information gained from this investigation rules out the presence of Cu2+ ions in a tetrahedral or square planar geometry, a mixture of these sites, or in a reduced oxidation state. Evidence is presented that the Cu2+ ions in the Cu-Cr-Fe oxide system are present in a distorted octahedral environment.
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Affiliation(s)
- Tahmin Lais
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
| | - Liliana Lukashuk
- Johnson Matthey, PO Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, UK
| | - Leon van de Water
- Johnson Matthey, PO Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, UK
| | - Timothy I Hyde
- Johnson Matthey, Blounts Court, Sonning Common, Reading, RG4 9NH, UK
| | - Matteo Aramini
- Diamond Light Source, Harwell Science & Innovation Campus, Oxfordshire OX11 0DE, UK
| | - Gopinathan Sankar
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
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22
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Knorpp AJ, Pinar AB, Baerlocher C, McCusker LB, Casati N, Newton MA, Checchia S, Meyet J, Palagin D, Bokhoven JA. Paired Copper Monomers in Zeolite Omega: The Active Site for Methane‐to‐Methanol Conversion. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Amy J. Knorpp
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Christian Baerlocher
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Lynne B. McCusker
- Department of Materials ETH Zürich Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Nicola Casati
- Laboratory for Synchrotron Radiation—Condensed Matter Paul Scherrer Institut 5232 Villigen Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Stefano Checchia
- ID 15A European Synchrotron Radiation Facility 71 Avenue des Martyrs 38000 Grenoble France
| | - Jordan Meyet
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Jeroen A. Bokhoven
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
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23
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Knorpp AJ, Pinar AB, Baerlocher C, McCusker LB, Casati N, Newton MA, Checchia S, Meyet J, Palagin D, Bokhoven JA. Paired Copper Monomers in Zeolite Omega: The Active Site for Methane‐to‐Methanol Conversion. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202014030] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Amy J. Knorpp
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Christian Baerlocher
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Lynne B. McCusker
- Department of Materials ETH Zürich Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Nicola Casati
- Laboratory for Synchrotron Radiation—Condensed Matter Paul Scherrer Institut 5232 Villigen Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Stefano Checchia
- ID 15A European Synchrotron Radiation Facility 71 Avenue des Martyrs 38000 Grenoble France
| | - Jordan Meyet
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Jeroen A. Bokhoven
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
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24
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Yu T, Li Z, Jones W, Liu Y, He Q, Song W, Du P, Yang B, An H, Farmer DM, Qiu C, Wang A, Weckhuysen BM, Beale AM, Luo W. Identifying key mononuclear Fe species for low-temperature methane oxidation. Chem Sci 2021; 12:3152-3160. [PMID: 34164082 PMCID: PMC8179404 DOI: 10.1039/d0sc06067d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The direct functionalization of methane into platform chemicals is arguably one of the holy grails in chemistry. The actual active sites for methane activation are intensively debated. By correlating a wide variety of characterization results with catalytic performance data we have been able to identify mononuclear Fe species as the active site in the Fe/ZSM-5 zeolites for the mild oxidation of methane with H2O2 at 50 °C. The 0.1% Fe/ZSM-5 catalyst with dominant mononuclear Fe species possess an excellent turnover rate (TOR) of 66 molMeOH molFe−1 h−1, approximately 4 times higher compared to the state-of-the-art dimer-containing Fe/ZSM-5 catalysts. Based on a series of advanced in situ spectroscopic studies and 1H- and 13C- nuclear magnetic resonance (NMR), we found that methane activation initially proceeds on the Fe site of mononuclear Fe species. With the aid of adjacent Brønsted acid sites (BAS), methane can be first oxidized to CH3OOH and CH3OH, and then subsequently converted into HOCH2OOH and consecutively into HCOOH. These findings will facilitate the search towards new metal-zeolite combinations for the activation of C–H bonds in various hydrocarbons, for light alkanes and beyond. The monomeric Fe species in Fe/ZSM-5 have been identified as the intrinsic active sites for the low-temperature methane oxidation.![]()
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Affiliation(s)
- Tao Yu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhi Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing 102249 China
| | - Wilm Jones
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH), Rutherford Appleton Laboratory Harwell, Didcot Oxon OX11 0FA UK
| | - Yuanshuai Liu
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 Utrecht 3584 CG The Netherlands
| | - Qian He
- Department of Materials Science and Engineering, National University of Singapore Engineering Drive 1 Singapore 117575 Singapore
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing 102249 China
| | - Pengfei Du
- University of Chinese Academy of Sciences Beijing 100049 China.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Bing Yang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Hongyu An
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 Utrecht 3584 CG The Netherlands
| | - Daniela M Farmer
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH), Rutherford Appleton Laboratory Harwell, Didcot Oxon OX11 0FA UK
| | - Chengwu Qiu
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH), Rutherford Appleton Laboratory Harwell, Didcot Oxon OX11 0FA UK
| | - Aiqin Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China .,State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 Utrecht 3584 CG The Netherlands
| | - Andrew M Beale
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH), Rutherford Appleton Laboratory Harwell, Didcot Oxon OX11 0FA UK
| | - Wenhao Luo
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
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25
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Meyet J, van Bavel AP, Horton AD, van Bokhoven JA, Copéret C. Selective oxidation of methane to methanol on dispersed copper on alumina from readily available copper( ii) formate. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00789k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct conversion of methane to methanol attracts increasing interest due to the availability of low-cost methane from natural gas.
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Affiliation(s)
- Jordan Meyet
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- 8093 Zürich
- Switzerland
| | | | - Andrew D. Horton
- Shell Global Solutions International B.V
- 1031 HW Amsterdam
- The Netherlands
| | - Jeroen A. van Bokhoven
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- 8093 Zürich
- Switzerland
- Laboratory for Catalysis and Sustainable Chemistry
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- 8093 Zürich
- Switzerland
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26
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Lang R, Du X, Huang Y, Jiang X, Zhang Q, Guo Y, Liu K, Qiao B, Wang A, Zhang T. Single-Atom Catalysts Based on the Metal–Oxide Interaction. Chem Rev 2020; 120:11986-12043. [DOI: 10.1021/acs.chemrev.0c00797] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rui Lang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiaorui Du
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yike Huang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xunzhu Jiang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yalin Guo
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaipeng Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Aiqin Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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27
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Wu Z, Zhang X, Goodman ED, Huang W, Riscoe AR, Yacob S, Cargnello M. Dynamics of Copper-Containing Porous Organic Framework Catalysts Reveal Catalytic Behavior Controlled by the Polymer Structure. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01863] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhenwei Wu
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Xu Zhang
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
- School of Materials Science and Engineering, Tsinghua University, Beijing 10084, China
| | - Emmett D. Goodman
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Weixin Huang
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Andrew R. Riscoe
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Sara Yacob
- ExxonMobil Research and Engineering, Annandale, New Jersey 08801, United States
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
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28
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Šot P, Newton MA, Baabe D, Walter MD, van Bavel AP, Horton AD, Copéret C, van Bokhoven JA. Non-oxidative Methane Coupling over Silica versus Silica-Supported Iron(II) Single Sites. Chemistry 2020; 26:8012-8016. [PMID: 32154949 DOI: 10.1002/chem.202001139] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Indexed: 11/06/2022]
Abstract
Non-oxidative CH4 coupling is promoted by silica with incorporated iron sites, but the role of these sites and their speciation under reaction conditions are poorly understood. Here, silica-supported iron(II) single sites, prepared via surface organometallic chemistry and stable at 1020 °C in vacuum, are shown to rapidly initiate CH4 coupling at 1000 °C, leading to 15-22 % hydrocarbons selectivity at 3-4 % conversion. During this process, iron reduces and forms carburized iron(0) nanoparticles. This reactivity contrasts with what is observed for (iron-free) partially dehydroxylated silica, that readily converts methane, albeit with low hydrocarbon selectivity and after an induction period. This study supports that iron sites facilitate faster initiation of radical reactions and tame the surface reactivity.
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Affiliation(s)
- Petr Šot
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladmimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Mark A Newton
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladmimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Dirk Baabe
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Marc D Walter
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Alexander P van Bavel
- Shell Global Solutions International B.V., Grasweg 31, 1031 HW, Amsterdam, The Netherlands
| | - Andrew D Horton
- Shell Global Solutions International B.V., Grasweg 31, 1031 HW, Amsterdam, The Netherlands
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladmimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Jeroen A van Bokhoven
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladmimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland.,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
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29
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Sushkevich VL, Safonova OV, Palagin D, Newton MA, van Bokhoven JA. Structure of copper sites in zeolites examined by Fourier and wavelet transform analysis of EXAFS. Chem Sci 2020; 11:5299-5312. [PMID: 34122988 PMCID: PMC8159279 DOI: 10.1039/d0sc01472a] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Copper-exchanged zeolites are a class of redox-active materials that find application in the selective catalytic reduction of exhaust gases of diesel vehicles and, more recently, the selective oxidation of methane to methanol. However, the structure of the active copper-oxo species present in zeolites under oxidative environments is still a subject of debate. Herein, we make a comprehensive study of copper species in copper-exchanged zeolites with MOR, MFI, BEA, and FAU frameworks and for different Si/Al ratios and copper loadings using X-ray absorption spectroscopy. Only obtaining high quality EXAFS data, collected at large k-values and measured under cryogenic conditions, in combination with wavelet transform analysis enables the discrimination between the copper-oxo species having different structures. The zeolite topology strongly affects the copper speciation, ranging from monomeric copper species to copper-oxo clusters, hosted in zeolites of different topologies. In contrast, the variation of the Si/Al ratio or copper loading in mordenite does not lead to significant differences in XAS spectra, suggesting that a change, if any, in the structure of copper species in these materials is not distinguishable by EXAFS. The structure of copper-oxo species hosted in zeolites of various topology has been examined using wavelet and Fourier transform analysis of Cu K-edge EXAFS spectra.![]()
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Affiliation(s)
- Vitaly L Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut 5232 Villigen PSI Switzerland +41563103518
| | - Olga V Safonova
- Laboratory for Operando Spectroscopy, Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut 5232 Villigen PSI Switzerland +41563103518
| | - Mark A Newton
- Institute for Chemistry and Bioengineering, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Jeroen A van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut 5232 Villigen PSI Switzerland +41563103518.,Institute for Chemistry and Bioengineering, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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30
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Kvande K, Pappas DK, Borfecchia E, Lomachenko KA. Advanced X‐ray Absorption Spectroscopy Analysis to Determine Structure‐Activity Relationships for Cu‐Zeolites in the Direct Conversion of Methane to Methanol. ChemCatChem 2020. [DOI: 10.1002/cctc.201902371] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Karoline Kvande
- Centre for Materials Science and Nanotechnology Department of Chemistry University of Oslo Sem Sælands vei 26 0371 Oslo Norway
| | - Dimitrios K. Pappas
- Centre for Materials Science and Nanotechnology Department of Chemistry University of Oslo Sem Sælands vei 26 0371 Oslo Norway
| | - Elisa Borfecchia
- Department of Chemistry, NIS Center and INSTM Reference Center University of Turin Via P. Giuria 7 10125 Turin Italy
| | - Kirill A. Lomachenko
- European Synchrotron Radiation Facility 71 Avenue des Martyrs, CS 40220 Grenoble Cedex 9 38043 France
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31
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Identification of the active sites and mechanism for partial methane oxidation to methanol over copper-exchanged CHA zeolites. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9695-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Sushkevich VL, Verel R, Bokhoven JA. Pathways of Methane Transformation over Copper‐Exchanged Mordenite as Revealed by In Situ NMR and IR Spectroscopy. Angew Chem Int Ed Engl 2020; 59:910-918. [DOI: 10.1002/anie.201912668] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer Institut 5232 Villigen PSI Switzerland
| | - René Verel
- Institute for Chemistry and BioengineeringETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Jeroen A. Bokhoven
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer Institut 5232 Villigen PSI Switzerland
- Institute for Chemistry and BioengineeringETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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33
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Newton MA, Knorpp AJ, Sushkevich VL, Palagin D, van Bokhoven JA. Active sites and mechanisms in the direct conversion of methane to methanol using Cu in zeolitic hosts: a critical examination. Chem Soc Rev 2020; 49:1449-1486. [DOI: 10.1039/c7cs00709d] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this critical review we examine the current state of our knowledge in respect of the nature of the active sites in copper containing zeolites for the selective conversion of methane to methanol.
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Affiliation(s)
- Mark A. Newton
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
| | - Amy J. Knorpp
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
- Laboratory for Catalysis and Sustainable Chemistry
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34
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Yelin S, Limberg C. Molecular Structural Motifs and O2 Activation Inspired by Enzymes and Solid Catalysts. Catal Letters 2020. [DOI: 10.1007/s10562-019-02918-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Newton MA, Knorpp AJ, Meyet J, Stoian D, Nachtegaal M, Clark AH, Safonova OV, Emerich H, van Beek W, Sushkevich VL, van Bokhoven JA. Unwanted effects of X-rays in surface grafted copper(ii) organometallics and copper exchanged zeolites, how they manifest, and what can be done about them. Phys Chem Chem Phys 2020; 22:6826-6837. [DOI: 10.1039/d0cp00402b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Commonly applied powder densities at modern X-ray spectroscopy resources have the capacity to affect, in a deleterious manner, the results obtained from a measurement on copper(ii) containing materials.
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Affiliation(s)
- Mark A. Newton
- Department of Chemical and Bioengineering
- ETH Zurich
- Zurich
- Switzerland
| | - Amy J. Knorpp
- Department of Chemical and Bioengineering
- ETH Zurich
- Zurich
- Switzerland
| | - Jordan Meyet
- Department of Chemical and Bioengineering
- ETH Zurich
- Zurich
- Switzerland
| | | | | | | | | | | | | | | | - Jeroen A. van Bokhoven
- Department of Chemical and Bioengineering
- ETH Zurich
- Zurich
- Switzerland
- Paul Scherrer Institut
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36
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Sushkevich VL, van Bokhoven JA. Kinetic study and effect of water on methane oxidation to methanol over copper-exchanged mordenite. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01711a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kinetic experiments show that both methoxy species and carbon monoxide are primary products. Adsorption of one water molecule reversibly blocks at least two copper atoms in active species.
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Affiliation(s)
- Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institut
- 5232 Villigen PSI
- Switzerland
| | - Jeroen A. van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institut
- 5232 Villigen PSI
- Switzerland
- Institute for Chemistry and Bioengineering
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37
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Sushkevich VL, Verel R, Bokhoven JA. Pathways of Methane Transformation over Copper‐Exchanged Mordenite as Revealed by In Situ NMR and IR Spectroscopy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912668] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer Institut 5232 Villigen PSI Switzerland
| | - René Verel
- Institute for Chemistry and BioengineeringETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Jeroen A. Bokhoven
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer Institut 5232 Villigen PSI Switzerland
- Institute for Chemistry and BioengineeringETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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38
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Ghaffari B, Mendes‐Burak J, Chan KW, Copéret C. Silica‐Supported MnIISites as Efficient Catalysts for Carbonyl Hydroboration, Hydrosilylation, and Transesterification. Chemistry 2019; 25:13869-13873. [DOI: 10.1002/chem.201903638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Behnaz Ghaffari
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Jorge Mendes‐Burak
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Ka Wing Chan
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
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39
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Palagin D, Sushkevich VL, van Bokhoven JA. Water Molecules Facilitate Hydrogen Release in Anaerobic Oxidation of Methane to Methanol over Cu/Mordenite. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02702] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - Jeroen A. van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
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40
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Wu JF, Gao XD, Wu LM, Wang WD, Yu SM, Bai S. Mechanistic Insights on the Direct Conversion of Methane into Methanol over Cu/Na–ZSM-5 Zeolite: Evidence from EPR and Solid-State NMR. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02898] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jian-Feng Wu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xu-Dong Gao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People’s Republic of China
| | - Long-Min Wu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Wei David Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Si-Min Yu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Shi Bai
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
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41
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Moroz IB, Lund A, Kaushik M, Severy L, Gajan D, Fedorov A, Lesage A, Copéret C. Specific Localization of Aluminum Sites Favors Ethene-to-Propene Conversion on (Al)MCM-41-Supported Ni(II) Single Sites. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01903] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ilia B. Moroz
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - Alicia Lund
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Monu Kaushik
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Laurent Severy
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - David Gajan
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Alexey Fedorov
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Christophe Copéret
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
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42
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Copéret C. Single-Sites and Nanoparticles at Tailored Interfaces Prepared via Surface Organometallic Chemistry from Thermolytic Molecular Precursors. Acc Chem Res 2019; 52:1697-1708. [PMID: 31150207 DOI: 10.1021/acs.accounts.9b00138] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Heterogeneous catalysts are complex by nature, making particularly difficult to assess the structure of their active sites. Such complexity is inherited in part from their mode of preparation, which typically involves coprecipitation or impregnation of metal salts in aqueous solution, and the associated complex surface chemistries. In this context, surface organometallic chemistry (SOMC) has emerged as a powerful approach to generate well-defined surface species, where the metal sites are introduced by grafting tailored molecular precursors. When combined with thermolytic molecular precursors (TMPs) that can lose their organic moieties quite readily upon thermal treatment, SOMC provides access to supported isolated metal sites with defined oxidation state and nuclearity inherited from the precursor. The resulting surface species bear unusual coordination imposed by the surface that provides them high reactivity in comparison with their molecular precursor. In addition, these molecularly defined species bare strong resemblance with the active sites of supported metal oxides. However, they typically contain a higher proportion of active sites making structure-activity relationship possible. They thus constitute ideal models for this important class of industrial catalysts that are used in numerous applications such as olefin epoxidation (Shell process), olefin metathesis (triolefin process), ethylene polymerization (Phillips catalysts), or propane dehydrogenation (Catofin and related processes). This SOMC/TMP approach can thus provide detailed information about the structure of active sites in industrial catalysts, their mode of initiation and deactivation, as well as the role of the support and specific thermal treatment on the final activity of the catalysts. Nonetheless, these structurally characterized surface sites still exhibit heterogeneous environments borrowed from the support itself, that explain the intrinsic complexity of heterogeneous catalysis. Furthermore, SOMC/TMP can also be used to generate and investigate supported metal nanoparticles. Starting from the well-defined isolated sites, that also contain adjacent surface OH groups, one can graft a second metal and then generate after treatment under hydrogen small and narrowly dispersed alloys or nanoparticles with tailored interfaces that can show improved catalytic performances and are amiable to detailed structure-activity relationships. This approach is illustrated by two case studies: (1) formation of supported copper nanoparticles at tailored interfaces that contain isolated metal sites for the selective hydrogenation of carbon dioxide to methanol, allowing for a detailed understanding of the role of dopants and supports in heterogeneous catalysis, and (2) preparation of highly selective and productive propane dehydrogenation catalysts based on silica-supported Pt xGa y alloy. Overall, this Account shows how the combination of SOMC and TMP helps to generate catalysts, particularly suited for elucidating structural characterization of active sites at a molecular-level which in turn enables structure-activity relationship to be drawn. Such detailed information obtained on well-defined catalysts can then be used to understand complex effects observed in industrial catalysts (effects of supports, additives, dopants, etc.), and to extract information that can then be used to improve them in a more rational way.
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Affiliation(s)
- Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg. 1-5, CH-8093 Zürich, Switzerland
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43
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Artiglia L, Sushkevich VL, Palagin D, Knorpp AJ, Roy K, van Bokhoven JA. In Situ X-ray Photoelectron Spectroscopy Detects Multiple Active Sites Involved in the Selective Anaerobic Oxidation of Methane in Copper-Exchanged Zeolites. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01223] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Luca Artiglia
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
- Laboratory of Environmental Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Amy J. Knorpp
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
| | - Kanak Roy
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
| | - Jeroen A. van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
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44
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Knorpp AJ, Newton MA, Mizuno SCM, Zhu J, Mebrate H, Pinar AB, van Bokhoven JA. Comparative performance of Cu-zeolites in the isothermal conversion of methane to methanol. Chem Commun (Camb) 2019; 55:11794-11797. [DOI: 10.1039/c9cc05659a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A series of zeolites were screened for the direct conversion of methane to methanol under isothermal low-temperature stepwise conditions; of the screened zeolites, omega zeolite (MAZ) showed superior performance.
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Affiliation(s)
- Amy J. Knorpp
- Institute for Chemical and Bioengineering
- ETH Zurich
- Vladimir-Prelog-Weg 1
- 8093 Zurich
- Switzerland
| | - Mark A. Newton
- Institute for Chemical and Bioengineering
- ETH Zurich
- Vladimir-Prelog-Weg 1
- 8093 Zurich
- Switzerland
| | - Stefanie C. M. Mizuno
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Jie Zhu
- Institute for Chemical and Bioengineering
- ETH Zurich
- Vladimir-Prelog-Weg 1
- 8093 Zurich
- Switzerland
| | - Hiwote Mebrate
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering
- ETH Zurich
- Vladimir-Prelog-Weg 1
- 8093 Zurich
- Switzerland
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