1
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Performance-defining factors of (MnOx)-M2WO4/SiO2 (M=Na, K, Rb or Cs) catalysts in oxidative coupling of methane. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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2
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Si J, Zhao G, Lan T, Ni J, Sun W, Liu Y, Lu Y. Insight into the Role of Na 2WO 4 in a Low-Temperature Light-off Mn 7SiO 12–Na 2WO 4/Cristobalite Catalyst for Oxidative Coupling of Methane. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jiaqi Si
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Guofeng Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Tian Lan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Jiayong Ni
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Weidong Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Ye Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
| | - Yong Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, Shanghai200062, China
- Institute of Eco-Chongming, Shanghai202162, China
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3
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Vasyutin PR, Gordienko YA, Sinev MY, Ivakin YD, Lagunova EA. Peculiarities of the Formation of Compounds and Phases in the Al2O3–MO (M = Mg, Ca, Sr, Ba) Systems during Treatment in Water Fluids. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s199079312207017x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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TiOx-supported Na-Mn-W oxides for the oxidative coupling of methane. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Zanina A, Kondratenko VA, Lund H, Li J, Chen J, Li Y, Jiang G, Kondratenko EV. The Role of Adsorbed and Lattice Oxygen Species in Product Formation in the Oxidative Coupling of Methane over M 2WO 4/SiO 2 (M = Na, K, Rb, Cs). ACS Catal 2022. [DOI: 10.1021/acscatal.2c04916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Anna Zanina
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Vita A. Kondratenko
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Henrik Lund
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Jianshu Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing102249, People’s Republic of China
| | - Juan Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing102249, People’s Republic of China
| | - Yuming Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing102249, People’s Republic of China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing102249, People’s Republic of China
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6
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Wang Y, Sourav S, Malizia JP, Thompson B, Wang B, Kunz MR, Nikolla E, Fushimi R. Deciphering the Mechanistic Role of Individual Oxide Phases and Their Combinations in Supported Mn–Na 2WO 4 Catalysts for Oxidative Coupling of Methane. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yixiao Wang
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Sagar Sourav
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Jason P. Malizia
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Brooklyne Thompson
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
- Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Bingwen Wang
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - M. Ross Kunz
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Eranda Nikolla
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States
| | - Rebecca Fushimi
- Catalysis and Transient Kinetics Group, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
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7
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Zhao G, Ni J, Si J, Sun W, Lu Y. Low-Temperature Light-off MnOx-Na2WO4-Based Catalysts: A Step Forward to OCM Process Industrialization. Chemphyschem 2022; 23:e202200365. [PMID: 35838245 DOI: 10.1002/cphc.202200365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/05/2022] [Indexed: 11/05/2022]
Abstract
Oxidative coupling of methane (OCM) catalyzed by MnOx-Na2WO4-based catalysts has great industrial potential to convert CH4 directly to C2-3 products, but the high light-off temperature is a big challenge to OCM commercialization. The reaction mechanism studies disclosed that O2/CH4-activation relevant "Mn2+↔Mn3+" redox cycle is tightly linked with the catalyst light-off. One concept is thus put forward that the OCM light-off temperature could be lowered once a "Mn2+↔Mn3+" redox cycle was established to be triggered at low temperature over MnOx-Na2WO4-based catalysts. The relevant studies in recent years are reviewed, showing that the establishment of low-temperature light-off "Mn2+↔Mn3+" redox cycle over the MnOx-Na2WO4-based catalysts indeed works effectively toward a low-temperature light-off OCM process. Moreover, three perspectives for the OCM industrialization are discussed based on this concept, including monolithic catalyst, fluidized-bed method and chemical-looping process.
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Affiliation(s)
- Guofeng Zhao
- East China Normal University, School of Chemistry and Molecular Engineering, CHINA
| | - Jiayong Ni
- East China Normal University, School of Chemistry and Molecular Engineering, CHINA
| | - Jiaqi Si
- East China Normal University, School of Chemistry and Molecular Engineering, CHINA
| | - Weidong Sun
- East China Normal University, School of Chemistry and Molecular Engineering, CHINA
| | - Yong Lu
- East China Normal University, School of Chemistry and Molecular Engineering, 3663 North Zhongshan Road, 200062, Shanghai, CHINA
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8
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Phase Composition and Catalytic Properties of MnNaW/SiO2 Oxide System in Oxidative Conversion of Methane. THEOR EXP CHEM+ 2022. [DOI: 10.1007/s11237-022-09723-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Si J, Zhao G, Sun W, Liu J, Guan C, Yang Y, Shi XR, Lu Y. Oxidative Coupling of Methane: Examining the Inactivity of the MnO x -Na 2 WO 4 /SiO 2 Catalyst at Low Temperature. Angew Chem Int Ed Engl 2022; 61:e202117201. [PMID: 35181983 DOI: 10.1002/anie.202117201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Indexed: 11/07/2022]
Abstract
Oxidative coupling of methane (OCM) catalyzed by MnOx -Na2 WO4 /SiO2 has great industrial promise to convert methane directly to C2-3 products, but its high light-off temperature is the most challenging obstacle to commercialization and its working mechanism is still a mystery. We report the discovery of a low-temperature active and selective MnOx -Na2 WO4 /SiO2 catalyst enriched with Q2 units in the SiO2 carrier, being capable of converting 23 % CH4 with 72 % C2-3 selectivity at 660 °C. From experiments and theoretical calculations, a large number of Q2 units in the MnOx -Na2 WO4 /SiO2 catalyst is a trigger for markedly lowering the light-off temperature of the Mn3+ ↔Mn2+ redox cycle involved in the OCM reaction because of the easy formation of MnSiO3 . Notably, the MnSiO3 formation proceeds merely through the SiO2 -involved reaction in the presence of Na2 WO4 : Mn7 SiO12 +6 SiO2 ↔7 MnSiO3 +1.5 O2 . The Na2 WO4 not only drives the light-off of this cycle but also gets it working with substantial selectivity toward C2-3 products. Our findings shine a light on the rational design of more advanced MnOx -Na2 WO4 based OCM catalysts through establishing new Mn3+ ↔Mn2+ redox cycles with lowered light-off temperature.
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Affiliation(s)
- Jiaqi Si
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
| | - Guofeng Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
| | - Weidong Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
| | - Jincun Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
| | - Cairu Guan
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, China
| | - Yong Yang
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, China
| | - Xue-Rong Shi
- Department of Materials Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Yong Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China.,Institute of Eco-Chongming, Shanghai, 202162, China
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10
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Si J, Zhao G, Sun W, Liu J, Guan C, Yang Y, Shi XR, Lu Y. Oxidative Coupling of Methane: Examining the Inactivity of the MnOx‐Na2WO4/SiO2 Catalyst at Low Temperature. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaqi Si
- East China Normal University School of chemistry and molecular engineering CHINA
| | - Guofeng Zhao
- East China Normal University School of chemistry and molecular engineering CHINA
| | - Weidong Sun
- East China Normal University School of chemistry and molecular engineering CHINA
| | - Jincun Liu
- East China Normal University Scool of chemistry and molecular engineering CHINA
| | - Cairu Guan
- ShanghaiTech University - Zhangjiang Campus: ShanghaiTech University School of physical Science and Technology CHINA
| | - Yong Yang
- ShanghaiTech University - Zhangjiang Campus: ShanghaiTech University School of physical science and technology CHINA
| | - Xue-Rong Shi
- Shanghai University of Engineering Science - Songjiang Campus: Shanghai University of Engineering Science Department of Materials Engineering CHINA
| | - Yong Lu
- East China Normal University School of Chemistry and Molecular Engineering 3663 North Zhongshan Road 200062 Shanghai CHINA
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11
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Wang S, Tong H, Li H, Shi X, Liu D, Li J, Guo K, Zhao L, Song S, Chen L, Cheng W, Wang X. Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization. NEW J CHEM 2022. [DOI: 10.1039/d1nj04652g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The ODS efficiency is in the order thiophene > dibenzothiophene > benzothiophene and may be attributed to the combined effect of HPMo and shape selectivity over Nano-TS-1.
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Affiliation(s)
- Siyue Wang
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Huan Tong
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Haonan Li
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Xin Shi
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Di Liu
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Jinhong Li
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Kaixuan Guo
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Liu Zhao
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Shengjie Song
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Lidong Chen
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 110629, Liaoning, China
| | - Weiguo Cheng
- Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, Chinese Academy of Sciences, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiangsheng Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
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12
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Mn2O3-Na2WO4 doping of CexZr1-xO2 enables increased activity and selectivity for low temperature oxidative coupling of methane. J Catal 2021. [DOI: 10.1016/j.jcat.2021.06.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Matras D, Vamvakeros A, Jacques SDM, Grosjean N, Rollins B, Poulston S, Stenning GBG, Godini HR, Drnec J, Cernik RJ, Beale AM. Effect of thermal treatment on the stability of Na-Mn-W/SiO 2 catalyst for the oxidative coupling of methane. Faraday Discuss 2021; 229:176-196. [PMID: 33645610 DOI: 10.1039/c9fd00142e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we investigate the effect of thermal treatment/calcination on the stability and activity of a Na-Mn-W/SiO2 catalyst for the oxidative coupling of methane. The catalyst performance and characterisation measurements suggest that the W species are directly involved in the catalyst active site responsible for CH4 conversion. Under operating conditions, the active components, present in the form of a Na-W-O-Mn molten state, are highly mobile and volatile. By varying the parameters of the calcination protocol, it was shown that these molten components can be partially stabilised, resulting in a catalyst with lower activity (due to loss of surface area) but higher stability even for long duration OCM reaction experiments.
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Affiliation(s)
- Dorota Matras
- School of Materials, University of Manchester, Manchester, Lancashire M13 9PL, UK. and Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK
| | - Antonios Vamvakeros
- Finden Ltd, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK. and Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Simon D M Jacques
- Finden Ltd, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK.
| | - Nicolas Grosjean
- Johnson Matthey Technology Centre, Blount's Court Road, Sonning Common, RG4 9NH, UK
| | - Benjamin Rollins
- Johnson Matthey Technology Centre, Blount's Court Road, Sonning Common, RG4 9NH, UK
| | - Stephen Poulston
- Johnson Matthey Technology Centre, Blount's Court Road, Sonning Common, RG4 9NH, UK
| | - Gavin B G Stenning
- ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - Hamid R Godini
- Technische Universität Berlin, Straße des 17 Juni 135, Sekr. KWT-9, D-10623 Berlin, Germany and Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands
| | - Jakub Drnec
- ESRF - The European Synchrotron, Grenoble, 38000 France
| | - Robert J Cernik
- School of Materials, University of Manchester, Manchester, Lancashire M13 9PL, UK.
| | - Andrew M Beale
- Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK and Finden Ltd, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK. and Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
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14
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Sinev MY, Ivakin YD, Shashkin DP, Fattakhova ZT, Ponomareva EA, Gordienko YA, Bychkov VY. Formation of the Phase Composition of Crystalline Silica in the Processing of Amorphous Precursors in Super- and Subcritical Water Media. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793120070167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Lagunova EA, Ivakin YD, Sinev MY, Shashkin DP, Fattakhova ZT, Gordienko YA. Structuring and Phase Formation in Silica Gel in Water Fluids of Different Densities. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s199079312007009x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Matras D, Vamvakeros A, Jacques SDM, Middelkoop V, Vaughan G, Agote Aran M, Cernik RJ, Beale AM. In situ X-ray diffraction computed tomography studies examining the thermal and chemical stabilities of working Ba 0.5Sr 0.5Co 0.8Fe 0.2O 3-δ membranes during oxidative coupling of methane. Phys Chem Chem Phys 2020; 22:18964-18975. [PMID: 32597462 DOI: 10.1039/d0cp02144j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study we present the results from two in situ X-ray diffraction computed tomography experiments of catalytic membrane reactors (CMRs) using Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) hollow fibre membranes and Na-Mn-W/SiO2 catalyst during the oxidative coupling of methane (OCM) reaction. The negative impact of CO2, when added to the inlet gas stream, is seen to be mainly related to the C2+ yield, while no evidence of carbonate phase(s) formation is found during the OCM experiments. The main degradation mechanism of the CMR is suggested to be primarily associated with the solid-state evolution of the BSCF phase rather than the presence of CO2. Specifically, in situ XRD-CT and post-mortem SEM/EDX measurements revealed a collapse of the cubic BSCF phase and subsequent formation of secondary phases, which include needle-like structures and hexagonal Ba6Co4O12 and formation of a BaWO4 layer, the latter being a result of chemical interaction between the membrane and catalyst materials at high temperatures.
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Affiliation(s)
- Dorota Matras
- School of Materials, University of Manchester, Manchester, Lancashire M13 9PL, UK. and Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK
| | - Antonis Vamvakeros
- Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK and Finden Limited, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK. and Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Simon D M Jacques
- Finden Limited, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK.
| | - Vesna Middelkoop
- Sustainable Materials Management, Flemish Institute for Technological Research, VITO NV, Boeretang 200, Mol, Belgium
| | - Gavin Vaughan
- ESRF - The European Synchrotron, Grenoble, 38000, France
| | - Miren Agote Aran
- Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK and Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Robert J Cernik
- School of Materials, University of Manchester, Manchester, Lancashire M13 9PL, UK.
| | - Andrew M Beale
- Research Complex at Harwell, Harwell Science and Innovation Campus, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0FA, UK and Finden Limited, Merchant House, 5 East St Helen Street, Abingdon, OX14 5EG, UK. and Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
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17
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Werny MJ, Wang Y, Girgsdies F, Schlögl R, Trunschke A. Fluctuating Storage of the Active Phase in a Mn-Na 2 WO 4 /SiO 2 Catalyst for the Oxidative Coupling of Methane. Angew Chem Int Ed Engl 2020; 59:14921-14926. [PMID: 32364281 PMCID: PMC7496389 DOI: 10.1002/anie.202004778] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 11/12/2022]
Abstract
Structural dynamics of a Mn-Na2 WO4 /SiO2 catalyst were detected directly under reaction conditions during the oxidative coupling of methane via in situ XRD and operando Raman spectroscopy. A new concept of fluctuating storage and release of an active phase in heterogeneous catalysis is proposed that involves the transient generation of active sodium oxide species via a reversible reaction of Na2 WO4 with Mn7 SiO12 . The process is enabled by phase transitions and melting at the high reaction temperatures that are typically applied.
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Affiliation(s)
- Maximilian J. Werny
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftBerlinGermany
| | - Yuanqing Wang
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftBerlinGermany
- BasCat—UniCat BASF Joint LabTechnische Universität BerlinGermany
| | - Frank Girgsdies
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftBerlinGermany
| | - Robert Schlögl
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftBerlinGermany
| | - Annette Trunschke
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftBerlinGermany
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18
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Werny MJ, Wang Y, Girgsdies F, Schlögl R, Trunschke A. Fluctuating Storage of the Active Phase in a Mn‐Na
2
WO
4
/SiO
2
Catalyst for the Oxidative Coupling of Methane. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004778] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maximilian J. Werny
- Department of Inorganic Chemistry Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin Germany
| | - Yuanqing Wang
- Department of Inorganic Chemistry Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin Germany
- BasCat—UniCat BASF Joint Lab Technische Universität Berlin Germany
| | - Frank Girgsdies
- Department of Inorganic Chemistry Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin Germany
| | - Annette Trunschke
- Department of Inorganic Chemistry Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin Germany
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19
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Real-time multi-length scale chemical tomography of fixed bed reactors during the oxidative coupling of methane reaction. J Catal 2020. [DOI: 10.1016/j.jcat.2020.03.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Lima DS, Perez-Lopez OW. Oxidative coupling of methane to light olefins using waste eggshell as catalyst. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107928] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Sinev MY. Oxygen Activation and Pathways in High-Temperature Reactions of Light Alkane Oxidation: A Seeming Simplicity of Kinetic Description. KINETICS AND CATALYSIS 2019. [DOI: 10.1134/s0023158419040177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Hayek NS, Khlief GJ, Horani F, Gazit OM. Effect of reaction conditions on the oxidative coupling of methane over doped MnOx-Na2WO4/SiO2 catalyst. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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