1
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Genoux A, Severin K. Nitrous oxide as diazo transfer reagent. Chem Sci 2024:d4sc04530k. [PMID: 39156938 PMCID: PMC11323477 DOI: 10.1039/d4sc04530k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 08/07/2024] [Indexed: 08/20/2024] Open
Abstract
Nitrous oxide, commonly known as "laughing gas", is formed as a by-product in several industrial processes. It is also readily available by thermal decomposition of ammonium nitrate. Traditionally, the chemical valorization of N2O is achieved via oxidation chemistry, where N2O acts as a selective oxygen atom transfer reagent. Recent results have shown that N2O can also function as an efficient diazo transfer reagent. Synthetically useful methods for synthesizing triazenes, N-heterocycles, and azo- or diazo compounds were developed. This review article summarizes significant advancements in this emerging field.
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Affiliation(s)
- Alexandre Genoux
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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2
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Wu K, Zanina A, Kondratenko VA, Xu L, Li J, Chen J, Lund H, Bartling S, Li Y, Jiang G, Kondratenko EV. Fundamentals of Unanticipated Efficiency of Gd 2O 3-based Catalysts in Oxidative Coupling of Methane. Angew Chem Int Ed Engl 2024; 63:e202319192. [PMID: 38271543 DOI: 10.1002/anie.202319192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024]
Abstract
Improving the selectivity in the oxidative coupling of methane to ethane/ethylene poses a significant challenge for commercialization. The required improvements are hampered by the uncertainties associated with the reaction mechanism due to its complexity. Herein, we report about 90 % selectivity to the target products at 11 % methane conversion over Gd2O3-based catalysts at 700 °C using N2O as the oxidant. Sophisticated kinetic studies have suggested the nature of adsorbed oxygen species and their binding strength as key parameters for undesired methane oxidation to carbon oxides. These descriptors can be controlled by a metal oxide promoter for Gd2O3.
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Affiliation(s)
- Kai Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Anna Zanina
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Vita A Kondratenko
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Lin Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Jianshu Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Juan Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Henrik Lund
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Stephan Bartling
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Yuming Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Evgenii V Kondratenko
- Department of Advanced methods for applied catalysis, Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
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3
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Yang Q, Surin I, Geiger J, Eliasson H, Agrachev M, Kondratenko VA, Zanina A, Krumeich F, Jeschke G, Erni R, Kondratenko EV, López N, Pérez-Ramírez J. Lattice-Stabilized Chromium Atoms on Ceria for N 2O Synthesis. ACS Catal 2023; 13:15977-15990. [PMID: 38125976 PMCID: PMC10728900 DOI: 10.1021/acscatal.3c04463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
The development of selective catalysts for direct conversion of ammonia into nitrous oxide, N2O, will circumvent the conventional five-step manufacturing process and enable its wider utilization in oxidation catalysis. Deviating from commonly accepted catalyst design principles for this reaction, reliant on manganese oxide, we herein report an efficient system comprised of isolated chromium atoms (1 wt %) stabilized in the ceria lattice by coprecipitation. The latter, in contrast to a simple impregnation approach, ensures firm metal anchoring and results in stable and selective N2O production over 100 h on stream up to 79% N2O selectivity at full NH3 conversion. Raman, electron paramagnetic resonance, and in situ UV-vis spectroscopies reveal that chromium incorporation enhances the density of oxygen vacancies and the rate of their generation and healing. Accordingly, temporal analysis of products, kinetic studies, and atomistic simulations show lattice oxygen of ceria to directly participate in the reaction, establishing the cocatalytic role of the carrier. Coupled with the dynamic restructuring of chromium sites to stabilize intermediates of N2O formation, these factors enable catalytic performance on par with or exceeding benchmark systems. These findings demonstrate how nanoscale engineering can elevate a previously overlooked metal into a highly competitive catalyst for selective ammonia oxidation to N2O, paving the way toward industrial implementation.
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Affiliation(s)
- Qingxin Yang
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Ivan Surin
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Julian Geiger
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Henrik Eliasson
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Mikhail Agrachev
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Vita A. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Anna Zanina
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Frank Krumeich
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Gunnar Jeschke
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Rolf Erni
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Evgenii V. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Núria López
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Javier Pérez-Ramírez
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
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4
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Nesterenko N, Medeiros-Costa IC, Clatworthy EB, Cruchade H, Konnov SV, Dath JP, Gilson JP, Mintova S. Methane-to-chemicals: a pathway to decarbonization. Natl Sci Rev 2023; 10:nwad116. [PMID: 37565204 PMCID: PMC10411677 DOI: 10.1093/nsr/nwad116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 08/12/2023] Open
Abstract
The utilization of methane for chemical production, often considered as the future of petrochemistry, historically could not compete economically with conventional processes due to higher investment costs. Achieving sustainability and decarbonization of the downstream industry by integration with a methane-to-chemicals process may provide an opportunity to unlock the future for these technologies. Gas-to-chemicals is an efficient tool to boost the decarbonization potential of renewable energy. While the current implementation of carbon capture utilization and storage (CCUS) technologies is of great importance for industrial decarbonization, a shift to greener CO2-free processes and CO2 utilization from external sources for manufacturing valuable goods is highly preferred. This review outlines potential options for how a methane-to-chemicals process could support decarbonization of the downstream industry.
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Affiliation(s)
- Nikolai Nesterenko
- TotalEnergies One Tech Belgium, Zone Industrielle C, Seneffe 7181, Belgium
| | | | - Edwin B Clatworthy
- Laboratoire Catalyse et Spectrochimie (LCS), ENSICAEN, CNRS, Normandie Université, Caen 14050, France
| | - Hugo Cruchade
- Laboratoire Catalyse et Spectrochimie (LCS), ENSICAEN, CNRS, Normandie Université, Caen 14050, France
| | - Stanislav V Konnov
- Laboratoire Catalyse et Spectrochimie (LCS), ENSICAEN, CNRS, Normandie Université, Caen 14050, France
| | - Jean-Pierre Dath
- TotalEnergies One Tech Belgium, Zone Industrielle C, Seneffe 7181, Belgium
| | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie (LCS), ENSICAEN, CNRS, Normandie Université, Caen 14050, France
| | - Svetlana Mintova
- TotalEnergies One Tech Belgium, Zone Industrielle C, Seneffe 7181, Belgium
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5
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Terlingen B, Bos JW, Ahr M, Monai M, van Lare C, Weckhuysen BM. Europium–Magnesium–Aluminum-Based Mixed-Metal Oxides as Highly Active Methane Oxychlorination Catalysts. ACS Catal 2023; 13:5147-5158. [PMID: 37123594 PMCID: PMC10127201 DOI: 10.1021/acscatal.2c06344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/18/2023] [Indexed: 04/03/2023]
Abstract
Methane oxychlorination (MOC) is a promising reaction for the production of liquefied methane derivatives. Even though catalyst design is still in its early stages, the general trend is that benchmark catalyst materials have a redox-active site, with, e.g., Cu2+, Ce4+, and Pd2+ as prominent showcase examples. However, with the identification of nonreducible LaOCl moiety as an active center for MOC, it was demonstrated that a redox-active couple is not a requirement to establish a high activity. In this work, we show that Mg2+-Al3+-based mixed-metal oxide (MMO) materials are highly active and stable MOC catalysts. The synergistic interaction between Mg2+ and Al3+ could be exploited due to the fact that a homogeneous distribution of the chemical elements was achieved. This interaction was found to be crucial for the unexpectedly high MOC activity, as reference MgO and γ-Al2O3 materials did not show any significant activity. Operando Raman spectroscopy revealed that Mg2+ acted as a chlorine buffer and subsequently as a chlorinating agent for Al3+, which was the active metal center in the methane activation step. The addition of the redox-active Eu3+ to the nonreducible Mg2+-Al3+ MMO catalyst enabled further tuning of the catalytic performance and made the EuMg3Al MMO catalyst one of the most active MOC catalyst materials reported so far. Combined operando Raman/luminescence spectroscopy revealed that the chlorination behavior of Mg2+ and Eu3+ was correlated, suggesting that Mg2+ also acted as a chlorinating agent for Eu3+. These results indicate that both redox activity and synergistic effects between Eu, Mg, and Al are required to obtain high catalytic performance. The importance of elemental synergy and redox properties is expected to be translatable to the oxychlorination of other hydrocarbons, such as light alkanes, due to large similarities in catalytic chemistry.
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6
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Filardi LR, Yang F, Guo J, Kronawitter CX, Runnebaum RC. Surface basicity controls C-C coupling rates during carbon dioxide-assisted methane coupling over bifunctional Ca/ZnO catalysts. Phys Chem Chem Phys 2023; 25:9859-9867. [PMID: 36945899 DOI: 10.1039/d3cp00332a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Carbon dioxide-assisted coupling of methane offers an approach to chemically upgrade two greenhouse gases and components of natural gas to produce ethylene and syngas. Prior research on this reaction has concentrated efforts on catalyst discovery, which has indicated that composites comprised of both reducible and basic oxides are especially promising. There is a need for detailed characterization of these bifunctional oxide systems to provide a more fundamental understanding of the active sites and their roles in the reaction. We studied the dependence of physical and electronic properties of Ca-modified ZnO materials on Ca content via X-ray photoelectron and absorption spectroscopies, electron microscopy, and infrared spectroscopic temperature-programmed desorption (IR-TPD). It was found that introduction of only 0.6 mol% Ca onto a ZnO surface is necessary to induce significant improvement in the catalytic production of C2 species: C2 selectivity increases from 5% on un-modified ZnO to 58%, at similar conversions. Evidence presented shows that this selectivity increase results from the formation of an interface between the basic CaO and reducible ZnO phases. The basicity of these interface sites correlates directly with catalytic activity over a wide composition range, and this relationship indicates that moderate CO2 adsorption strength is optimal for CH4 coupling. These results demonstrate, for the first time to our knowledge, a volcano-type relationship between CO2-assisted CH4 coupling activity and catalyst surface basicity, which can inform further catalyst development.
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Affiliation(s)
- Leah R Filardi
- Department of Chemical Engineering, University of California Davis, Davis, CA 95616, USA.
| | - Feipeng Yang
- Advanced Light Source, Lawrence Berkeley Nation Laboratory, Berkeley, CA 94720, USA
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley Nation Laboratory, Berkeley, CA 94720, USA
| | - Coleman X Kronawitter
- Department of Chemical Engineering, University of California Davis, Davis, CA 95616, USA.
| | - Ron C Runnebaum
- Department of Chemical Engineering, University of California Davis, Davis, CA 95616, USA.
- Department of Viticulture and Enology, University of California Davis, Davis, CA 95616, USA
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7
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Carlotto S. Al- and Mg-doped SrTiO3 perovskite steps: The catalytic performance for oxidative coupling of methane. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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8
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Wang J, Cai L, Cao Z, Zhu X, Yang W. Perovskite catalysts for oxidative coupling of methane improved by Y‐doping. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jingyi Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
- University of Chinese Academy of Sciences Beijing China
| | - Lili Cai
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
| | - Zhongwei Cao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
| | - Xuefeng Zhu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
- University of Chinese Academy of Sciences Beijing China
| | - Weishen Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
- University of Chinese Academy of Sciences Beijing China
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9
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Cruchade H, Medeiros-Costa IC, Nesterenko N, Gilson JP, Pinard L, Beuque A, Mintova S. Catalytic Routes for Direct Methane Conversion to Hydrocarbons and Hydrogen: Current State and Opportunities. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hugo Cruchade
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050Caen, France
| | | | | | - Jean-Pierre Gilson
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050Caen, France
| | - Ludovic Pinard
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050Caen, France
| | - Antoine Beuque
- Institut de Chimie des Milieux et Matériaux de Poitiers (ICM2P), UMR 7285 CNRS, 86073Poitiers, France
| | - Svetlana Mintova
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050Caen, France
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10
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Liu Y, Chen Y, Jiang W, Kong T, Camargo PHC, Gao C, Xiong Y. Highly Efficient and Selective Photocatalytic Nonoxidative Coupling of Methane to Ethylene over Pd-Zn Synergistic Catalytic Sites. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9831340. [PMID: 36452434 PMCID: PMC9680520 DOI: 10.34133/2022/9831340] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 10/10/2022] [Indexed: 06/29/2024]
Abstract
Photocatalytic nonoxidative coupling of CH4 to multicarbon (C2+) hydrocarbons (e.g., C2H4) and H2 under ambient conditions provides a promising energy-conserving approach for utilization of carbon resource. However, as the methyl intermediates prefer to undergo self-coupling to produce ethane, it is a challenging task to control the selective conversion of CH4 to higher value-added C2H4. Herein, we adopt a synergistic catalysis strategy by integrating Pd-Zn active sites on visible light-responsive defective WO3 nanosheets for synergizing the adsorption, activation, and dehydrogenation processes in CH4 to C2H4 conversion. Benefiting from the synergy, our model catalyst achieves a remarkable C2+ compounds yield of 31.85 μmol·g-1·h-1 with an exceptionally high C2H4 selectivity of 75.3% and a stoichiometric H2 evolution. In situ spectroscopic studies reveal that the Zn sites promote the adsorption and activation of CH4 molecules to generate methyl and methoxy intermediates with the assistance of lattice oxygen, while the Pd sites facilitate the dehydrogenation of methoxy to methylene radicals for producing C2H4 and suppress overoxidation. This work demonstrates a strategy for designing efficient photocatalysts toward selective coupling of CH4 to higher value-added chemicals and highlights the importance of synergistic active sites to the synergy of key steps in catalytic reactions.
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Affiliation(s)
- Yanduo Liu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute of Energy Hefei Comprehensive National Science Center, Hefei, Anhui 230031, China
| | - Yihong Chen
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wenbin Jiang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Tingting Kong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | | | - Chao Gao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yujie Xiong
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute of Energy Hefei Comprehensive National Science Center, Hefei, Anhui 230031, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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11
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Facile synthesis of polyoxometalate supported on magnetic graphene oxide as a hybrid catalyst for efficient oxidation of aldehydes. Sci Rep 2022; 12:18491. [PMID: 36323774 PMCID: PMC9630420 DOI: 10.1038/s41598-022-21991-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022] Open
Abstract
In the present study, Anderson-type polyoxometalate [N(C4H9)4] [FeMo6O18(OH)6] (FeMo6) was immobilized on amino-modified magnetic graphene oxide and employed as a new hybrid catalyst in oxidation of aldehydes to carboxylic acids. The synthesized hybrid catalyst Fe3O4/GO/[FeMo6] was characterized using thermogravimetric analysis (TGA), scanning electron microscopies (SEM), Fourier transform infrared (FT-IR), vibrating sample magnetometry (VSM), energy-dispersive X-ray analysis (EDX), Raman spectroscopy and inductively coupled plasma atomic emission spectroscopy (ICP-OES). The results indicated that our catalyst was quite active in oxidizing the aldehydes to their corresponding carboxylic acids in the presence of hydrogen peroxide. The synthesized catalyst can be easily separated from the reaction medium and reused for six consecutive runs without a significant reduction in reaction efficiency.
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12
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Zhang K, Sun S, Huang K. Oxidative coupling of methane (OCM) conversion into C2 products through a CO2/O2 co-transport membrane reactor. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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13
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Impact of Nickel Phosphides Over Ni/SiO2 Catalysts in Dry Methane Reforming. Catal Letters 2022. [DOI: 10.1007/s10562-022-04199-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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14
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Song H, Ye J. Direct photocatalytic conversion of methane to value-added chemicals. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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15
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Kumar P, Al-Attas TA, Hu J, Kibria MG. Single Atom Catalysts for Selective Methane Oxidation to Oxygenates. ACS NANO 2022; 16:8557-8618. [PMID: 35638813 DOI: 10.1021/acsnano.2c02464] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct conversion of methane (CH4) to C1-2 liquid oxygenates is a captivating approach to lock carbons in transportable value-added chemicals, while reducing global warming. Existing approaches utilizing the transformation of CH4 to liquid fuel via tandemized steam methane reforming and the Fischer-Tropsch synthesis are energy and capital intensive. Chemocatalytic partial oxidation of methane remains challenging due to the negligible electron affinity, poor C-H bond polarizability, and high activation energy barrier. Transition-metal and stoichiometric catalysts utilizing harsh oxidants and reaction conditions perform poorly with randomized product distribution. Paradoxically, the catalysts which are active enough to break C-H also promote overoxidation, resulting in CO2 generation and reduced carbon balance. Developing catalysts which can break C-H bonds of methane to selectively make useful chemicals at mild conditions is vital to commercialization. Single atom catalysts (SACs) with specifically coordinated metal centers on active support have displayed intrigued reactivity and selectivity for methane oxidation. SACs can significantly reduce the activation energy due to induced electrostatic polarization of the C-H bond to facilitate the accelerated reaction rate at the low reaction temperature. The distinct metal-support interaction can stabilize the intermediate and prevent the overoxidation of the reaction products. The present review accounts for recent progress in the field of SACs for the selective oxidation of CH4 to C1-2 oxygenates. The chemical nature of catalytic sites, effects of metal-support interaction, and stabilization of intermediate species on catalysts to minimize overoxidation are thoroughly discussed with a forward-looking perspective to improve the catalytic performance.
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Affiliation(s)
- Pawan Kumar
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Tareq A Al-Attas
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Md Golam Kibria
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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16
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Progress and Recent Strategies in the Synthesis and Catalytic Applications of Perovskites Based on Lanthanum and Aluminum. MATERIALS 2022; 15:ma15093288. [PMID: 35591622 PMCID: PMC9100353 DOI: 10.3390/ma15093288] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 11/17/2022]
Abstract
Lanthanum aluminate-based perovskite (LaAlO3) has excellent stability at high temperatures, low toxicity, and high chemical resistance and also offers wide versatility to the substitution of La3+ and Al3+, thus, allowing it to be applied as a catalyst, nano-adsorbent, sensor, and microwave dielectric resonator, amongst other equally important uses. As such, LaAlO3 perovskites have gained importance in recent years. This review considers the extensive literature of the past 10 years on the synthesis and catalytic applications of perovskites based on lanthanum and aluminum (LaAlO3). The aim is, first, to provide an overview of the structure, properties, and classification of perovskites. Secondly, the most recent advances in synthetic methods, such as solid-state methods, solution-mediated methods (co-precipitation, sol–gel, and Pechini synthesis), thermal treatments (combustion, microwave, and freeze drying), and hydrothermal and solvothermal methods, are also discussed. The most recent energetic catalytic applications (the dry and steam reforming of methane; steam reforming of toluene, glycerol, and ethanol; and oxidative coupling of methane, amongst others) using these functional materials are also addressed. Finally, the synthetic challenges, advantages, and limitations associated with the preparation methods and catalytic applications are discussed.
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17
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Assessment of catalysts for oxidative coupling of methane and ethylene. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Yamamoto M, Zhao Q, Goto S, Gu Y, Toriyama T, Yamamoto T, Nishihara H, Aziz A, Crespo-Otero R, Di Tommaso D, Tamura M, Tomishige K, Kyotani T, Yamazaki K. Porous nanographene formation on γ-alumina nanoparticles via transition-metal-free methane activation. Chem Sci 2022; 13:3140-3146. [PMID: 35414888 PMCID: PMC8926170 DOI: 10.1039/d1sc06578e] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/22/2022] [Indexed: 11/24/2022] Open
Abstract
γ-Al2O3 nanoparticles promote pyrolytic carbon deposition of CH4 at temperatures higher than 800 °C to give single-walled nanoporous graphene (NPG) materials without the need for transition metals as reaction centers. To accelerate the development of efficient reactions for NPG synthesis, we have investigated early-stage CH4 activation for NPG formation on γ-Al2O3 nanoparticles via reaction kinetics and surface analysis. The formation of NPG was promoted at oxygen vacancies on (100) surfaces of γ-Al2O3 nanoparticles following surface activation by CH4. The kinetic analysis was well corroborated by a computational study using density functional theory. Surface defects generated as a result of surface activation by CH4 make it kinetically feasible to obtain single-layered NPG, demonstrating the importance of precise control of oxygen vacancies for carbon growth. Oxygen vacancies on the (100) surface of γ-Al2O3 nanoparticles catalyse CH4-CVD for single-layered nanoporous graphenes with no transition metal reaction centre. The rate-limiting step is the proton transfer (PT) in the activation of CH4 on them.![]()
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Affiliation(s)
- Masanori Yamamoto
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
| | - Qi Zhao
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Shunsuke Goto
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
| | - Yu Gu
- Graduate School of Engineering, Tohoku University 6-6-07 Aramaki, Aoba Sendai 980-8579 Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Center, Kyushu University Motooka 744, Nishi Fukuoka 819-0395 Japan
| | - Tomokazu Yamamoto
- The Ultramicroscopy Research Center, Kyushu University Motooka 744, Nishi Fukuoka 819-0395 Japan
| | - Hirotomo Nishihara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
| | - Alex Aziz
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Rachel Crespo-Otero
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Devis Di Tommaso
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Masazumi Tamura
- Graduate School of Engineering, Tohoku University 6-6-07 Aramaki, Aoba Sendai 980-8579 Japan
| | - Keiichi Tomishige
- Graduate School of Engineering, Tohoku University 6-6-07 Aramaki, Aoba Sendai 980-8579 Japan
| | - Takashi Kyotani
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
| | - Kaoru Yamazaki
- Institute for Materials Research, Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
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19
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Wang ZY, He ZH, Li LY, Yang SY, He MX, Sun YC, Wang K, Chen JG, Liu ZT. Research progress of CO 2 oxidative dehydrogenation of propane to propylene over Cr-free metal catalysts. RARE METALS 2022; 41:2129-2152. [PMID: 35291268 PMCID: PMC8913863 DOI: 10.1007/s12598-021-01959-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/13/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
CO2-assisted oxidative dehydrogenation of propane (CO2-ODHP) is an attractive strategy to offset the demand gap of propylene due to its potentiality of reducing CO2 emissions, especially under the demands of peaking CO2 emissions and carbon neutrality. The introduction of CO2 as a soft oxidant into the reaction not only averts the over-oxidation of products, but also maintains the high oxidation state of the redox-active sites. Furthermore, the presence of CO2 increases the conversion of propane by coupling the dehydrogenation of propane (DHP) with the reverse water gas reaction (RWGS) and inhibits the coking formation to prolong the lifetime of catalysts via the reverse Boudouard reaction. An effective catalyst should selectively activate the C-H bond but suppress the C-C cleavage. However, to prepare such a catalyst remains challenging. Chromium-based catalysts are always applied in industrial application of DHP; however, their toxic properties are harmful to the environment. In this aspect, exploring environment-friendly and sustainable catalytic systems with Cr-free is an important issue. In this review, we outline the development of the CO2-ODHP especially in the last ten years, including the structural information, catalytic performances, and mechanisms of chromium-free metal-based catalyst systems, and the role of CO2 in the reaction. We also present perspectives for future progress in the CO2-ODHP.
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Affiliation(s)
- Zhong-Yu Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Zhen-Hong He
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Long-Yao Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Shao-Yan Yang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Meng-Xin He
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Yong-Chang Sun
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Kuan Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Jian-Gang Chen
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Zhao-Tie Liu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
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20
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Wang X, Luo N, Wang F. Advances and challenges of photocatalytic methane C−C coupling. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xueyuan Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian Liaoning 116024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Nengchao Luo
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
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21
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Jaroenpanon K, Tiyatha W, Chukeaw T, Sringam S, Witoon T, Wattanakit C, Chareonpanich M, Faungnawakij K, Seubsai A. Synthesis of Na2WO4-MnxOy supported on SiO2 or La2O3 as fiber catalysts by electrospinning for oxidative coupling of methane. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103577] [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] Open
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22
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Hu W, Xu Y, Xin J, Liu B, Jiang F, Liu X. Stable co-production of olefins and aromatics from ethane over Co 2+-exchanged HZSM-5 zeolite. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00664b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Olefins and aromatics can be stably co-produced from ethane over a Co-exchanged HZSM-5 catalyst in which isolated Co(ii) species are anchored at Brønsted acid sites and active for efficient ethane dehydrogenation.
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Affiliation(s)
- Wenjin Hu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Yuebing Xu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Jian Xin
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Feng Jiang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Xiaohao Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
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23
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Tang Y, Li Y, Feng Tao F. Activation and catalytic transformation of methane under mild conditions. Chem Soc Rev 2021; 51:376-423. [PMID: 34904592 DOI: 10.1039/d1cs00783a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In the last few decades, worldwide scientists have been motivated by the promising production of chemicals from the widely existing methane (CH4) under mild conditions for both chemical synthesis with low energy consumption and climate remediation. To achieve this goal, a whole library of catalytic chemistries of transforming CH4 to various products under mild conditions is required to be developed. Worldwide scientists have made significant efforts to reach this goal. These significant efforts have demonstrated the feasibility of oxidation of CH4 to value-added intermediate compounds including but not limited to CH3OH, HCHO, HCOOH, and CH3COOH under mild conditions. The fundamental understanding of these chemical and catalytic transformations of CH4 under mild conditions have been achieved to some extent, although currently neither a catalyst nor a catalytic process can be used for chemical production under mild conditions at a large scale. In the academic community, over ten different reactions have been developed for converting CH4 to different types of oxygenates under mild conditions in terms of a relatively low activation or catalysis temperature. However, there is still a lack of a molecular-level understanding of the activation and catalysis processes performed in extremely complex reaction environments under mild conditions. This article reviewed the fundamental understanding of these activation and catalysis achieved so far. Different oxidative activations of CH4 or catalytic transformations toward chemical production under mild conditions were reviewed in parallel, by which the trend of developing catalysts for a specific reaction was identified and insights into the design of these catalysts were gained. As a whole, this review focused on discussing profound insights gained through endeavors of scientists in this field. It aimed to present a relatively complete picture for the activation and catalytic transformations of CH4 to chemicals under mild conditions. Finally, suggestions of potential explorations for the production of chemicals from CH4 under mild conditions were made. The facing challenges to achieve high yield of ideal products were highlighted and possible solutions to tackle them were briefly proposed.
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Affiliation(s)
- Yu Tang
- Institute of Molecular Catalysis and In situ/operando Studies, College of Chemistry, Fuzhou University, Fujian, 350000, China.
| | - Yuting Li
- Department of Chemical and Petroleum Engineering, University of Kansas, KS 66045, USA.
| | - Franklin Feng Tao
- Department of Chemical and Petroleum Engineering, University of Kansas, KS 66045, USA.
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24
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Oxidative coupling of methane over Y2O3 and Sr–Y2O3 nanorods. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-02085-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Lezcano G, Velisoju VK, Kulkarni SR, Ramirez A, Castaño P. Engineering Thermally Resistant Catalytic Particles for Oxidative Coupling of Methane Using Spray-Drying and Incorporating SiC. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gontzal Lezcano
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Vijay K. Velisoju
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shekhar R. Kulkarni
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Adrian Ramirez
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Pedro Castaño
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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26
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Kiani D, Sourav S, Wachs IE, Baltrusaitis J. A combined computational and experimental study of methane activation during oxidative coupling of methane (OCM) by surface metal oxide catalysts. Chem Sci 2021; 12:14143-14158. [PMID: 34760199 PMCID: PMC8565385 DOI: 10.1039/d1sc02174e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 10/04/2021] [Indexed: 11/21/2022] Open
Abstract
The experimentally validated computational models developed herein, for the first time, show that Mn-promotion does not enhance the activity of the surface Na2WO4 catalytic active sites for CH4 heterolytic dissociation during OCM. Contrary to previous understanding, it is demonstrated that Mn-promotion poisons the surface WO4 catalytic active sites resulting in surface WO5 sites with retarded kinetics for C-H scission. On the other hand, dimeric Mn2O5 surface sites, identified and studied via ab initio molecular dynamics and thermodynamics, were found to be more efficient in activating CH4 than the poisoned surface WO5 sites or the original WO4 sites. However, the surface reaction intermediates formed from CH4 activation over the Mn2O5 surface sites are more stable than those formed over the Na2WO4 surface sites. The higher stability of the surface intermediates makes their desorption unfavorable, increasing the likelihood of over-oxidation to CO x , in agreement with the experimental findings in the literature on Mn-promoted catalysts. Consequently, the Mn-promoter does not appear to have an essential positive role in synergistically tuning the structure of the Na2WO4 surface sites towards CH4 activation but can yield MnO x surface sites that activate CH4 faster than Na2WO4 surface sites, but unselectively.
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Affiliation(s)
- Daniyal Kiani
- Department of Chemical and Biomolecular Engineering, Lehigh University B336 Iacocca Hall, 111 Research Drive Bethlehem PA 18015 USA
| | - Sagar Sourav
- Department of Chemical and Biomolecular Engineering, Lehigh University B336 Iacocca Hall, 111 Research Drive Bethlehem PA 18015 USA
| | - Israel E Wachs
- Department of Chemical and Biomolecular Engineering, Lehigh University B336 Iacocca Hall, 111 Research Drive Bethlehem PA 18015 USA
| | - Jonas Baltrusaitis
- Department of Chemical and Biomolecular Engineering, Lehigh University B336 Iacocca Hall, 111 Research Drive Bethlehem PA 18015 USA
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27
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Ramaiyan KP, Denoyer LH, Benavidez A, Garzon FH. Selective electrochemical oxidative coupling of methane mediated by Sr 2Fe 1.5Mo 0.5O 6-δ and its chemical stability. Commun Chem 2021; 4:139. [PMID: 36697640 PMCID: PMC9814554 DOI: 10.1038/s42004-021-00568-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/17/2021] [Indexed: 01/28/2023] Open
Abstract
Efficient conversion of methane to value-added products such as olefins and aromatics has been in pursuit for the past few decades. The demand has increased further due to the recent discoveries of shale gas reserves. Oxidative and non-oxidative coupling of methane (OCM and NOCM) have been actively researched, although catalysts with commercially viable conversion rates are not yet available. Recently, [Formula: see text] (SFMO-075Fe) has been reported to activate methane in an electrochemical OCM (EC-OCM) set up with a C2 selectivity of 82.2%1. However, alkaline earth metal-based materials are known to suffer chemical instability in carbon-rich environments. Hence, here we evaluated the chemical stability of SFMO in carbon-rich conditions with varying oxygen concentrations at temperatures relevant for EC-OCM. SFMO-075Fe showed good methane activation properties especially at low overpotentials but suffered poor chemical stability as observed via thermogravimetric, powder XRD, and XPS measurements where SrCO3 was observed to be a major decomposition product along with SrMoO3 and MoC. Nevertheless, our study demonstrates that electrochemical methods could be used to selectively activate methane towards partial oxidation products such as ethylene at low overpotentials while higher applied biases result in the complete oxidation of methane to carbon dioxide and water.
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Affiliation(s)
- Kannan P. Ramaiyan
- grid.266832.b0000 0001 2188 8502Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87106 USA
| | - Luke H. Denoyer
- grid.266832.b0000 0001 2188 8502Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87106 USA
| | - Angelica Benavidez
- grid.266832.b0000 0001 2188 8502Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87106 USA
| | - Fernando H. Garzon
- grid.266832.b0000 0001 2188 8502Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87106 USA
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28
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Jiang X, Sharma L, Fung V, Park SJ, Jones CW, Sumpter BG, Baltrusaitis J, Wu Z. Oxidative Dehydrogenation of Propane to Propylene with Soft Oxidants via Heterogeneous Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03999] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Jiang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Lohit Sharma
- Department of Chemical & Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Victor Fung
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sang Jae Park
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Christopher W. Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Bobby G. Sumpter
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jonas Baltrusaitis
- Department of Chemical & Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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