1
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Zhou X, Price GA, Sunley GJ, Copéret C. Small Cobalt Nanoparticles Favor Reverse Water-Gas Shift Reaction Over Methanation Under CO 2 Hydrogenation Conditions. Angew Chem Int Ed Engl 2023; 62:e202314274. [PMID: 37955591 DOI: 10.1002/anie.202314274] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/14/2023]
Abstract
Cobalt-based catalysts are well-known to convert syngas into a variety of Fischer-Tropsch (FTS) products depending on the various reaction parameters, in particular particle size. In contrast, the reactivity of these particles has been much less investigated in the context of CO2 hydrogenation. In that context, Surface organometallic chemistry (SOMC) was employed to synthesize highly dispersed cobalt nanoparticles (Co-NPs) with particle sizes ranging from 1.6 to 3.0 nm. These SOMC-derived Co-NPs display significantly different catalytic performances under CO2 hydrogenation conditions: while the smallest cobalt nanoparticles (1.6 nm) catalyze mainly the reverse water-gas shift (rWGS) reaction, the larger nanoparticles (2.1-3.0 nm) favor the expected methanation activity. Operando X-ray absorption spectroscopy shows that the smaller cobalt particles are fully oxidized under CO2 hydrogenation conditions, while the larger ones remain mostly metallic, paralleling the observed difference of catalytic performances. This fundamental shift of selectivity, away from methanation to reverse water-gas shift for the smaller nanoparticles is noteworthy and correlates with the formation of CoO under CO2 hydrogenation conditions.
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Affiliation(s)
- Xiaoyu Zhou
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Gregory A Price
- BP Innovation & Engineering, Applied Sciences, BP plc, Saltend, Hull, HU12 8DS, UK
| | - Glenn J Sunley
- BP Innovation & Engineering, Applied Sciences, BP plc, Saltend, Hull, HU12 8DS, UK
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
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2
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Srichaisiriwech W, Tepamatr P. Monometallic and Bimetallic Catalysts Supported on Praseodymium-Doped Ceria for the Water-Gas Shift Reaction. Molecules 2023; 28:8146. [PMID: 38138634 PMCID: PMC10745666 DOI: 10.3390/molecules28248146] [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: 10/13/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The water-gas shift (WGS) performance was investigated over 5%Ni/CeO2, 5%Ni/Ce0.95Pr0.05O1.975, and 1%Re4%Ni/Ce0.95Pr0.05O1.975 catalysts to decrease the CO amount and generate extra H2. CeO2 and Pr-doped CeO2 mixed oxides were synthesized using a combustion method. After that, Ni and Re were loaded onto the ceria support via an impregnation method. The structural and redox characteristics of monometallic Ni and bimetallic NiRe materials, which affect their water-gas shift performance, were investigated. The results show that the Pr addition into Ni/ceria increases the specific surface area, decreases the ceria crystallite size, and improves the dispersion of Ni on the CeO2 surface. Furthermore, Re addition results in the enhancement of the WGS performance of the Ni/Ce0.95Pr0.05O1.975 catalyst. Among the studied catalysts, the ReNi/Ce0.95Pr0.05O1.975 catalyst showed the highest catalytic activity, reaching 96% of CO conversion at 330°. It was established that the occurrence of more oxygen vacancies accelerates the redox process at the ceria surface. In addition, an increase in the Ni dispersion, Ni surface area, and surface acidity has a positive effect on hydrogen generation during the water-gas shift reaction due to favored CO adsorption.
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Affiliation(s)
| | - Pannipa Tepamatr
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand;
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3
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Qiu C, Odarchenko Y, Meng Q, Dong H, Gonzalez IL, Panchal M, Olalde-Velasco P, Maccherozzi F, Zanetti-Domingues L, Martin-Fernandez ML, Beale AM. Compositional Evolution of Individual CoNPs on Co/TiO 2 during CO and Syngas Treatment Resolved through Soft XAS/X-PEEM. ACS Catal 2023; 13:15956-15966. [PMID: 38125980 PMCID: PMC10729030 DOI: 10.1021/acscatal.3c03214] [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: 07/14/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 12/23/2023]
Abstract
The nanoparticle (NP) redox state is an important parameter in the performance of cobalt-based Fischer-Tropsch synthesis (FTS) catalysts. Here, the compositional evolution of individual CoNPs (6-24 nm) in terms of the oxide vs metallic state was investigated in situ during CO/syngas treatment using spatially resolved X-ray absorption spectroscopy (XAS)/X-ray photoemission electron microscopy (X-PEEM). It was observed that in the presence of CO, smaller CoNPs (i.e., ≤12 nm in size) remained in the metallic state, whereas NPs ≥ 15 nm became partially oxidized, suggesting that the latter were more readily able to dissociate CO. In contrast, in the presence of syngas, the oxide content of NPs ≥ 15 nm reduced, while it increased in quantity in the smaller NPs; this reoxidation that occurs primarily at the surface proved to be temporary, reforming the reduced state during subsequent UHV annealing. O K-edge measurements revealed that a key parameter mitigating the redox behavior of the CoNPs were proximate oxygen vacancies (Ovac). These results demonstrate the differences in the reducibility and the reactivity of Co NP size on a Co/TiO2 catalyst and the effect Ovac have on these properties, therefore yielding a better understanding of the physicochemical properties of this popular choice of FTS catalysts.
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Affiliation(s)
- Chengwu Qiu
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Yaroslav Odarchenko
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Qingwei Meng
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006 (China)
| | - Hongyang Dong
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Ines Lezcano Gonzalez
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Monik Panchal
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | | | | | | | | | - Andrew M. Beale
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Research
Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
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4
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Wang M, Wang P, Zhang G, Cheng Z, Zhang M, Liu Y, Li R, Zhu J, Wang J, Bian K, Liu Y, Ding F, Senftle TP, Nie X, Fu Q, Song C, Guo X. Stabilizing Co 2C with H 2O and K promoter for CO 2 hydrogenation to C 2+ hydrocarbons. SCIENCE ADVANCES 2023; 9:eadg0167. [PMID: 37327337 DOI: 10.1126/sciadv.adg0167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 05/11/2023] [Indexed: 06/18/2023]
Abstract
The decomposition of cobalt carbide (Co2C) to metallic cobalt in CO2 hydrogenation results in a notable drop in the selectivity of valued C2+ products, and the stabilization of Co2C remains a grand challenge. Here, we report an in situ synthesized K-Co2C catalyst, and the selectivity of C2+ hydrocarbons in CO2 hydrogenation achieves 67.3% at 300°C, 3.0 MPa. Experimental and theoretical results elucidate that CoO transforms to Co2C in the reaction, while the stabilization of Co2C is dependent on the reaction atmosphere and the K promoter. During the carburization, the K promoter and H2O jointly assist in the formation of surface C* species via the carboxylate intermediate, while the adsorption of C* on CoO is enhanced by the K promoter. The lifetime of the K-Co2C is further prolonged from 35 hours to over 200 hours by co-feeding H2O. This work provides a fundamental understanding toward the role of H2O in Co2C chemistry, as well as the potential of extending its application in other reactions.
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Affiliation(s)
- Mingrui Wang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Peng Wang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Guanghui Zhang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zening Cheng
- Zhundong Energy Research Institute, Xinjiang Tianchi Energy Co., Ltd., Changji 831100, China
| | - Mengmeng Zhang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yulong Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Rongtan Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jie Zhu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jianyang Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Kai Bian
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yi Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Fanshu Ding
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Thomas P Senftle
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Xiaowa Nie
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Qiang Fu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chunshan Song
- Department of Chemistry, Faculty of Science, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Xinwen Guo
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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5
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Yakovlev IV, Zaikovskii VI, Kazakova MA, Papulovskiy ES, Lapina OB, d'Espinose de Lacaillerie JB. Crystal plane dependent dispersion of cobalt metal on metastable aluminas. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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6
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Liu R, El Berch JN, House S, Meil SW, Mpourmpakis G, Porosoff MD. Reactive Separations of CO/CO 2 mixtures over Ru–Co Single Atom Alloys. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Renjie Liu
- Department of Chemical Engineering, University of Rochester, Rochester, New York14627, United States
| | - John N. El Berch
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania15261, United States
| | - Stephen House
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania15261, United States
- Environmental TEM Catalysis Consortium (ECC), University of Pittsburgh, Pittsburgh, Pennsylvania15261, United States
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico87123, United States
| | - Samuel W. Meil
- Department of Chemical Engineering, University of Rochester, Rochester, New York14627, United States
| | - Giannis Mpourmpakis
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania15261, United States
| | - Marc D. Porosoff
- Department of Chemical Engineering, University of Rochester, Rochester, New York14627, United States
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7
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Rytter E, Runningen A, Blekkan E, Hillestad M. The water assisted vinylene mechanism for cobalt Fischer-Tropsch synthesis assessed by multi-catalyst modelling of kinetics and deactivation. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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8
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Suo Y, Yao Y, Zhang Y, Xing S, Yuan ZY. Recent advances in cobalt-based Fischer-Tropsch synthesis catalysts. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.026] [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]
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9
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Dehghan-Niri R, Tsakoumis N, Voronov A, Holmen A, Holmestad R, Vullum PE, Borg Ø, Rytter E, Rønning M, Walmsley JC. Nanostructural Analysis of Co‐Re/γ‐Al2O3 Fischer‐Tropsch Catalyst by TEM and XRD. ChemCatChem 2022. [DOI: 10.1002/cctc.202101931] [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)
- Roya Dehghan-Niri
- Equinor Research Centre Geophysics Arkitekt Ebbells vei 10 7052 Trondheim NORWAY
| | - Nikolaos Tsakoumis
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Department of Chemical Engineering Høgskoleringen 1 7491 Trondheim NORWAY
| | - Alexey Voronov
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Department of Chemical Engineering Høgskoleringen 1 7491 Trondheim NORWAY
| | - Anders Holmen
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Chemical Engineering Høgskoleringen 1 7491 Trondheim NORWAY
| | - Randi Holmestad
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Physics Høgskoleringen 1 7491 Trondheim NORWAY
| | | | - Øyvind Borg
- Equinor Research Centre Research Centre Arkitekt Ebbells vei 107052Norway 7052 Trondheim NORWAY
| | - Erling Rytter
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Department of Chemical Engnineering 7491 NORWAY
| | - Magnus Rønning
- Norwegian University of Science and Technology: Norges teknisk-naturvitenskapelige universitet Department of Chemical Engineering Høgskoleringen 1 7491 Trondheim NORWAY
| | - John Charles Walmsley
- University of Cambridge Department of Materials Science and Metallurgy 27 Charles babbage Road CB30FS Cambridge UNITED KINGDOM
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10
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Kang J, Fan QY, Zhou W, Zhang Q, He S, Yue L, Tang Y, Nguyen L, Yu X, You Y, Chang H, Liu X, Chen L, Liu Y, Tao F, Cheng J, Wang Y. Iridium boosts the selectivity and stability of cobalt catalysts for syngas to liquid fuels. Chem 2022. [DOI: 10.1016/j.chempr.2021.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Jeon N, Oh J, Tayal A, Jeong B, Seo O, Kim S, Chung I, Yun Y. Effects of heat-treatment atmosphere and temperature on cobalt species in Co/Al2O3 catalyst for propane dehydrogenation. J Catal 2021. [DOI: 10.1016/j.jcat.2021.10.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Ma C, Yun Y, Zhang T, Suo H, Yan L, Shen X, Li Y, Yang Y. Insight into the Structural Evolution of the Cobalt Oxides Nanoparticles upon Reduction Process: An
In Situ
Transmission Electron Microscopy Study. ChemCatChem 2021. [DOI: 10.1002/cctc.202100983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chenwei Ma
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yifeng Yun
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
| | - Tianfu Zhang
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 PR China
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
| | - Haiyun Suo
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
| | - Lai Yan
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
| | - Xianfeng Shen
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yongwang Li
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 PR China
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
| | - Yong Yang
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 PR China
- National Energy Center for Coal to Liquids Synfuels China Co., Ltd. Huairou District Beijing 101400 PR China
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13
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Straß‐Eifert A, Wal LI, Hernández Mejía C, Weber LJ, Yoshida H, Zečević J, Jong KP, Güttel R. Bifunctional Co‐based Catalysts for Fischer‐Tropsch Synthesis: Descriptors Affecting the Product Distribution. ChemCatChem 2021. [DOI: 10.1002/cctc.202100270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Angela Straß‐Eifert
- Institute of Chemical Engineering Ulm University 89069 Ulm Germany
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Lars I. Wal
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Carlos Hernández Mejía
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Lennart J. Weber
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Hideto Yoshida
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
- Department of Nanocharacterization for Nanostructures and Functions Nanoscience and Nanotechnology Center ISIR Osaka University Japan
| | - Jovana Zečević
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Krijn P. Jong
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Robert Güttel
- Institute of Chemical Engineering Ulm University 89069 Ulm Germany
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14
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Wolf M. Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane. RSC Adv 2021; 11:18187-18197. [PMID: 34046175 PMCID: PMC8132427 DOI: 10.1039/d1ra01856f] [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: 03/09/2021] [Accepted: 04/15/2021] [Indexed: 11/25/2022] Open
Abstract
The high reaction temperatures during steam and dry reforming of methane inevitably entail catalyst deactivation. Evaluation of the feasibility or potentially relevant mechanisms at play is of utmost importance to develop highly active and stable catalysts. Herein, various oxidation reactions of bulk-sized nickel and cobalt to the corresponding metal oxide or in the presence of a metal oxide carrier are evaluated thermodynamically and linked to approximated conditions during methane reforming. In particular cobalt aluminate, as well as cobalt or nickel titanates are likely to form. As oxidation to bulk-sized metal oxide is unlikely, a thermodynamic analysis of metallic nanoparticles was performed to calculate the size dependent stability against oxidation to nickel oxide or cobalt oxide in water and carbon dioxide-rich environments. The calculations indicate that nickel nanoparticles >3 nm and cobalt nanoparticles >10 nm are expected to withstand oxidation during steam and dry reforming of methane with stoichiometric feed compositions and methane conversion levels >10% at temperatures up to 1100 and 900 °C, respectively. Lastly, the reduced thermal stability of nanoparticles due to melting point suppression was assessed, leading to similar recommendations concerning minimum particle sizes.
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Affiliation(s)
- Moritz Wolf
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH Egerlandstraße 3 91058 Erlangen Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Lehrstuhl für Chemische Reaktionstechnik (CRT) Egerlandstr. 3 91058 Erlangen Germany
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15
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Chizallet C, Schlaup C, Fonda E, Carrier X. Surface orientation dependent interaction of cobalt (II) precursors with alpha-alumina. J Catal 2021. [DOI: 10.1016/j.jcat.2020.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Han Z, Tang C, Wang J, Li L, Li C. Atomically dispersed Ptn+ species as highly active sites in Pt/In2O3 catalysts for methanol synthesis from CO2 hydrogenation. J Catal 2021. [DOI: 10.1016/j.jcat.2020.06.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Meng G, Sun J, Tao L, Ji K, Wang P, Wang Y, Sun X, Cui T, Du S, Chen J, Wang D, Li Y. Ru1Con Single-Atom Alloy for Enhancing Fischer–Tropsch Synthesis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04162] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ge Meng
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jiaqiang Sun
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Tao
- Institute of Physics & University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China
| | - Kaiyue Ji
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Pengfei Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Yu Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xiaohui Sun
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Tingting Cui
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shixuan Du
- Institute of Physics & University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Jiangang Chen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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18
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Straß‐Eifert A, Sheppard TL, Damsgaard CD, Grunwaldt J, Güttel R. Stability of Cobalt Particles In and Outside HZSM‐5 under CO Hydrogenation Conditions Studied by
ex situ
and
in situ
Electron Microscopy. ChemCatChem 2021. [DOI: 10.1002/cctc.202001533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Angela Straß‐Eifert
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Thomas L. Sheppard
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology Engesserstr. 20 76131 Karlsruhe Germany
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Christian D. Damsgaard
- DTU Nanolab and DTU Physics Technical University of Denmark Fysikvej – Building 307 2800 Kongens Lyngby Denmark
| | - Jan‐Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology Engesserstr. 20 76131 Karlsruhe Germany
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Robert Güttel
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
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19
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Gonçalves AAS, Ciesielczyk F, Samojeden B, Jaroniec M. Toward development of single-atom ceramic catalysts for selective catalytic reduction of NO with NH 3. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123413. [PMID: 32763703 DOI: 10.1016/j.jhazmat.2020.123413] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/21/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
Insertion of transition metal species into crystalline alumina at low temperatures is proposed to achieve the dispersion of these species at atomic level paired with exceptional textural properties. Precisely, MeAl2O4/γ-Al2O3 (Me = Mn, Fe, Co, Ni, and/or Cu) nanostructured ceramic catalysts were fabricated with ultra large mesopores (16-30 nm), and high specific surface area (180-290 m2 g-1) and pore volume (1.1-1.6 cm3 g-1). These ceramics were applied as efficient catalysts for the selective catalytic reduction (SCR) of NO with NH3, and their selectivity was discussed in terms of N2O formation, an undesirable byproduct. The catalysts containing Fe, Cu, or Mn showed the highest activities, however, within different temperature ranges. Further tuning of the catalytic activity and selectivity was achieved by creating ceramic catalysts with mixed compositions, e.g., CuFe and MnFe. Upon insertion of the transition metal species into crystalline structure of alumina to maximize atom efficiency, the N2O formation profile did not change significantly for all metal aluminates except MnAl2O4, indicating that these catalysts are suitable for SCR and selectively promote the reduction of NO.
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Affiliation(s)
- Alexandre A S Gonçalves
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, United States
| | - Filip Ciesielczyk
- Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, PL-60965 Poznan, Poland
| | - Bogdan Samojeden
- Faculty of Energy and Fuels, AGH University of Science and Technology, PL-30059 Krakow, Poland
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, United States.
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20
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21
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Qiu C, Odarchenko Y, Meng Q, Cong P, Schoen MAW, Kleibert A, Forrest T, Beale AM. Direct observation of the evolving metal-support interaction of individual cobalt nanoparticles at the titania and silica interface. Chem Sci 2020; 11:13060-13070. [PMID: 34123242 PMCID: PMC8163327 DOI: 10.1039/d0sc03113e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Understanding the metal–support interaction (MSI) is crucial to comprehend how the catalyst support affects performance and whether this interaction can be exploited in order to design new catalysts with enhanced properties. Spatially resolved soft X-ray absorption spectroscopy (XAS) in combination with Atomic Force Microscopy (AFM) and Scanning Helium Ion-Milling Microscopy (SHIM) has been applied to visualise and characterise the behaviour of individual cobalt nanoparticles (CoNPs) supported on two-dimensional substrates (SiOxSi(100) (x < 2) and rutile TiO2(110)) after undergoing reduction–oxidation–reduction (ROR). The behaviour of the Co species is observed to be strongly dependent on the type of support. For SiOxSi a weaker MSI between Co and the support allows a complete reduction of CoNPs although they migrate and agglomerate. In contrast, a stronger MSI of CoNPs on TiO2 leads to only a partial reduction under H2 at 773 K (as observed from Co L3-edge XAS data) due to enhanced TiO2 binding of surface-exposed cobalt. SHIM data revealed that the interaction of the CoNPs is so strong on TiO2, that they are seen to spread at and below the surface and even to migrate up to ∼40 nm away. These results allow us to better understand deactivation phenomena and additionally demonstrate a new understanding concerning the nature of the MSI for Co/TiO2 and suggest that there is scope for careful control of the post-synthetic thermal treatment for the tuning of this interaction and ultimately the catalytic performance. Understanding the metal–support interaction (MSI) is crucial to comprehend how the catalyst support affects performance and whether this interaction can be exploited in order to design new catalysts with enhanced properties.![]()
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Affiliation(s)
- Chengwu Qiu
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Yaroslav Odarchenko
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Qingwei Meng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Peixi Cong
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Martin A W Schoen
- Swiss Light Source, Paul Scherrer Institute Villigen 5232 Switzerland
| | - Armin Kleibert
- Swiss Light Source, Paul Scherrer Institute Villigen 5232 Switzerland
| | - Thomas Forrest
- Diamond Light Source Harwell Didcot Oxfordshire OX11 0DE UK
| | - Andrew M Beale
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
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22
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Nyathi TM, Fischer N, York APE, Claeys M. Environment-Dependent Catalytic Performance and Phase Stability of Co 3O 4 in the Preferential Oxidation of Carbon Monoxide Studied In Situ. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02653] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thulani M. Nyathi
- Catalysis Institute and c*change (DSI-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
| | - Nico Fischer
- Catalysis Institute and c*change (DSI-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
| | - Andrew P. E. York
- Johnson Matthey Technology Centre, Sonning Common, Reading RG4 9NH, U.K
| | - Michael Claeys
- Catalysis Institute and c*change (DSI-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
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23
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Wang B, Han Y, Chen S, Zhang Y, Li J, Hong J. Construction of three-dimensional nitrogen-doped graphene aerogel (NGA) supported cobalt catalysts for Fischer-Tropsch synthesis. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Shi J, Chen Y, Liu T, Liang H. Preparation of mesoporous γ-Al 2O 3 catalysts by dual template method. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1626246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jianling Shi
- Heilongjiang Provincial Key Laboratory of Oil and Gas, Northeast Petroleum University , Daqing , China
| | - Ying Chen
- Heilongjiang Provincial Key Laboratory of Oil and Gas, Northeast Petroleum University , Daqing , China
| | - Tiancong Liu
- Heilongjiang Provincial Key Laboratory of Oil and Gas, Northeast Petroleum University , Daqing , China
| | - Hongbao Liang
- College of Mechanical Science and Engineering, Northeast Petroleum University , Daqing , China
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25
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Zacharaki E, Bremmer GM, Vajeeston P, Kalyva M, Fjellvåg H, Kooyman PJ, Sjåstad AO. One-pot synthesis of cobalt-rhenium nanoparticles taking the unusual β-Mn type structure. NANOSCALE ADVANCES 2020; 2:1850-1853. [PMID: 36132513 PMCID: PMC9417266 DOI: 10.1039/d0na00097c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/06/2020] [Indexed: 06/15/2023]
Abstract
Using a facile one-pot colloidal method, it is now possible to obtain monodisperse Co1-x Re x nanoparticles (NPs), with excellent control of Re stoichiometry for x < 0.15. Re-incorporation in terms of a solid solution stabilizes the β-Mn polymorph relative to the hcp/ccp variants of cobalt. The NPs are thermally stable up to 300 °C, which may make them attractive as model catalysts.
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Affiliation(s)
- Eirini Zacharaki
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P. O. Box 1033 N-0315 Oslo Norway
| | - G Marien Bremmer
- Leiden Institute of Physics, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands
| | - Ponniah Vajeeston
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P. O. Box 1033 N-0315 Oslo Norway
| | - Maria Kalyva
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P. O. Box 1033 N-0315 Oslo Norway
| | - Helmer Fjellvåg
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P. O. Box 1033 N-0315 Oslo Norway
| | - Patricia J Kooyman
- Department of Chemical Engineering, University of Cape Town Private Bag X3 7701 Rondebosch South Africa
| | - Anja O Sjåstad
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P. O. Box 1033 N-0315 Oslo Norway
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26
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Rahmati M, Safdari MS, Fletcher TH, Argyle MD, Bartholomew CH. Chemical and Thermal Sintering of Supported Metals with Emphasis on Cobalt Catalysts During Fischer–Tropsch Synthesis. Chem Rev 2020; 120:4455-4533. [DOI: 10.1021/acs.chemrev.9b00417] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mahmood Rahmati
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, United States
| | - Mohammad-Saeed Safdari
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, United States
| | | | - Morris D. Argyle
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, United States
| | - Calvin H. Bartholomew
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, United States
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27
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Liuzzi D, Fernandez E, Perez S, Ipiñazar E, Arteche A, Fierro JLG, Viviente JL, Pacheco Tanaka DA, Rojas S. Advances in membranes and membrane reactors for the Fischer-Tropsch synthesis process for biofuel production. REV CHEM ENG 2020. [DOI: 10.1515/revce-2019-0067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The biomass-to-liquid (BtL) process is a promising technology to obtain clean, liquid, second-generation biofuels and chemicals. The BtL process, which comprises several steps, is based upon the gasification of biomass and the catalytic transformation of the syngas that is obtained via the Fischer-Tropsch synthesis (FTS) reaction, producing a hydrocarbon pool known as syncrude. The FTS process is a well-established technology, and there are currently very large FTS plants operating worldwide that produce liquid fuels and hydrocarbons from natural gas (NG) (gas-to-liquids, GtL process) and coal (coal-to-liquids, CtL process). Due to the limited availability of local biomass, the size of the BtL plants should be downscaled compared to that of a GtL or CtL plant. Since the feasibility of the XtL (X refers to any energy source that can be converted to liquid, including coal, NG, biomass, municipal solid waste, etc.) processes is strongly influenced by the economies of scale, the viability of small-scale BtL plants can be compromised. An interesting approach to overcome this issue is to increase the productivity of the FTS process by developing reactors and catalysts with higher productivities to generate the desired product fraction. Recently, by integrating membrane reactors with the FTS process the gas feeding and separation unit have been demonstrated in a single reactor. In this review, the most significant achievements in the field of catalytic membrane reactors for the FTS process will be discussed. Different types of membranes and configurations of membrane reactors, including H2O separation and H2-feed distribution, among others, will be analyzed.
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Affiliation(s)
- Dalia Liuzzi
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
| | - Ekain Fernandez
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Susana Perez
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Leonardo da Vinci 11 , 01510 Miñano , Spain
| | - Enrique Ipiñazar
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Amaya Arteche
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - José Luís G. Fierro
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
| | - Jose Luis Viviente
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - David Alfredo Pacheco Tanaka
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Sergio Rojas
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
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28
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Wolf M, Gibson EK, Olivier EJ, Neethling JH, Catlow CRA, Fischer N, Claeys M. In-depth characterisation of metal-support compounds in spent Co/SiO2 Fischer-Tropsch model catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.01.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Fang X, Liu B, Cao K, Yang P, Zhao Q, Jiang F, Xu Y, Chen R, Liu X. Particle-Size-Dependent Methane Selectivity Evolution in Cobalt-Based Fischer–Tropsch Synthesis. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05371] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xuejin Fang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Kun Cao
- State Key Laboratory of Digital Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, 430074 Wuhan, Hubei, P. R. China
| | - Pengju Yang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Qi Zhao
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Feng Jiang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Yuebing Xu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
| | - Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, 430074 Wuhan, Hubei, P. R. China
| | - Xiaohao Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P. R. China
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30
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Loewert M, Serrer MA, Carambia T, Stehle M, Zimina A, Kalz KF, Lichtenberg H, Saraçi E, Pfeifer P, Grunwaldt JD. Bridging the gap between industry and synchrotron: an operando study at 30 bar over 300 h during Fischer–Tropsch synthesis. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00493a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Long-term operando spectroscopic study of a Fischer–Tropsch catalyst at a synchrotron radiation facility under realistic conditions with full product analysis.
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Affiliation(s)
- M. Loewert
- Institute for Micro Process Engineering (IMVT)
- Germany
| | - M.-A. Serrer
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - T. Carambia
- Institute for Micro Process Engineering (IMVT)
- Germany
| | - M. Stehle
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - A. Zimina
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - K. F. Kalz
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - H. Lichtenberg
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - E. Saraçi
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - P. Pfeifer
- Institute for Micro Process Engineering (IMVT)
- Germany
| | - J.-D. Grunwaldt
- Institute of Catalysis Research and Technology (IKFT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- Germany
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31
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Li Z, Ji S, Liu Y, Cao X, Tian S, Chen Y, Niu Z, Li Y. Well-Defined Materials for Heterogeneous Catalysis: From Nanoparticles to Isolated Single-Atom Sites. Chem Rev 2019; 120:623-682. [PMID: 31868347 DOI: 10.1021/acs.chemrev.9b00311] [Citation(s) in RCA: 448] [Impact Index Per Article: 89.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The use of well-defined materials in heterogeneous catalysis will open up numerous new opportunities for the development of advanced catalysts to address the global challenges in energy and the environment. This review surveys the roles of nanoparticles and isolated single atom sites in catalytic reactions. In the second section, the effects of size, shape, and metal-support interactions are discussed for nanostructured catalysts. Case studies are summarized to illustrate the dynamics of structure evolution of well-defined nanoparticles under certain reaction conditions. In the third section, we review the syntheses and catalytic applications of isolated single atomic sites anchored on different types of supports. In the final part, we conclude by highlighting the challenges and opportunities of well-defined materials for catalyst development and gaining a fundamental understanding of their active sites.
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Affiliation(s)
- Zhi Li
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Shufang Ji
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Yiwei Liu
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Xing Cao
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Shubo Tian
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Yuanjun Chen
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Zhiqiang Niu
- Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
| | - Yadong Li
- Department of Chemistry , Tsinghua University , Beijing 100084 , China
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32
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Guda AA, Guda SA, Lomachenko KA, Soldatov MA, Pankin IA, Soldatov AV, Braglia L, Bugaev AL, Martini A, Signorile M, Groppo E, Piovano A, Borfecchia E, Lamberti C. Quantitative structural determination of active sites from in situ and operando XANES spectra: From standard ab initio simulations to chemometric and machine learning approaches. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.10.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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33
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Timoshenko J, Frenkel AI. “Inverting” X-ray Absorption Spectra of Catalysts by Machine Learning in Search for Activity Descriptors. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03599] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Janis Timoshenko
- Department of Interface Science, Fritz-Haber-Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Anatoly I. Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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34
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Wolf M, Roberts SJ, Marquart W, Olivier EJ, Luchters NTJ, Gibson EK, Catlow CRA, Neethling JH, Fischer N, Claeys M. Synthesis, characterisation and water-gas shift activity of nano-particulate mixed-metal (Al, Ti) cobalt oxides. Dalton Trans 2019; 48:13858-13868. [PMID: 31483416 DOI: 10.1039/c9dt01634a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of mixed-metal cobalt oxides, representing potential metal-support compounds for cobalt-based catalysts, has been observed at high conversion levels in the Fischer-Tropsch synthesis over metal oxide-supported cobalt catalysts. An often observed increase in the carbon dioxide selectivity at Fischer-Tropsch conversion levels above 80% has been suggested to be associated to the formation of water-gas shift active oxidic cobalt species. Mixed-metal cobalt oxides, namely cobalt aluminate and cobalt titanate, were therefore synthesised and tested for potential catalytic activity in the water-gas shift reaction. We present a preparation route for amorphous mixed-metal oxides via thermal treatment of metal precursors in benzyl alcohol. Calcination of the as prepared nanoparticles results in highly crystalline phases. The nano-particulate mixed-metal cobalt oxides were thoroughly analysed by means of X-ray diffraction, Raman spectroscopy, temperature-programmed reduction, X-ray absorption near edge structure spectroscopy, extended X-ray absorption fine structure, and high-resolution scanning transmission electron microscopy. This complementary characterisation of the synthesised materials allows for a distinct identification of the phases and their properties. The cobalt aluminate prepared has a cobalt-rich composition (Co1+xAl2-xO4) with a homogeneous atomic distribution throughout the nano-particulate structures, while the perovskite-type cobalt titanate (CoTiO3) features cobalt-lean smaller particles associated with larger ones with an increased concentration of cobalt. The cobalt aluminate prepared showed no water-gas shift activity in the medium-shift temperature range, while the cobalt titanate sample catalysed the conversion of water and carbon monoxide to hydrogen and carbon dioxide after an extended activation period. However, this perovskite underwent vast restructuring forming metallic cobalt, a known catalyst for the water-gas shift reaction at temperatures exceeding typical conditions for the cobalt-based Fischer-Tropsch synthesis, and anatase-TiO2. The partial reduction of the mixed-metal oxide and segregation was identified by means of post-run characterisation using X-ray diffraction, Raman spectroscopy, and transmission electron microscopy energy-dispersive spectrometry.
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Affiliation(s)
- Moritz Wolf
- Catalysis Institute, Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa.
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35
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Wolf M, Fischer N, Claeys M. Preparation of isolated Co 3O 4 and fcc-Co crystallites in the nanometre range employing exfoliated graphite as novel support material. NANOSCALE ADVANCES 2019; 1:2910-2923. [PMID: 36133606 PMCID: PMC9417318 DOI: 10.1039/c9na00291j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/07/2019] [Indexed: 06/16/2023]
Abstract
The inert nature of graphitic samples allows for characterisation of rather isolated supported nanoparticles in model catalysts, as long as sufficiently large inter-particle distances are obtained. However, the low surface area of graphite and the little interaction with nanoparticles result in a challenging application of conventional preparation routes in practice. In the present study, a set of graphitic carbon materials was characterised in order to identify potential support materials for the preparation of model catalyst systems. Various sizes of well-defined Co3O4 nanoparticles were synthesised separately and supported onto exfoliated graphite powder, that is graphite after solvent-assisted exfoliation via ultrasonication resulting in thinner flakes with increased specific surface area. The stability of the supported nanoparticles during reduction to metallic cobalt in H2 was monitored in situ by means of X-ray diffraction and smaller crystallite sizes were found to be harder to reduce than their larger counterparts. A low cobalt loading of 1 wt% was required to avoid aggregates in the parent catalyst, and this allowed for the preparation of supported cobalt nanoparticles which were resistant to sintering at reduction temperatures below 370 °C. The developed model catalysts are ideally suited for sintering studies of isolated nano-sized cobalt particles as the graphitic support material does not provide distinct metal-support interaction. Furthermore, the differently sized cobaltous particles in the various model systems render possible studies on structural dependencies of activity, selectivity, and deactivation in cobalt oxide or cobalt catalysed reactions.
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Affiliation(s)
- Moritz Wolf
- Catalysis Institute, DST-NRF Centre of Excellence in Catalysis cchange, Department of Chemical Engineering, University of Cape Town Rondebosch 7701 South Africa
| | - Nico Fischer
- Catalysis Institute, DST-NRF Centre of Excellence in Catalysis cchange, Department of Chemical Engineering, University of Cape Town Rondebosch 7701 South Africa
| | - Michael Claeys
- Catalysis Institute, DST-NRF Centre of Excellence in Catalysis cchange, Department of Chemical Engineering, University of Cape Town Rondebosch 7701 South Africa
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36
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Nyathi TM, Fischer N, York APE, Morgan DJ, Hutchings GJ, Gibson EK, Wells PP, Catlow CRA, Claeys M. Impact of Nanoparticle-Support Interactions in Co 3O 4/Al 2O 3 Catalysts for the Preferential Oxidation of Carbon Monoxide. ACS Catal 2019; 9:7166-7178. [PMID: 32064146 PMCID: PMC7011734 DOI: 10.1021/acscatal.9b00685] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 06/24/2019] [Indexed: 11/28/2022]
Abstract
![]()
Different
supporting procedures were followed to alter the nanoparticle–support
interactions (NPSI) in two Co3O4/Al2O3 catalysts, prepared using the reverse micelle technique.
The catalysts were tested in the dry preferential oxidation of carbon
monoxide (CO-PrOx) while their phase stability was monitored using
four complementary in situ techniques, viz., magnet-based characterization,
PXRD, and combined XAS/DRIFTS, as well as quasi in situ XPS,
respectively. The catalyst with weak NPSI achieved higher CO2 yields and selectivities at temperatures below 225 °C compared
to the sample with strong NPSI. However, relatively high degrees of
reduction of Co3O4 to metallic Co were reached
between 250 and 350 °C for the same catalyst. The presence of
metallic Co led to the undesired formation of CH4, reaching
a yield of over 90% above 300 °C. The catalyst with strong NPSI
formed very low amounts of metallic Co (less than 1%) and CH4 (yield of up to 20%) even at 350 °C. When the temperature was
decreased from 350 to 50 °C under the reaction gas, both catalysts
were slightly reoxidized and gradually regained their CO oxidation
activity, while the formation of CH4 diminished. The present
study shows a strong relationship between catalyst performance (i.e.,
activity and selectivity) and phase stability, both of which are affected
by the strength of the NPSI. When using a metal oxide as the active
CO-PrOx catalyst, it is important for it to have significant reduction
resistance to avoid the formation of undesired products, e.g., CH4. However, the metal oxide should also be reducible (especially
on the surface) to allow for a complete conversion of CO to CO2 via the Mars–van Krevelen mechanism.
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Affiliation(s)
- Thulani M. Nyathi
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
| | - Nico Fischer
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
| | - Andrew P. E. York
- Johnson Matthey Technology Centre, Sonning Common, Reading, RG4 9NH United Kingdom
| | - David J. Morgan
- Cardiff Catalysis Institute, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Graham J. Hutchings
- Cardiff Catalysis Institute, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Emma K. Gibson
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon OX11 0FA, United Kingdom
| | - Peter P. Wells
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon OX11 0FA, United Kingdom
- School of Chemistry, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
- Harwell Science and Innovation Campus, Diamond Light Source Ltd., Chilton, Didcot OX11 0DE, United Kingdom
| | - C. Richard A. Catlow
- Cardiff Catalysis Institute, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon OX11 0FA, United Kingdom
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
| | - Michael Claeys
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
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37
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Wolf M, Fischer N, Claeys M. Capturing the interconnectivity of water-induced oxidation and sintering of cobalt nanoparticles during the Fischer-Tropsch synthesis in situ. J Catal 2019. [DOI: 10.1016/j.jcat.2019.04.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Rytter E, Borg Ø, Enger BC, Holmen A. α-alumina as catalyst support in Co Fischer-Tropsch synthesis and the effect of added water; encompassing transient effects. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Wolf M, Gibson EK, Olivier EJ, Neethling JH, Catlow CRA, Fischer N, Claeys M. Water-Induced Formation of Cobalt-Support Compounds under Simulated High Conversion Fischer–Tropsch Environment. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00160] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moritz Wolf
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - Emma K. Gibson
- UK Catalysis Hub, Research Complex at Harwell, RAL, Oxford OX11 0FA, United Kingdom
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - Ezra J. Olivier
- Centre for High Resolution Transmission Electron Microscopy, Physics Department, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa
| | - Jan H. Neethling
- Centre for High Resolution Transmission Electron Microscopy, Physics Department, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa
| | - C. Richard A. Catlow
- UK Catalysis Hub, Research Complex at Harwell, RAL, Oxford OX11 0FA, United Kingdom
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Nico Fischer
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - Michael Claeys
- Catalysis Institute and c*change (DST-NRF Centre of Excellence in Catalysis), Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
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40
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Margossian T, Larmier K, Allouche F, Chan KW, Copéret C. Metal(II) Formates (M = Fe, Co, Ni, and Cu) Stabilized by Tetramethylethylenediamine (tmeda): Convenient Molecular Precursors for the Synthesis of Supported Nanoparticles. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201800227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tigran Margossian
- Department of Chemistry and Applied BiosciencesETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich Switzerland
| | - Kim Larmier
- Department of Chemistry and Applied BiosciencesETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich Switzerland
| | - Florian Allouche
- Department of Chemistry and Applied BiosciencesETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich Switzerland
| | - Ka Wing Chan
- Department of Chemistry and Applied BiosciencesETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied BiosciencesETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich Switzerland
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41
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Cobalt nanoparticles confined in carbon matrix for probing the size dependence in Fischer-Tropsch synthesis. J Catal 2019. [DOI: 10.1016/j.jcat.2018.11.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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42
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Tsakoumis NE, Patanou E, Lögdberg S, Johnsen RE, Myrstad R, van Beek W, Rytter E, Blekkan EA. Structure–Performance Relationships on Co-Based Fischer–Tropsch Synthesis Catalysts: The More Defect-Free, the Better. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03549] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nikolaos E. Tsakoumis
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Eleni Patanou
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Sara Lögdberg
- Chemical Technology, KTH (Royal Institute of Technology), Teknikringen 42, SE-100 44 Stockholm, Sweden
| | - Rune E. Johnsen
- Department of Energy Conversion and Storage, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Rune Myrstad
- SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
| | - Wouter van Beek
- The Swiss−Norwegian Beamlines (SNBL) at ESRF, Grenoble F38043, France
| | - Erling Rytter
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
- SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
| | - Edd A. Blekkan
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
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43
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van Deelen TW, Nijhuis JJ, Krans NA, Zečević J, de Jong KP. Preparation of Cobalt Nanocrystals Supported on Metal Oxides To Study Particle Growth in Fischer-Tropsch Catalysts. ACS Catal 2018; 8:10581-10589. [PMID: 30416841 PMCID: PMC6219851 DOI: 10.1021/acscatal.8b03094] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/25/2018] [Indexed: 11/29/2022]
Abstract
Colloidal synthesis of nanocrystals (NC) followed by their attachment to a support and activation is a promising route to prepare model catalysts for research on structure-performance relationships. Here, we investigated the suitability of this method to prepare well-defined Co/TiO2 and Co/SiO2 catalysts for the Fischer-Tropsch (FT) synthesis with high control over the cobalt particle size. To this end, Co-NC of 3, 6, 9, and 12 nm with narrow size distributions were synthesized and attached uniformly on either TiO2 or SiO2 supports with comparable morphology and Co loadings of 2-10 wt %. After activation in H2, the FT activity of the TiO2-supported 6 and 12 nm Co-NC was similar to that of a Co/TiO2 catalyst prepared by impregnation, showing that full activation was achieved and relevant catalysts had been obtained; however, 3 nm Co-NC on TiO2 were less active than anticipated. Analysis after FT revealed that all Co-NC on TiO2 as well as 3 nm Co-NC on SiO2 had grown to ∼13 nm, while the sizes of the 6 and 9 nm Co-NC on SiO2 had remained stable. It was found that the 3 nm Co-NC on TiO2 already grew to 10 nm during activation in H2. Furthermore, substantial amounts of Co (up to 60%) migrated from the Co-NC to the support during activation on TiO2 against only 15% on SiO2. We showed that the stronger interaction between cobalt and TiO2 leads to enhanced catalyst restructuring as compared to SiO2. These findings demonstrate the potential of the NC-based method to produce relevant model catalysts to investigate phenomena that could not be studied using conventionally synthesized catalysts.
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Affiliation(s)
- Tom W. van Deelen
- Inorganic Chemistry
and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Jelle J. Nijhuis
- Inorganic Chemistry
and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Nynke A. Krans
- Inorganic Chemistry
and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Jovana Zečević
- Inorganic Chemistry
and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Krijn P. de Jong
- Inorganic Chemistry
and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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44
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Yan F, Jiang J, Liu N, Gao Y, Meng Y, Li K, Chen X. Green synthesis of mesoporous γ-Al 2O 3 from coal fly ash with simultaneous on-site utilization of CO 2. JOURNAL OF HAZARDOUS MATERIALS 2018; 359:535-543. [PMID: 30092539 DOI: 10.1016/j.jhazmat.2018.07.104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/12/2017] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
Mesoporous Al2O3 with crystalline framework walls has expanded all over the world due to the various potential applications especially in catalysis. Here, we develop a green and facile approach for the conversion of coal fly ash (CFA) into ordered mesoporous γ-Al2O3. The practical and promising lime-sinter method was comprehensively studied for the extraction of aluminum from CFA as a first step. The extraction efficiency of aluminum could reach up to 87.42%, through calcining with CaCO3 at 1390°C for 1 h and then dissolving in Na2CO3 solution at 70°C for 0.5 h. Combined with the urgent demand for CO2 emission reduction, simulated purified flue gas was introduced to precipitate the Al(OH)3 precursors without structure-directing agents for just 1 h, followed by calcining at only 400°C or 550°C. A series of characterizations were conducted to discuss the effect of precipitation temperature and calcination temperature, resulting the superior product (Al2O3-65/550) with high surface area (230.3 m2 g-1), crystalline γ-Al2O3 phase and ordered mesostructure. This proposed strategy, integrating the on-site recycling of CFA and utilization of CO2, appears to be promising for scalable production of mesoporous γ-Al2O3.
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Affiliation(s)
- Feng Yan
- School of Environment, Tsinghua University, Beijing 100084, China; School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jianguo Jiang
- School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education, Beijing 100084, China; Collaborative Innovation Center for Regional Environmental Quality, Tsinghua University, Beijing 100084, China.
| | - Nuo Liu
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yuchen Gao
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yuan Meng
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Kaimin Li
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Xuejing Chen
- School of Environment, Tsinghua University, Beijing 100084, China
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45
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Rytter E, Borg Ø, Tsakoumis NE, Holmen A. Water as key to activity and selectivity in Co Fischer-Tropsch synthesis: γ-alumina based structure-performance relationships. J Catal 2018. [DOI: 10.1016/j.jcat.2018.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Surface Science Approach to the Molecular Level Integration of the Principles in Heterogeneous, Homogeneous, and Enzymatic Catalysis. Top Catal 2018. [DOI: 10.1007/s11244-018-0975-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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47
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Abstract
Electrolysis of water is key technology, not only for clean energy production, but to ensure a continued supply of hydrogen beyond fossil resources, essential to the manufacture of many chemical goods other than fuels. Cobalt nanomaterials have been widely identified as a promising candidate for the anode (oxygen evolution) reaction in this process, but much work has focused on applied materials or electrode design. Given the importance of oxidation state changes Co(III) → Co(IV) in the accepted reaction mechanism, in this work we look at size effects in small (4–10 nm) cobalt nanoparticles, where the ease of oxidation for lower cobalt oxidation states is known to change with particle size. To discriminate between geometric and chemical effects we have compared the catalysts in this study to others in the literature by turnover frequency (widely used in other areas of catalysis), in addition to the more commonly employed performance metric of the overpotential required to produce a current density of 10 mA cm−2. Comparisons are drawn to key examples of using well defined nanomaterials (where the surface are of cobalt sites can be estimated). This has enabled an estimated intrinsic turnover rate of ~ 1 O2 molecule per surface Co atom per second at an overpotential of 500 mV in the oxygen evolution reaction under typical alkaline reaction conditions (pH 14.0) to be identified.
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Affiliation(s)
- Edward Locke
- Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE UK
| | - Shan Jiang
- Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE UK
| | - Simon K Beaumont
- Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE UK
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48
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Wolf M, Mutuma BK, Coville NJ, Fischer N, Claeys M. Role of CO in the Water-Induced Formation of Cobalt Oxide in a High Conversion Fischer–Tropsch Environment. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04177] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Moritz Wolf
- Catalysis Institute, Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
- DST-NRF Centre of Excellence in Catalysis c*change, Rondebosch 7701, South Africa
| | - Bridget K. Mutuma
- DST-NRF Centre of Excellence in Strong Materials and the Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Wits 2050, South Africa
| | - Neil J. Coville
- DST-NRF Centre of Excellence in Catalysis c*change, Rondebosch 7701, South Africa
- DST-NRF Centre of Excellence in Strong Materials and the Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Wits 2050, South Africa
| | - Nico Fischer
- Catalysis Institute, Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
- DST-NRF Centre of Excellence in Catalysis c*change, Rondebosch 7701, South Africa
| | - Michael Claeys
- Catalysis Institute, Department of Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa
- DST-NRF Centre of Excellence in Catalysis c*change, Rondebosch 7701, South Africa
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49
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Burgess KMN, Widdifield CM, Xu Y, Leroy C, Bryce DL. Structural Insights from 59 Co Solid-State NMR Experiments on Organocobalt(I) Catalysts. Chemphyschem 2018; 19:227-236. [PMID: 29120533 DOI: 10.1002/cphc.201700990] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/08/2017] [Indexed: 11/07/2022]
Abstract
A series of fumarate-based organocobalt(I) [CoCp(CO)(fumarate)] catalysts is synthesized and characterized by X-ray crystallography, multinuclear (13 C and 59 Co) solid-state NMR spectroscopy, and 59 Co NQR spectroscopy. Given the dearth of 59 Co solid-state NMR studies on CoI compounds, the present work constitutes the first systematic characterization of the 59 Co electric field gradient and chemical shift tensors for a series of cobalt complexes in this oxidation state. Using X-ray crystallography, the molecular geometry about the CoI centre is found to be nearly identical in all compounds studied herein. Owing to the 59 Co nucleus' large chemical shift range, solid-state NMR experiments are found to be able to detect small structural differences between the individual organocobalt(I) compounds. With the aid of density functional theory calculations on these complexes, it is shown that the 59 Co chemical shift anisotropy and the 59 Co quadrupolar coupling constant are both extremely sensitive gauges of the Fu-Co-Cp bond angle, providing a link between these 59 Co NMR observables and the catalysts' structures.
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Affiliation(s)
- Kevin M N Burgess
- Department of Chemistry and Biomolecular Sciences, & Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
- Current address: St. Peter's Seminary, University of Western Ontario, 1040 Waterloo St., London, ON, N6A 3Y1, Canada
| | - Cory M Widdifield
- Department of Chemistry and Biomolecular Sciences, & Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
- Current address: Oakland University, Department of Chemistry, Mathematics and Science Center, 146 Library Drive, Rochester, MI, 48309-4479, USA
| | - Yang Xu
- Department of Chemistry and Biomolecular Sciences, & Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
| | - César Leroy
- Department of Chemistry and Biomolecular Sciences, & Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences, & Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
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50
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Chen G, Gao R, Zhao Y, Li Z, Waterhouse GIN, Shi R, Zhao J, Zhang M, Shang L, Sheng G, Zhang X, Wen X, Wu LZ, Tung CH, Zhang T. Alumina-Supported CoFe Alloy Catalysts Derived from Layered-Double-Hydroxide Nanosheets for Efficient Photothermal CO 2 Hydrogenation to Hydrocarbons. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30. [PMID: 29205526 DOI: 10.1002/adma.201704663] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/27/2017] [Indexed: 05/13/2023]
Abstract
A series of novel CoFe-based catalysts are successfully fabricated by hydrogen reduction of CoFeAl layered-double-hydroxide (LDH) nanosheets at 300-700 °C. The chemical composition and morphology of the reaction products (denoted herein as CoFe-x) are highly dependent on the reduction temperature (x). CO2 hydrogenation experiments are conducted on the CoFe-x catalysts under UV-vis excitation. With increasing LDH-nanosheet reduction temperature, the CoFe-x catalysts show a progressive selectivity shift from CO to CH4 , and eventually to high-value hydrocarbons (C2+ ). CoFe-650 shows remarkable selectivity toward hydrocarbons (60% CH4 , 35% C2+ ). X-ray absorption fine structure, high-resolution transmission electron microscopy, Mössbauer spectroscopy, and density functional theory calculations demonstrate that alumina-supported CoFe-alloy nanoparticles are responsible for the high selectivity of CoFe-650 for C2+ hydrocarbons, also allowing exploitation of photothermal effects. This study demonstrates a vibrant new catalyst platform for harnessing clean, abundant solar-energy to produce valuable chemicals and fuels from CO2 .
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Affiliation(s)
- Guangbo Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China
- Center for Advancing Electronics Dresden (Cfaed) & Department of Chemistry and Food Chemistry, Technische Universitaet Dresden, 01062, Dresden, Germany
| | - Rui Gao
- State key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
- Synfuels China, Beijing, 100195, P. R. China
| | - Yufei Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhenhua Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | | | - Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiaqing Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Mengtao Zhang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Lu Shang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Guiyang Sheng
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xiangping Zhang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xiaodong Wen
- State key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
- Synfuels China, Beijing, 100195, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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