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Tusini E, Casapu M, Zimina A, Doronkin DE, Störmer H, Barthe L, Belin S, Grunwaldt JD. Structural Changes of Ni and Ni-Pt Methane Steam Reforming Catalysts During Activation, Reaction, and Deactivation Under Dynamic Reaction Conditions. ACS Catal 2024; 14:7463-7477. [PMID: 38779186 PMCID: PMC11110164 DOI: 10.1021/acscatal.3c05847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/14/2024] [Accepted: 03/19/2024] [Indexed: 05/25/2024]
Abstract
Ni-based catalysts are the most widely used materials to produce H2 in large-scale methane steam reformers under stationary conditions. For domestic applications such as fuel cells, H2 production involves the exposure of the catalysts to more dynamic conditions due to the daily startup and shutdown operation mode, making Ni-based catalysts susceptible to oxidation and deactivation. In this context, we report a systematic investigation of the structural changes occurring for monometallic Ni/MgAlOx and bimetallic NiPt/MgAlOx catalysts during methane steam reforming under transient conditions, comprising catalyst activation, operation, and deactivation processes. Besides extensive catalytic tests, the samples prepared by incipient wetness impregnation were characterized by complementary methods, including N2-physisorption, X-ray diffraction, H2-temperature-programmed reduction, and electron microscopy. Next, the structure of the Ni and Pt species was monitored under reaction conditions using time and spatially resolved in situ/operando X-ray absorption spectroscopy. The results obtained show that before catalyst activation by H2-reduction, nickel diffuses into the support lattice and forms mixed oxides with magnesium. In the activated catalysts, Ni is present in the metallic state or alloyed with Pt. A clear beneficial effect of the noble metal addition was identified on both the activity and stability of the bimetallic NiPt/MgAlOx catalyst. In contrast, the pronounced oxidation and reincorporation of Ni into the support lattice were observed for the monometallic sample, and these catalyst deactivation effects are hindered in the bimetallic Ni-Pt catalyst. Overall, the outcome of our study not only helps in understanding the catalyst activation/deactivation processes at an atomic level but also provides the basis for the rational development of improved methane steam reforming catalysts.
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Affiliation(s)
- Enrico Tusini
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute
of Technology (KIT), Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Maria Casapu
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute
of Technology (KIT), Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Anna Zimina
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute
of Technology (KIT), Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe Institute of Technology
(KIT), Hermann-von-Helmholtz-Platz
1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Dmitry E. Doronkin
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute
of Technology (KIT), Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe Institute of Technology
(KIT), Hermann-von-Helmholtz-Platz
1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Heike Störmer
- Laboratory
for Electron Microscopy, Karlsruhe Institute
of Technology (KIT), Engesserstraße 7, 76131 Karlsruhe, Germany
| | - Laurent Barthe
- Synchrotron
SOLEIL, L’Orme des Merisiers BP48 Saint Aubin, 91192 Gif-sur Yvette, France
| | - Stephanie Belin
- Synchrotron
SOLEIL, L’Orme des Merisiers BP48 Saint Aubin, 91192 Gif-sur Yvette, France
| | - Jan-Dierk Grunwaldt
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute
of Technology (KIT), Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe Institute of Technology
(KIT), Hermann-von-Helmholtz-Platz
1, 76344 Eggenstein-Leopoldshafen, Germany
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2
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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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3
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Gäßler M, Stahl J, Schowalter M, Pokhrel S, Rosenauer A, Mädler L, Güttel R. The Impact of Support Material of Cobalt‐Based Catalysts Prepared by Double Flame Spray Pyrolysis on CO2 Methanation Dynamics. ChemCatChem 2022. [DOI: 10.1002/cctc.202200286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Max Gäßler
- Ulm University: Universitat Ulm Institute of Chemical Engineering GERMANY
| | - Jakob Stahl
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Marco Schowalter
- University of Bremen: Universitat Bremen Institute of Solid State Physics GERMANY
| | - Suman Pokhrel
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Andreas Rosenauer
- University of Bremen: Universitat Bremen Institute of Solid State Physics GERMANY
| | - Lutz Mädler
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Robert Güttel
- Universitat Ulm Institute of Chemical Process Engineering Albert-Einstein-Allee 11 89081 Ulm GERMANY
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4
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Stahl J, Ilsemann J, Pokhrel S, Schowalter M, Tessarek C, Rosenauer A, Eickhoff M, Bäumer M, Mädler L. Comparing Co‐catalytic Effects of ZrO
x
, SmO
x
, and Pt on CO
x
Methanation over Co‐based Catalysts Prepared by Double Flame Spray Pyrolysis. ChemCatChem 2021. [DOI: 10.1002/cctc.202001998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jakob Stahl
- Faculty of Production Engineering University of Bremen Badgasteiner Straße 1 28359 Bremen Germany
| | - Jan Ilsemann
- Institute of Applied and Physical Chemistry and Center for Environmental Research (UFT) University of Bremen Leobener Straße 6 28359 Bremen Germany
| | - Suman Pokhrel
- Faculty of Production Engineering University of Bremen Badgasteiner Straße 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Straße 3 28359 Bremen Germany
| | - Marco Schowalter
- Institute of Solid State Physics University of Bremen Otto-Hahn-Allee 1 28359 Bremen Germany
| | - Christian Tessarek
- Institute of Solid State Physics University of Bremen Otto-Hahn-Allee 1 28359 Bremen Germany
| | - Andreas Rosenauer
- Institute of Solid State Physics University of Bremen Otto-Hahn-Allee 1 28359 Bremen Germany
- MAPEX Center for Materials and Processes University of Bremen Postfach 330 440 Germany
| | - Martin Eickhoff
- Institute of Solid State Physics University of Bremen Otto-Hahn-Allee 1 28359 Bremen Germany
- MAPEX Center for Materials and Processes University of Bremen Postfach 330 440 Germany
| | - Marcus Bäumer
- Institute of Applied and Physical Chemistry and Center for Environmental Research (UFT) University of Bremen Leobener Straße 6 28359 Bremen Germany
- MAPEX Center for Materials and Processes University of Bremen Postfach 330 440 Germany
| | - Lutz Mädler
- Faculty of Production Engineering University of Bremen Badgasteiner Straße 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Straße 3 28359 Bremen Germany
- MAPEX Center for Materials and Processes University of Bremen Postfach 330 440 Germany
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8
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Liu Q, Gu F, Zhong Z, Xu G, Su F. Anti-sintering ZrO2-modified Ni/α-Al2O3 catalyst for CO methanation. RSC Adv 2016. [DOI: 10.1039/c5ra28057e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The ZrO2-modified Ni/α-Al2O3 catalysts prepared by a modified impregnation method show obvious enhancement of Ni anti-sintering because of the special distribution of ZrO2 nanoparticles on the surface of the catalyst.
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Affiliation(s)
- Qing Liu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Fangna Gu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Ziyi Zhong
- Institute of Chemical Engineering and Sciences
- Jurong Island 627833
- Singapore
| | - Guangwen Xu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Fabing Su
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
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9
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Koirala R, Pratsinis SE, Baiker A. Synthesis of catalytic materials in flames: opportunities and challenges. Chem Soc Rev 2016; 45:3053-68. [DOI: 10.1039/c5cs00011d] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this review we identify the crucial factors for the synthesis of catalytic materials by flame methods and examine their potential for controlling the chemical, physical and catalytic properties of as made catalysts.
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Affiliation(s)
- Rajesh Koirala
- Particle Technology Laboratory
- Department of Mechanical and Process Engineering
- ETH Zurich
- CH-8092 Zurich
- Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology Laboratory
- Department of Mechanical and Process Engineering
- ETH Zurich
- CH-8092 Zurich
- Switzerland
| | - Alfons Baiker
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- Hönggerberg
- HCI
- CH-8093 Zurich
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10
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Yang K, Zhang M, Yu Y. Direct versus hydrogen-assisted CO dissociation over stepped Ni and Ni3Fe surfaces: a computational investigation. Phys Chem Chem Phys 2015; 17:29616-27. [PMID: 26478478 DOI: 10.1039/c5cp04335b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption and dissociation of CO over stepped Ni and Ni3Fe surfaces were systematically studied using density functional theory slab calculations. Both (211)-like surface structure terminations (NiNi step and NiFe step, denoted as Ni3Fe(211)-AA and Ni3Fe(211)-AB) are considered for Ni3Fe. Direct scission of the C-O bond in CO is identified as the least likely one among the three proposed dissociation pathways and CO dissociation via a CHO intermediate appears to be most feasible at low CO coverage on pure and alloyed Ni(211) surfaces. The priority of H-assisted CO dissociation might originate from the more activated C-O bond in COH and CHO. Compared to Ni(211), the Ni3Fe(211)-AB surface could facilitate CO activation especially for the most possible CHO intermediate mechanism, whose rate-limiting step is found to be altered. The d-band center theory and Mulliken charge analysis are also employed to explain the activity difference between Ni3Fe(211)-AB and Ni3Fe(211)-AA. The significant structural sensitivity of CO dissociation highlights the importance of Fe locating in the step edge and the high reactivity of Ni3Fe(211)-AB is largely ascribed to the synergistic effect between Ni and Fe at the step edge.
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Affiliation(s)
- Kuiwei Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, P. R. China.
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11
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Liu Q, Gu F, Wang X, Jin G, Li H, Gao F, Zhong Z, Xu G, Su F. Facile synthesis of ordered mesoporous Ni–Zr–Al catalysts with high hydrothermal stability for CO methanation. RSC Adv 2015. [DOI: 10.1039/c5ra17255a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The ordered mesoporous Ni–Zr–Al catalyst exhibits high hydrothermal stability as well as high anti-coking and anti-sintering properties, due to the confinement effect of the mesopore channels and the incorporation of the ZrO2 species.
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Affiliation(s)
- Qing Liu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Fangna Gu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xiaoyan Wang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Guojing Jin
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Huifang Li
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Feng Gao
- Institute of Chemical Engineering and Sciences
- A*star
- Jurong Island 627833
- Singapore
| | - Ziyi Zhong
- Institute of Chemical Engineering and Sciences
- A*star
- Jurong Island 627833
- Singapore
| | - Guangwen Xu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Fabing Su
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
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