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Küst U, Wang W, Wang C, Hagelin-Weaver H, Gustafson J, Shavorskiy A, Weaver JF, Knudsen J. Temperature-Dependent Selectivity and Detection of Hidden Carbon Deposition in Methane Oxidation. ACS Catal 2024; 14:5978-5986. [PMID: 38660614 PMCID: PMC11036384 DOI: 10.1021/acscatal.4c00228] [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: 01/10/2024] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 04/26/2024]
Abstract
Reaction products in heterogeneous catalysis can be detected either on the catalyst surface or in the gas phase after desorption. However, if atoms are dissolved in the catalyst bulk, then reaction channels can become hidden. This is the case if the dissolution rate of the deposits is faster than their formation rate. This might lead to the underestimation or even overlooking of reaction channels such as, e.g., carbon deposition during hydrocarbon oxidation reactions, which is problematic as carbon can have a significant influence on the catalytic activity. Here, we demonstrate how such hidden deposition channels can be uncovered by carefully measuring the product formation rates in the local gas phase just above the catalyst surface with time-resolved ambient pressure X-ray photoelectron spectroscopy. As a case study, we investigate methane oxidation on a polycrystalline Pd catalyst in an oxygen-lean environment at a few millibar pressure. By ramping the temperature between 350 and 525 °C, we follow the time evolution of the different reaction pathways. Only in the oxygen mass-transfer limit do we observe CO production, while our data suggests that carbon deposition also happens outside this limit.
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Affiliation(s)
- Ulrike Küst
- Division
of Synchrotron Radiation Research, Lund
University, P.O. Box 118, SE-221 00 Lund, Sweden
- NanoLund, Lund University, P.O.
Box 118, SE-221 00 Lund, Sweden
| | - Weijia Wang
- MAX
IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - Changda Wang
- National
Synchrotron Radiation Laboratory, University
of Science and Technology of China, Hefei 230029, China
| | - Helena Hagelin-Weaver
- Department
of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Johan Gustafson
- Division
of Synchrotron Radiation Research, Lund
University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - Andrey Shavorskiy
- MAX
IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - Jason F. Weaver
- Department
of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Jan Knudsen
- Division
of Synchrotron Radiation Research, Lund
University, P.O. Box 118, SE-221 00 Lund, Sweden
- NanoLund, Lund University, P.O.
Box 118, SE-221 00 Lund, Sweden
- MAX
IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
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2
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Thum L, Arztmann M, Zizak I, Grüneberger R, Steigert A, Grimm N, Wallacher D, Schlatmann R, Amkreutz D, Gili A. In situ cell for grazing-incidence x-ray diffraction on thin films in thermal catalysis. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2024; 95:033904. [PMID: 38446003 DOI: 10.1063/5.0179989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/17/2024] [Indexed: 03/07/2024]
Abstract
A cell for synchrotron-based grazing-incidence x-ray diffraction at ambient pressures and moderate temperatures in a controlled gas atmosphere is presented. The cell is suited for the in situ study of thin film samples under catalytically relevant conditions. To some extent, in addition to diffraction, the cell can be simultaneously applied for x-ray reflectometry and fluorescence studies. Different domes enclosing the sample have been studied and selected to ensure minimum contribution to the diffraction patterns. The applicability of the cell is demonstrated using synchrotron radiation by monitoring structural changes of a 3 nm Pd thin film upon interaction with gas-phase hydrogen and during acetylene semihydrogenation at 150 °C. The cell allows investigation of very thin films under catalytically relevant conditions.
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Affiliation(s)
- Lukas Thum
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Manuela Arztmann
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Ivo Zizak
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - René Grüneberger
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Alexander Steigert
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Nico Grimm
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Dirk Wallacher
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Rutger Schlatmann
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
- HTW Berlin-University of Applied Sciences, 12459 Berlin, Germany
| | - Daniel Amkreutz
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Albert Gili
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
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3
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Bischoff B, Bekheet MF, Dal Molin E, Praetz S, Kanngießer B, Schomäcker R, Etter M, Jeppesen HS, Tayal A, Gurlo A, Gili A. In situ/operando plug-flow fixed-bed cell for synchrotron PXRD and XAFS investigations at high temperature, pressure, controlled gas atmosphere and ultra-fast heating. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:77-84. [PMID: 38010796 PMCID: PMC10833430 DOI: 10.1107/s1600577523009591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023]
Abstract
A plug-flow fixed-bed cell for synchrotron powder X-ray diffraction (PXRD) and X-ray absorption fine structure (XAFS) idoneous for the study of heterogeneous catalysts at high temperature, pressure and under gas flow is designed, constructed and demonstrated. The operating conditions up to 1000°C and 50 bar are ensured by a set of mass flow controllers, pressure regulators and two infra-red lamps that constitute a robust and ultra-fast heating and cooling method. The performance of the system and cell for carbon dioxide hydrogenation reactions under specified temperatures, gas flows and pressures is demonstrated both for PXRD and XAFS at the P02.1 (PXRD) and the P64 (XAFS) beamlines of the Deutsches Elektronen-Synchrotron (DESY).
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Affiliation(s)
- Benjamin Bischoff
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Maged F. Bekheet
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Emiliano Dal Molin
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Sebastian Praetz
- Technische Universität Berlin, Faculty III Process Sciences, Institute for Optic and Atomic Physics, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Birgit Kanngießer
- Technische Universität Berlin, Faculty III Process Sciences, Institute for Optic and Atomic Physics, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Reinhard Schomäcker
- Technische Universität Berlin, Faculty II Mathematik und Naturwissenschaften, Institut für Chemie, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Martin Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Henrik S. Jeppesen
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Akhil Tayal
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Aleksander Gurlo
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Albert Gili
- Technische Universität Berlin, Faculty II Mathematik und Naturwissenschaften, Institut für Chemie, Straße des 17 Juni 135, 10623 Berlin, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
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4
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Xue Q, Li Z, Yan B, Wang Y, Luo G. Inhibition of sintering and coking by post-coating group IIA metal oxides on trace-Rh-promoted Ni-based catalysts for high-temperature steam reforming. J Catal 2023. [DOI: 10.1016/j.jcat.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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5
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Haug L, Thurner C, Bekheet MF, Bischoff B, Gurlo A, Kunz M, Sartory B, Penner S, Klötzer B. Zirconium Carbide Mediates Coke‐Resistant Methane Dry Reforming on Nickel‐Zirconium Catalysts. Angew Chem Int Ed Engl 2022; 61:e202213249. [PMID: 36379010 PMCID: PMC10100075 DOI: 10.1002/anie.202213249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Indexed: 11/16/2022]
Abstract
Graphitic deposits anti-segregate into Ni0 nanoparticles to provide restored CH4 adsorption sites and near-surface/dissolved C atoms, which migrate to the Ni0 /ZrO2 interface and induce local Zrx Cy formation. The resulting oxygen-deficient carbidic phase boundary sites assist in the kinetically enhanced CO2 activation toward CO(g). This interface carbide mechanism allows for enhanced spillover of carbon to the ZrO2 support, and represents an alternative catalyst regeneration pathway with respect to the reverse oxygen spillover on Ni-CeZrx Oy catalysts. It is therefore rather likely on supports with limited oxygen storage/exchange kinetics but significant carbothermal reducibility.
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Affiliation(s)
- Leander Haug
- Institute of Physical Chemistry University of Innsbruck Innrain 52 c 6020 Innsbruck Austria
| | - Christoph Thurner
- Institute of Physical Chemistry University of Innsbruck Innrain 52 c 6020 Innsbruck Austria
| | - Maged F. Bekheet
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Germany
| | - Benjamin Bischoff
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Germany
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Germany
| | - Martin Kunz
- Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Bernhard Sartory
- Materials Center Leoben Forschung GmbH Roseggerstrasse 12 8700 Leoben Austria
| | - Simon Penner
- Institute of Physical Chemistry University of Innsbruck Innrain 52 c 6020 Innsbruck Austria
| | - Bernhard Klötzer
- Institute of Physical Chemistry University of Innsbruck Innrain 52 c 6020 Innsbruck Austria
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6
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Haug L, Thurner C, Bekheet MF, Bischoff B, Gurlo A, Kunz M, Sartory B, Penner S, Klötzer B. Zirkonkarbid ermöglicht verkokungsresistente Methan‐Trockenreformierung auf Nickel‐Zirkon‐Katalysatoren. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202213249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Leander Haug
- Institut für Physikalische Chemie Universität Innsbruck Innrain 52 c 6020 Innsbruck Österreich
| | - Christoph Thurner
- Institut für Physikalische Chemie Universität Innsbruck Innrain 52 c 6020 Innsbruck Österreich
| | - Maged F. Bekheet
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Benjamin Bischoff
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe Institut für Werkstoffwissenschaften und -technologien Technische Universität Berlin, Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Martin Kunz
- Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Bernhard Sartory
- Materials Center Leoben Forschung GmbH Roseggerstrasse 12 8700 Leoben Österreich
| | - Simon Penner
- Institut für Physikalische Chemie Universität Innsbruck Innrain 52 c 6020 Innsbruck Österreich
| | - Bernhard Klötzer
- Institut für Physikalische Chemie Universität Innsbruck Innrain 52 c 6020 Innsbruck Österreich
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7
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Zhang X, Deng J, Lan T, Shen Y, Zhong Q, Ren W, Zhang D. Promoting Methane Dry Reforming over Ni Catalysts via Modulating Surface Electronic Structures of BN Supports by Doping Carbon. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04800] [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)
- Xiaoyu Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Jiang Deng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Tianwei Lan
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Yongjie Shen
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Qingdong Zhong
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Wei Ren
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
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8
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CO-promoted low-temperature conversion of CH4 to hydrogen and carbon nanotubes on Nanocrystalline Cr-doped ferrite catalyst. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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9
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Nguyen ET, Bertini IA, Ritz AJ, Lazenby RA, Mao K, McBride JR, Mattia AV, Kuszynski JE, Wenzel SF, Bennett SD, Strouse GF. A Single Source, Scalable Route for Direct Isolation of Earth-Abundant Nanometal Carbide Water-Splitting Electrocatalysts. Inorg Chem 2022; 61:13836-13845. [PMID: 36007248 DOI: 10.1021/acs.inorgchem.2c01713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-phase MxCs (M = Fe, Co, and Ni) were prepared by solvothermal conversion of Prussian blue single source precursors. The single source precursor is prepared in water, and the conversion process is carried out in alkylamines at reaction temperatures above 200 °C. The reaction is scalable using a commercial source of Fe-PB. High-resolution transmission electron microscopy, X-ray photoelectron microscopy, and powder X-ray diffraction confirm that carbides have thin oxide termination but lack graphitic surfaces. Electrocatalytic activity reveals that Fe3C and Co2C are oxygen evolution reaction electrocatalysts, while Ni3C is a bifunctional [OER and hydrogen evolution reaction (HER)] electrocatalyst.
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Affiliation(s)
- Edward T Nguyen
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Isabella A Bertini
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Amanda J Ritz
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Robert A Lazenby
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Keyou Mao
- Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - James R McBride
- Vanderbilt Institute of Nanoscale Science and Engineering, Nashville, Tennessee 37235, United States
| | - Alexzandra V Mattia
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Jason E Kuszynski
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Samuel F Wenzel
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Sarah D Bennett
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Geoffrey F Strouse
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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10
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Wang J, Grünbacher M, Penner S, Bekheet MF, Gurlo A. Porous Silicon Oxycarbonitride Ceramics with Palladium and Pd2Si Nanoparticles for Dry Reforming of Methane. Polymers (Basel) 2022; 14:polym14173470. [PMID: 36080545 PMCID: PMC9460865 DOI: 10.3390/polym14173470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/01/2022] [Accepted: 08/19/2022] [Indexed: 01/08/2023] Open
Abstract
Pd-containing precursor has been synthesized from palladium acetate and poly(vinly)silazane (Durazane 1800) in an ice bath under an argon atmosphere. The results of ATR-FTIR and NMR characterizations reveal the chemical reaction between palladium acetate and vinyl groups in poly(vinyl)silazane and the hydrolyzation reaction between –Si–H and –Si–CH=CH2 groups in poly(vinyl)silazane. The palladium nanoparticles are in situ formed in the synthesized precursors as confirmed by XRD, XPS, and TEM. Pd- and Pd2Si-containing SiOCN ceramic nanocomposites are obtained by pyrolysis of the synthesized precursors at 700 °C, 900 °C–1100 °C in an argon atmosphere. The pyrolyzed nanocomposites display good catalytic activity towards the dry reforming of methane. The sample pyrolyzed at 700 °C possesses the best catalytic performance, which can be attributed to the in situ formed palladium nanoparticles and high BET surface area of about 233 m2 g−1.
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Affiliation(s)
- Jun Wang
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Matthias Grünbacher
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Simon Penner
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Maged F. Bekheet
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
- Correspondence:
| | - Aleksander Gurlo
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
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11
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Mineral-Supported Photocatalysts: A Review of Materials, Mechanisms and Environmental Applications. ENERGIES 2022. [DOI: 10.3390/en15155607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although they are of significant importance for environmental applications, the industrialization of photocatalytic techniques still faces many difficulties, and the most urgent concern is cost control. Natural minerals possess abundant chemical inertia and cost-efficiency, which is suitable for hybridizing with various effective photocatalysts. The use of natural minerals in photocatalytic systems can not only significantly decrease the pure photocatalyst dosage but can also produce a favorable synergistic effect between photocatalyst and mineral substrate. This review article discusses the current progress regarding the use of various mineral classes in photocatalytic applications. Owing to their unique structures, large surface area, and negatively charged surface, silicate minerals could enhance the adsorption capacity, reduce particle aggregation, and promote photogenerated electron-hole pair separation for hybrid photocatalysts. Moreover, controlling the morphology and structure properties of these materials could have a great influence on their light-harvesting ability and photocatalytic activity. Composed of silica and alumina or magnesia, some silicate minerals possess unique orderly organized porous or layered structures, which are proper templates to modify the photocatalyst framework. The non-silicate minerals (referred to carbonate and carbon-based minerals, sulfate, and sulfide minerals and other special minerals) can function not only as catalyst supports but also as photocatalysts after special modification due to their unique chemical formula and impurities. The dye-sensitized minerals, as another natural mineral application in photocatalysis, are proved to be superior photocatalysts for hydrogen evolution and wastewater treatment. This work aims to provide a complete research overview of the mineral-supported photocatalysts and summarizes the common synergistic effects between different mineral substrates and photocatalysts as well as to inspire more possibilities for natural mineral application in photocatalysis.
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12
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Chaudhary PK, Deo G. Influence of particle size and metal-support interaction on the catalytic performance of Ni-Al2O3 catalysts for the dry and oxidative-dry reforming of methane. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Wang D, Littlewood P, Marks TJ, Stair PC, Weitz E. Coking Can Enhance Product Yields in the Dry Reforming of Methane. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dingdi Wang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Patrick Littlewood
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Peter C. Stair
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eric Weitz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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14
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Effect of TiO 2 Calcination Pretreatment on the Performance of Pt/TiO 2 Catalyst for CO Oxidation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123875. [PMID: 35744997 PMCID: PMC9227817 DOI: 10.3390/molecules27123875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/19/2022]
Abstract
In order to improve the CO catalytic oxidation performance of a Pt/TiO2 catalyst, a series of Pt/TiO2 catalysts were prepared via an impregnation method in this study, and various characterization methods were used to explore the effect of TiO2 calcination pretreatment on the CO catalytic oxidation performance of the catalysts. The results revealed that Pt/TiO2 (700 °C) prepared by TiO2 after calcination pretreatment at 700 °C exhibits a superior CO oxidation activity at low temperatures. After calcination pretreatment, the catalyst exhibited a suitable specific surface area and pore structure, which is beneficial to the diffusion of reactants and reaction products. At the same time, the proportion of adsorbed oxygen on the catalyst surface was increased, which promoted the oxidation of CO. After calcination pretreatment, the adsorption capacity of the catalyst for CO and CO2 decreased, which was beneficial for the simultaneous inhibition of the CO self-poisoning of Pt sites. In addition, the Pt species exhibited a higher degree of dispersion and a smaller particle size, thereby increasing the CO oxidation activity of the Pt/TiO2 (700 °C) catalyst.
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15
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Cao P, Tang P, Bekheet MF, Du H, Yang L, Haug L, Gili A, Bischoff B, Gurlo A, Kunz M, Dunin-Borkowski RE, Penner S, Heggen M. Atomic-Scale Insights into Nickel Exsolution on LaNiO 3 Catalysts via In Situ Electron Microscopy. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:786-796. [PMID: 35059098 PMCID: PMC8762657 DOI: 10.1021/acs.jpcc.1c09257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Using a combination of in situ bulk and surface characterization techniques, we provide atomic-scale insight into the complex surface and bulk dynamics of a LaNiO3 perovskite material during heating in vacuo. Driven by the outstanding activity LaNiO3 in the methane dry reforming reaction (DRM), attributable to the decomposition of LaNiO3 during DRM operation into a Ni//La2O3 composite, we reveal the Ni exsolution dynamics both on a local and global scale by in situ electron microscopy, in situ X-ray diffraction and in situ X-ray photoelectron spectroscopy. To reduce the complexity and disentangle thermal from self-activation and reaction-induced effects, we embarked on a heating experiment in vacuo under comparable experimental conditions in all methods. Associated with the Ni exsolution, the remaining perovskite grains suffer a drastic shrinkage of the grain volume and compression of the structure. Ni particles mainly evolve at grain boundaries and stacking faults. Sophisticated structure analysis of the elemental composition by electron-energy loss mapping allows us to disentangle the distribution of the different structures resulting from LaNiO3 decomposition on a local scale. Important for explaining the DRM activity, our results indicate that most of the Ni moieties are oxidized and that the formation of NiO occurs preferentially at grain edges, resulting from the reaction of the exsolved Ni particles with oxygen released from the perovskite lattice during decomposition via a spillover process from the perovskite to the Ni particles. Correlating electron microscopy and X-ray diffraction data allows us to establish a sequential two-step process in the decomposition of LaNiO3 via a Ruddlesden-Popper La2NiO4 intermediate structure. Exemplified for the archetypical LaNiO3 perovskite material, our results underscore the importance of focusing on both surface and bulk characterization for a thorough understanding of the catalyst dynamics and set the stage for a generalized concept in the understanding of state-of-the art catalyst materials on an atomic level.
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Affiliation(s)
- Pengfei Cao
- School of Chemical
Engineering and Technology, Xi’an
Jiaotong University, Xi’an 710049, China
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
| | - Pengyi Tang
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
- State Key Laboratory
of Information Functional Materials, 2020 X-Lab, ShangHai Institute
of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Maged F. Bekheet
- Chair of Advanced
Ceramic Materials, Institut für Werkstoffwissenschaften und
-technologien, Technical University Berlin, Hardenbergstrasse 40, D-10623 Berlin, Germany
| | - Hongchu Du
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
| | - Luyan Yang
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
| | - Leander Haug
- Department of Physical Chemistry, University
of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Albert Gili
- Chair of Advanced
Ceramic Materials, Institut für Werkstoffwissenschaften und
-technologien, Technical University Berlin, Hardenbergstrasse 40, D-10623 Berlin, Germany
| | - Benjamin Bischoff
- Chair of Advanced
Ceramic Materials, Institut für Werkstoffwissenschaften und
-technologien, Technical University Berlin, Hardenbergstrasse 40, D-10623 Berlin, Germany
| | - Aleksander Gurlo
- Chair of Advanced
Ceramic Materials, Institut für Werkstoffwissenschaften und
-technologien, Technical University Berlin, Hardenbergstrasse 40, D-10623 Berlin, Germany
| | - Martin Kunz
- Advanced Light Source, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rafal E. Dunin-Borkowski
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
| | - Simon Penner
- Department of Physical Chemistry, University
of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Marc Heggen
- Ernst Ruska-Centre
for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, Leo-Brandt-Strasse 1, D-52428 Jülich, Germany
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16
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Delir Kheyrollahi Nezhad P, Bekheet MF, Bonmassar N, Gili A, Kamutzki F, Gurlo A, Doran A, Schwarz S, Bernardi J, Praetz S, Niaei A, Farzi A, Penner S. Elucidating the role of earth alkaline doping in perovskite-based methane dry reforming catalysts. Catal Sci Technol 2022; 12:1229-1244. [PMID: 35310768 PMCID: PMC8859525 DOI: 10.1039/d1cy02044g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/05/2022] [Indexed: 11/21/2022]
Abstract
To elucidate the role of earth alkaline doping in perovskite-based dry reforming of methane (DRM) catalysts, we embarked on a comparative and exemplary study of a Ni-based Sm perovskite with and without Sr doping. While the Sr-doped material appears as a structure-pure Sm1.5Sr0.5NiO4 Ruddlesden Popper structure, the undoped material is a NiO/monoclinic Sm2O3 composite. Hydrogen pre-reduction or direct activation in the DRM mixture in all cases yields either active Ni/Sm2O3 or Ni/Sm2O3/SrCO3 materials, with albeit different short-term stability and deactivation behavior. The much smaller Ni particle size after hydrogen reduction of Sm1.5Sr0.5NiO4, and of generally all undoped materials stabilizes the short and long-term DRM activity. Carbon dioxide reactivity manifests itself in the direct formation of SrCO3 in the case of Sm1.5Sr0.5NiO4, which is dominant at high temperatures. For Sm1.5Sr0.5NiO4, the CO : H2 ratio exceeds 1 at these temperatures, which is attributed to faster direct carbon dioxide conversion to SrCO3 without catalytic DRM reactivity. As no Sm2O2CO3 surface or bulk phase as a result of carbon dioxide activation was observed for any material – in contrast to La2O2CO3 – we suggest that oxy-carbonate formation plays only a minor role for DRM reactivity. Rather, we identify surface graphitic carbon as the potentially reactive intermediate. Graphitic carbon has already been shown as a crucial reaction intermediate in metal-oxide DRM catalysts and appears both for Sm1.5Sr0.5NiO4 and NiO/monoclinic Sm2O3 after reaction as crystalline structure. It is significantly more pronounced for the latter due to the higher amount of oxygen-deficient monoclinic Sm2O3 facilitating carbon dioxide activation. Despite the often reported beneficial role of earth alkaline dopants in DRM catalysis, we show that the situation is more complex. In our studies, the detrimental role of earth alkaline doping manifests itself in the exclusive formation of the sole stable carbonated species and a general destabilization of the Ni/monoclinic Sm2O3 interface by favoring Ni particle sintering. To elucidate the role of earth alkaline doping in perovskite-based dry reforming of methane (DRM) catalysts, we embarked on a comparative and exemplary study of a Ni-based Sm perovskite with and without Sr doping.![]()
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Affiliation(s)
- Parastoo Delir Kheyrollahi Nezhad
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Maged F. Bekheet
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Nicolas Bonmassar
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Albert Gili
- Institut für Chemie, Technische Universität Berlin, Sekretariat TC 8, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Franz Kamutzki
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Andrew Doran
- Advanced Light Source, Lawrence Berkeley National Laboratory Berkeley, California 94720, USA
| | - Sabine Schwarz
- University Service Center for Transmission Electron Microscopy, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
| | - Johannes Bernardi
- University Service Center for Transmission Electron Microscopy, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
| | - Sebastian Praetz
- Institute of Optics and Atomic Physics, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Aligholi Niaei
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Ali Farzi
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Simon Penner
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
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17
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Li T, Tan L, Zhao Y, Song YF. Solar-driven hydrogen production from steam methane reforming using highly dispersed metallic Ni catalysts supported on layered double hydroxide nanosheets. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Penner S. How the in situ monitoring of bulk crystalline phases during catalyst activation results in a better understanding of heterogeneous catalysis. CrystEngComm 2021; 23:6470-6480. [PMID: 34602861 PMCID: PMC8474056 DOI: 10.1039/d1ce00817j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/06/2021] [Indexed: 12/03/2022]
Abstract
The present Highlight article shows the importance of the in situ monitoring of bulk crystalline compounds for a more thorough understanding of heterogeneous catalysts at the intersection of catalysis, materials science, crystallography and inorganic chemistry. Although catalytic action is widely regarded as a purely surface-bound phenomenon, there is increasing evidence that bulk processes can detrimentally or beneficially influence the catalytic properties of various material classes. Such bulk processes include polymorphic transformations, formation of oxygen-deficient structures, transient phases and the formation of a metal-oxide composite. The monitoring of these processes and the subsequent establishment of structure-property relationships are most effective if carried out in situ under real operation conditions. By focusing on synchrotron-based in situ X-ray diffraction as the perfect tool to follow the evolution of crystalline species, we exemplify the strength of the concept with five examples from various areas of catalytic research. As catalyst activation studies are increasingly becoming a hot topic in heterogeneous catalysis, the (self-)activation of oxide- and intermetallic compound-based materials during methanol steam and methane dry reforming is highlighted. The perovskite LaNiO3 is selected as an example to show the complex structural dynamics before and during methane dry reforming, which is only revealed upon monitoring all intermediate crystalline species in the transformation from LaNiO3 into Ni/La2O3/La2O2CO3. ZrO2-based materials form the second group, indicating the in situ decomposition of the intermetallic compound Cu51Zr14 into an epitaxially stabilized Cu/tetragonal ZrO2 composite during methanol steam reforming, the stability of a ZrO0.31C0.69 oxycarbide and the gas-phase dependence of the tetragonal-to-monoclinic ZrO2 polymorphic transformation. The latter is the key parameter to the catalytic understanding of ZrO2 and is only appreciated in full detail once it is possible to follow the individual steps of the transformation between the crystalline polymorphic structures. A selected example is devoted to how the monitoring of crystalline reactive carbon during methane dry reforming operation aids in the mechanistic understanding of a Ni/MnO catalyst. The most important aspect is the strict use of in situ monitoring of the structural changes occurring during (self-)activation to establish meaningful structure-property relationships allowing conclusions beyond isolated surface chemical aspects.
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Affiliation(s)
- Simon Penner
- Institute of Physical Chemistry, University of Innsbruck Innrain 52c A-6020 Innsbruck Austria +4351250758003
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19
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He L, Li M, Li WC, Xu W, Wang Y, Wang YB, Shen W, Lu AH. Robust and Coke-free Ni Catalyst Stabilized by 1–2 nm-Thick Multielement Oxide for Methane Dry Reforming. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02995] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lei He
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Mingrun Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wen-Cui Li
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei Xu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yang Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yan-Bo Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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20
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Zhang X, Deng J, Pupucevski M, Impeng S, Yang B, Chen G, Kuboon S, Zhong Q, Faungnawakij K, Zheng L, Wu G, Zhang D. High-Performance Binary Mo–Ni Catalysts for Efficient Carbon Removal during Carbon Dioxide Reforming of Methane. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02124] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyu Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jiang Deng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Max Pupucevski
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Sarawoot Impeng
- National Nanotechnology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Bo Yang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Guorong Chen
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Sanchai Kuboon
- National Nanotechnology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Qingdong Zhong
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Kajornsak Faungnawakij
- National Nanotechnology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Gang Wu
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
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21
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Sandoval-Bohórquez VS, Morales-Valencia EM, Castillo-Araiza CO, Ballesteros-Rueda LM, Baldovino-Medrano VG. Kinetic Assessment of the Dry Reforming of Methane over a Ni–La 2O 3 Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Víctor Stivenson Sandoval-Bohórquez
- Centro de Investigaciones en Catálisis (@CICAT UIS), Parque Tecnológico Guatiguará (PTG), Km. 2 vía El Refugio, Universidad Industrial de Santander, Piedecuesta (Santander) 681011, Colombia
| | - Edgar M. Morales-Valencia
- Centro de Investigaciones en Catálisis (@CICAT UIS), Parque Tecnológico Guatiguará (PTG), Km. 2 vía El Refugio, Universidad Industrial de Santander, Piedecuesta (Santander) 681011, Colombia
| | - Carlos O. Castillo-Araiza
- Laboratorio de Ingeniería de Reactores Aplicada a Sistemas Químicos y Biológicos, Departamento de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana—Iztapalapa, 09340 CDMX, Mexico
| | - Luz M. Ballesteros-Rueda
- Centro de Investigaciones en Catálisis (@CICAT UIS), Parque Tecnológico Guatiguará (PTG), Km. 2 vía El Refugio, Universidad Industrial de Santander, Piedecuesta (Santander) 681011, Colombia
| | - Víctor G. Baldovino-Medrano
- Centro de Investigaciones en Catálisis (@CICAT UIS), Parque Tecnológico Guatiguará (PTG), Km. 2 vía El Refugio, Universidad Industrial de Santander, Piedecuesta (Santander) 681011, Colombia
- Laboratorio de Ciencia de Superficies (#SurfLab-UIS), Parque Tecnológico Guatiguará (PTG), Km. 2 vía El Refugio, Universidad Industrial de Santander, Piedecuesta (Santander) 681011, Colombia
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22
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Joo S, Kim K, Kwon O, Oh J, Kim HJ, Zhang L, Zhou J, Wang JQ, Jeong HY, Han JW, Kim G. Enhancing Thermocatalytic Activities by Upshifting the d-Band Center of Exsolved Co-Ni-Fe Ternary Alloy Nanoparticles for the Dry Reforming of Methane. Angew Chem Int Ed Engl 2021; 60:15912-15919. [PMID: 33961725 DOI: 10.1002/anie.202101335] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 01/06/2023]
Abstract
Dry reforming of methane (DRM) is a feasible solution to address the reduction of greenhouse gases stipulated by the Paris Climate Agreement, given that it adds value by converting trivial gases, CO2 and CH4 , simultaneously into useful syngas. However, the conventional Ni catalyst undergoes deactivation due to carbon coking and particle agglomeration. Here we demonstrate a highly efficient and durable DRM catalyst: exsolved Co-Ni-Fe ternary alloy nanoparticles on the layered perovskite PrBaMn1.7 Co0.1 Ni0.2 O5+δ produced by topotactic exsolution. This method readily allows the generation of a larger number of exsolved nanoparticles with enhanced catalytic activity above that of Ni monometallic and Co-Ni bimetallic particles. The enhancement is achieved by the upshift of the d-band center of Co-Ni-Fe relative to those of Co-Ni and Ni, meaning easier charge donation to the adsorbate. Furthermore, the exsolved catalyst shows exceptional stability, with continuous DRM operation for about 350 hours.
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Affiliation(s)
- Sangwook Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kyeounghak Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ohhun Kwon
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jinkyung Oh
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hyung Jun Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Jing Zhou
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Jian-Qiang Wang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Hu Young Jeong
- UNIST Central Research Facilities and School of Materials Science and Engineering, UNIST, Ulsan, 44919, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Guntae Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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23
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Joo S, Kim K, Kwon O, Oh J, Kim HJ, Zhang L, Zhou J, Wang J, Jeong HY, Han JW, Kim G. Enhancing Thermocatalytic Activities by Upshifting the d‐Band Center of Exsolved Co‐Ni‐Fe Ternary Alloy Nanoparticles for the Dry Reforming of Methane. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101335] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sangwook Joo
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Kyeounghak Kim
- Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Ohhun Kwon
- Department of Chemical & Biomolecular Engineering University of Pennsylvania Philadelphia PA 19104 USA
| | - Jinkyung Oh
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Hyung Jun Kim
- Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 P. R. China
| | - Jing Zhou
- Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 P. R. China
| | - Jian‐Qiang Wang
- Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 P. R. China
| | - Hu Young Jeong
- UNIST Central Research Facilities and School of Materials Science and Engineering, UNIST Ulsan 44919 Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Guntae Kim
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
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24
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Penner S, Kheyrollahi Nezhad PD. Steering the Catalytic Properties of Intermetallic Compounds and Alloys in Reforming Reactions by Controlled in Situ Decomposition and Self-Activation. ACS Catal 2021; 11:5271-5286. [PMID: 34055455 PMCID: PMC8154320 DOI: 10.1021/acscatal.1c00718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/08/2021] [Indexed: 12/28/2022]
Abstract
Based on the increasing importance of intermetallic compounds and alloys in heterogeneous catalysis, we explore the possibilities of using selected intermetallic compounds and alloy structures and phases as catalyst precursors to prepare highly active and CO2-selective methanol steam reforming (MSR) as well as dry reforming of methane (DRM) catalyst entities by controlled in situ decomposition and self-activation. The exemplary discussed examples (Cu51Zr14, CuZn, Pd2Zr, GaPd2, Cu2In, ZnPd, and InPd) show both the advantages and pitfalls of this approach and how the concept can be generalized to encompass a wider set of intermetallic compounds and alloy structures. Despite the common feature of all systems being the more or less pronounced decomposition of the intermetallic compound surface and bulk structure and the in situ formation of much more complex catalyst entities, differences arise due to the oxidation propensity and general thermodynamic stability of the chosen intermetallic compound/alloy and their constituents. The metastability and intrinsic reactivity of the evolving oxide polymorph introduced upon decomposition and the surface and bulk reactivity of carbon, governed by the nature of the metal/intermetallic compound-oxide interfacial sites, are of equal importance. Structural and chemical rearrangements, dictating the catalytic performance of the resulting entity, are present in the form of a complete destruction of the intermetallic compound bulk structure (Cu51Zr14) and the formation of an metal/oxide (Cu51Zr14, InPd) or intermetallic compound/oxide (ZnPd, Cu2In, CuZn) interface or the intertranformation of intermetallic compounds with varying composition (Pd2Zr) before the formation of Pd/ZrO2. In this Perspective, the prerequisites to obtain a leading theme for pronounced CO2 selectivity and high activity will be reviewed. Special focus will be put on raising awareness of the intrinsic properties of the discussed catalyst systems that need to be controlled to obtain catalytically prospective materials. The use of model systems to bridge the material's gap in catalysis will also be highlighted for selected examples.
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Affiliation(s)
- Simon Penner
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Parastoo Delir Kheyrollahi Nezhad
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
- Reactor
and Catalyst Research Lab, Department of Chemical Engineering, University of Tabriz, Tabriz, Iran
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25
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Kim Y, Lim HS, Lee M, Lee JW. Ni-Fe-Al mixed oxide for combined dry reforming and decomposition of methane with CO2 utilization. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.02.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Challiwala MS, Choudhury HA, Wang D, El-Halwagi MM, Weitz E, Elbashir NO. A novel CO 2 utilization technology for the synergistic co-production of multi-walled carbon nanotubes and syngas. Sci Rep 2021; 11:1417. [PMID: 33446882 PMCID: PMC7809154 DOI: 10.1038/s41598-021-80986-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/28/2020] [Indexed: 12/02/2022] Open
Abstract
Dry reforming of methane (DRM) is a well-known process in which CH4 and CO2 catalytically react to produce syngas. Solid carbon is a well-known byproduct of the DRM but is undesirable as it leads to catalyst deactivation. However, converting CO2 and CH4 into solid carbon serves as a promising carbon capture and sequestration technique that has been demonstrated in this study by two patented processes. In the first process, known as CARGEN technology (CARbon GENerator), a novel concept of two reactors in series is developed that separately convert the greenhouse gases (GHGs) into multi-walled carbon nanotubes (MWCNTs) and syngas. CARGEN enables at least a 50% reduction in energy requirement with at least 65% CO2 conversion compared to the DRM process. The second process presents an alternative pathway for the regeneration/reactivation of the spent DRM/CARGEN catalyst using CO2. Provided herein is the first report on an experimental demonstration of a 'switching' technology in which CO2 is utilized in both the operation and the regeneration cycles and thus, finally contributing to the overall goal of CO2 fixation. The following studies support all the results in this work: physisorption, chemisorption, XRD, XPS, SEM, TEM, TGA, ICP, and Raman analysis.
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Affiliation(s)
- Mohamed S Challiwala
- Artie Mcferrin Department of Chemical Engineering, Texas A&M University, College Station, USA
- TEES Gas and Fuels Research Center, College Station, USA
- Chemical Engineering and Petroleum Engineering Program, Texas A&M University at Qatar, Doha, Qatar
| | - Hanif A Choudhury
- TEES Gas and Fuels Research Center, College Station, USA
- Chemical Engineering and Petroleum Engineering Program, Texas A&M University at Qatar, Doha, Qatar
| | | | - Mahmoud M El-Halwagi
- Artie Mcferrin Department of Chemical Engineering, Texas A&M University, College Station, USA
- TEES Gas and Fuels Research Center, College Station, USA
| | - Eric Weitz
- Northwestern University, Evanston, IL, USA
| | - Nimir O Elbashir
- TEES Gas and Fuels Research Center, College Station, USA.
- Chemical Engineering and Petroleum Engineering Program, Texas A&M University at Qatar, Doha, Qatar.
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Bekheet MF, Delir Kheyrollahi Nezhad P, Bonmassar N, Schlicker L, Gili A, Praetz S, Gurlo A, Doran A, Gao Y, Heggen M, Niaei A, Farzi A, Schwarz S, Bernardi J, Klötzer B, Penner S. Steering the Methane Dry Reforming Reactivity of Ni/La 2O 3 Catalysts by Controlled In Situ Decomposition of Doped La 2NiO 4 Precursor Structures. ACS Catal 2021; 11:43-59. [PMID: 33425477 PMCID: PMC7783868 DOI: 10.1021/acscatal.0c04290] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Indexed: 11/28/2022]
Abstract
The influence of A- and/or B-site doping of Ruddlesden-Popper perovskite materials on the crystal structure, stability, and dry reforming of methane (DRM) reactivity of specific A2BO4 phases (A = La, Ba; B = Cu, Ni) has been evaluated by a combination of catalytic experiments, in situ X-ray diffraction, X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), and aberration-corrected electron microscopy. At room temperature, B-site doping of La2NiO4 with Cu stabilizes the orthorhombic structure (Fmmm) of the perovskite, while A-site doping with Ba yields a tetragonal space group (I4/mmm). We observed the orthorhombic-to-tetragonal transformation above 170 °C for La2Ni0.9Cu0.1O4 and La2Ni0.8Cu0.2O4, slightly higher than for undoped La2NiO4. Loss of oxygen in interstitial sites of the tetragonal structure causes further structure transformations for all samples before decomposition in the temperature range of 400 °C-600 °C. Controlled in situ decomposition of the parent or A/B-site doped perovskite structures in a DRM mixture (CH4:CO2 = 1:1) in all cases yields an active phase consisting of exsolved nanocrystalline metallic Ni particles in contact with hexagonal La2O3 and a mixture of (oxy)carbonate phases (hexagonal and monoclinic La2O2CO3, BaCO3). Differences in the catalytic activity evolve because of (i) the in situ formation of Ni-Cu alloy phases (in a composition of >7:1 = Ni:Cu) for La2Ni0.9Cu0.1O4, La2Ni0.8Cu0.2O4, and La1.8Ba0.2Ni0.9Cu0.1O4, (ii) the resulting Ni particle size and amount of exsolved Ni, and (iii) the inherently different reactivity of the present (oxy)carbonate species. Based on the onset temperature of catalytic DRM activity, the latter decreases in the order of La2Ni0.9Cu0.1O4 ∼ La2Ni0.8Cu0.2O4 ≥ La1.8Ba0.2Ni0.9Cu0.1O4 > La2NiO4 > La1.8Ba0.2NiO4. Simple A-site doped La1.8Ba0.2NiO4 is essentially DRM inactive. The Ni particle size can be efficiently influenced by introducing Ba into the A site of the respective Ruddlesden-Popper structures, allowing us to control the Ni particle size between 10 nm and 30 nm both for simple B-site and A-site doped structures. Hence, it is possible to steer both the extent of the metal-oxide-(oxy)carbonate interface and its chemical composition and reactivity. Counteracting the limitation of the larger Ni particle size, the activity can, however, be improved by additional Cu-doping on the B-site, enhancing the carbon reactivity. Exemplified for the La2NiO4 based systems, we show how the delicate antagonistic balance of doping with Cu (rendering the La2NiO4 structure less stable and suppressing coking by efficiently removing surface carbon) and Ba (rendering the La2NiO4 structure more stable and forming unreactive surface or interfacial carbonates) can be used to tailor prospective DRM-active catalysts.
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Affiliation(s)
- Maged F. Bekheet
- Fachgebiet Keramische
Werkstoffe/Chair of Advanced Ceramic Materials, Institut für
Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Parastoo Delir Kheyrollahi Nezhad
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, University of Tabriz, Tabriz 51386, Iran
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Nicolas Bonmassar
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Lukas Schlicker
- Fachgebiet Keramische
Werkstoffe/Chair of Advanced Ceramic Materials, Institut für
Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Albert Gili
- Fachgebiet Keramische
Werkstoffe/Chair of Advanced Ceramic Materials, Institut für
Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Sebastian Praetz
- Institute of Optics
and Atomic Physics, Technische Universität
Berlin, Hardenbergstraße
36, 10623 Berlin, Germany
| | - Aleksander Gurlo
- Fachgebiet Keramische
Werkstoffe/Chair of Advanced Ceramic Materials, Institut für
Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Andrew Doran
- Advanced Light Source, Lawrence Berkeley National Laboratory Berkeley, California 94720, United States
| | - Yuanxu Gao
- Ernst Ruska-Centrum
für Mikroskopie und Spektroskopie mit Elektronen Forschungszentrum
Jülich GmbH 52425 Jülich, Germany
| | - Marc Heggen
- Ernst Ruska-Centrum
für Mikroskopie und Spektroskopie mit Elektronen Forschungszentrum
Jülich GmbH 52425 Jülich, Germany
| | - Aligholi Niaei
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, University of Tabriz, Tabriz 51386, Iran
| | - Ali Farzi
- Reactor & Catalyst Research Lab, Department of Chemical Engineering, University of Tabriz, Tabriz 51386, Iran
| | - Sabine Schwarz
- University Service Center for Transmission Electron Microscopy, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
| | - Johannes Bernardi
- University Service Center for Transmission Electron Microscopy, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
| | - Bernhard Klötzer
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Simon Penner
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
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Carbon Nanotube Formation on Cr-Doped Ferrite Catalyst during Water Gas Shift Membrane Reaction: Mechanistic Implications and Extended Studies on Dry Gas Conversions. Catalysts 2020. [DOI: 10.3390/catal10080927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A nanocrystalline chromium-doped ferrite (FeCr) catalyst was shown to coproduce H2 and multiwalled carbon nanotubes (MWCNTs) during water gas shift (WGS) reaction in a H2-permselective zeolite membrane reactor (MR) at reaction pressures of ~20 bar. The FeCr catalyst was further demonstrated in the synthesis of highly crystalline and dimensionally uniform MWCNTs from a dry gas mixture of CO and CH4, which were the apparent sources for MWCNT growth in the WGS MR. In both the WGS MR and dry gas reactions, the operating temperature was 500 °C, which is significantly lower than those commonly used in MWCNT production by chemical vapor deposition (CVD) method from CO, CH4, or any other precursor gases. Extensive ex situ characterizations of the reaction products revealed that the FeCr catalyst remained in partially reduced states of Fe3+/Fe2+ and Cr6+/Cr3+ in WGS membrane reaction while further reduction of Fe2+ to Fe0 occurred in the CO/CH4 dry gas environments. The formation of the metallic Fe nanoparticles or catalyst surface dramatically improved the crystallinity and dimensional uniformity of the MWCNTs from dry gas reaction as compared to that from WGS reaction in the MR. Reaction of the CO/CH4 mixture containing 500 ppmv H2S also resulted in high-quality MWCNTs similar to those from the H2S-free feed gas, demonstrating excellent sulfur tolerance of the FeCr catalyst that is practically meaningful for utilization of biogas and cheap coal-derived syngas.
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Abstract
The conversion of CH4 and CO2 to syngas using low-cost nickel catalysts has attracted considerable interest in the clean energy and environment field. Nickel nanoparticles catalysts suffer from serious deactivation due mainly to carbon deposition. Here, we report a facile synthesis of Ni single-atom and nanoparticle catalysts dispersed on hydroxyapatite (HAP) support using the strong electrostatic adsorption (SEA) method. Ni single-atom catalysts exhibit excellent resistance to carbon deposition and high atom efficiency with the highest reaction rate of 1186.2 and 816.5 mol.gNi−1.h−1 for CO2 and CH4, respectively. Although Ni single-atom catalysts aggregate quickly to large particles, the polyvinylpyrrolidone (PVP)-assisted synthesis exhibited a significant improvement of Ni single-atom stability. Characterizations of spent catalysts revealed that carbon deposition is more favorable over nickel nanoparticles. Interestingly, it was found that, separately, CH4 decomposition on nickel nanoparticle catalysts and subsequent gasification of deposit carbon with CO2 resulted in CO generation, which indicates that carbon is reacting as an intermediate species during reaction. Accordingly, the approach used in this work for the design and control of Ni single-atom and nanoparticles-based catalysts, for dry reforming of methane (DRM), paves the way towards the development of stable noble metals-free catalysts.
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Weng W, Jiang B, Wang Z, Xiao W. In situ electrochemical conversion of CO 2 in molten salts to advanced energy materials with reduced carbon emissions. SCIENCE ADVANCES 2020; 6:eaay9278. [PMID: 32158949 PMCID: PMC7048422 DOI: 10.1126/sciadv.aay9278] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/04/2019] [Indexed: 05/25/2023]
Abstract
Fixation of CO2 on the occasion of its generation to produce advanced energy materials has been an ideal solution to relieve global warming. We herein report a delicately designed molten salt electrolyzer using molten NaCl-CaCl2-CaO as electrolyte, soluble GeO2 as Ge feedstock, conducting substrates as cathode, and carbon as anode. A cathode-anode synergy is verified for coelectrolysis of soluble GeO2 and in situ-generated CO2 at the carbon anode to cathodic Ge nanoparticles encapsulated in carbon nanotubes (Ge@CNTs), contributing to enhanced oxygen evolution at carbon anode and hence reduced CO2 emissions. When evaluated as anode materials for lithium-ion batteries, the Ge@CNTs hybrid shows high reversible capacity, long cycle life, and excellent high-rate capability. The process contributes to metallurgy with reduced carbon emissions, in operando CO2 fixation to advanced energy materials, and upgraded conversion of carbon bulks to CNTs.
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Bonmassar N, Bekheet MF, Schlicker L, Gili A, Gurlo A, Doran A, Gao Y, Heggen M, Bernardi J, Klötzer B, Penner S. In Situ-Determined Catalytically Active State of LaNiO3 in Methane Dry Reforming. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03687] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas Bonmassar
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Maged F. Bekheet
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Lukas Schlicker
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Albert Gili
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
| | - Andrew Doran
- Advanced Light Source, Lawrence Berkeley National Laboratory Berkeley, California 94720, United States
| | - Yuanxu Gao
- Ernst Ruska-Centrum für Mikroskopie und Spektroskopie mit Elektronen, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Marc Heggen
- Ernst Ruska-Centrum für Mikroskopie und Spektroskopie mit Elektronen, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Johannes Bernardi
- University Service Center for Transmission Electron Microscopy, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
| | - Bernhard Klötzer
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Simon Penner
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
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Gili A, Schlicker L, Bekheet MF, Görke O, Kober D, Simon U, Littlewood P, Schomäcker R, Doran A, Gaissmaier D, Jacob T, Selve S, Gurlo A. Revealing the Mechanism of Multiwalled Carbon Nanotube Growth on Supported Nickel Nanoparticles by in Situ Synchrotron X-ray Diffraction, Density Functional Theory, and Molecular Dynamics Simulations. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00733] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Albert Gili
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Lukas Schlicker
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Maged F. Bekheet
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Oliver Görke
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Delf Kober
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Ulla Simon
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
| | - Patrick Littlewood
- Center for Catalysis and Surface Science, Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Reinhard Schomäcker
- Institut für Chemie, Technische Universität Berlin, Sekretariat TC 8, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Andrew Doran
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Daniel Gaissmaier
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
- Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstraße 11, 89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box
3640, 76021 Karlsruhe, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
- Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstraße 11, 89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box
3640, 76021 Karlsruhe, Germany
| | - Sören Selve
- Center for Electron Microscopy (ZELMI), Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und-technologien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany
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Peng H, Zhang X, Han X, You X, Lin S, Chen H, Liu W, Wang X, Zhang N, Wang Z, Wu P, Zhu H, Dai S. Catalysts in Coronas: A Surface Spatial Confinement Strategy for High-Performance Catalysts in Methane Dry Reforming. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00968] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Honggen Peng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Xianhua Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Xue Han
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Xiaojuan You
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Sixue Lin
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Hao Chen
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Wenming Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Ning Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Zheng Wang
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, China
| | - Huiyuan Zhu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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Littlewood P, Weitz E, Marks TJ, Stair PC. Kinetic Isoconversion Loop Catalysis: A Reactor Operation Mode To Investigate Slow Catalyst Deactivation Processes, with Ni/Al 2O 3 for the Dry Reforming of Methane. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04320] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Patrick Littlewood
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eric Weitz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Peter C. Stair
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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