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Tébar-Soler C, Diaconescu VM, Simonelli L, Missyul A, Perez-Dieste V, Villar-García I, Gómez D, Brubach JB, Roy P, Corma A, Concepción P. Stabilization of the Active Ruthenium Oxycarbonate Phase for Low-Temperature CO 2 Methanation. ACS Catal 2024; 14:4290-4300. [PMID: 38510664 PMCID: PMC10949189 DOI: 10.1021/acscatal.3c05679] [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: 11/22/2023] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
Interstitial carbon-doped RuO2 catalyst with the newly reported ruthenium oxycarbonate phase is a key component for low-temperature CO2 methanation. However, a crucial factor is the stability of interstitial carbon atoms, which can cause catalyst deactivation when removed during the reaction. In this work, the stabilization mechanism of the ruthenium oxycarbonate active phase under reaction conditions is studied by combining advanced operando spectroscopic tools with catalytic studies. Three sequential processes: carbon diffusion, metal oxide reduction, and decomposition of the oxycarbonate phase and their influence by the reaction conditions, are discussed. We present how the reaction variables and catalyst composition can promote carbon diffusion, stabilizing the oxycarbonate catalytically active phase under steady-state reaction conditions and maintaining catalyst activity and stability over long operation times. In addition, insights into the reaction mechanism and a detailed analysis of the catalyst composition that identifies an adequate balance between the two phases, i.e., ruthenium oxycarbonate and ruthenium metal, are provided to ensure an optimum catalytic behavior.
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Affiliation(s)
- Carmen Tébar-Soler
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Vlad Martin Diaconescu
- CELLS
- ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Laura Simonelli
- CELLS
- ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Alexander Missyul
- CELLS
- ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Virginia Perez-Dieste
- CELLS
- ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Ignacio Villar-García
- CELLS
- ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Daviel Gómez
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Jean-Blaise Brubach
- Synchrotron
SOLEIL, AILES beamline, L’Orme des Merisiers, 91190 Saint Aubin, France
| | - Pascale Roy
- Synchrotron
SOLEIL, AILES beamline, L’Orme des Merisiers, 91190 Saint Aubin, France
| | - Avelino Corma
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Patricia Concepción
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
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2
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Meng H, Yang Y, Shen T, Yin Z, Wang L, Liu W, Yin P, Ren Z, Zheng L, Zhang J, Xiao FS, Wei M. Designing Cu 0-Cu + dual sites for improved C-H bond fracture towards methanol steam reforming. Nat Commun 2023; 14:7980. [PMID: 38042907 PMCID: PMC10693576 DOI: 10.1038/s41467-023-43679-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/16/2023] [Indexed: 12/04/2023] Open
Abstract
Copper-based catalysts serve as the predominant methanol steam reforming material although several fundamental issues remain ambiguous such as the identity of active center and the aspects of reaction mechanism. Herein, we prepare Cu/Cu(Al)Ox catalysts with amorphous alumina-stabilized Cu2O adjoining Cu nanoparticle to provide Cu0-Cu+ sites. The optimized catalyst exhibits 99.5% CH3OH conversion with a corresponding H2 production rate of 110.8 μmol s-1 gcat-1 with stability over 300 h at 240 °C. A binary function correlation between the CH3OH reaction rate and surface concentrations of Cu0 and Cu+ is established based on kinetic studies. Intrinsic active sites in the catalyst are investigated with in situ spectroscopy characterization and theoretical calculations. Namely, we find that important oxygen-containing intermediates (CH3O* and HCOO*) adsorb at Cu0-Cu+ sites with a moderate adsorption strength, which promotes electron transfer from the catalyst to surface species and significantly reduces the reaction barrier of the C-H bond cleavage in CH3O* and HCOO* intermediates.
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Affiliation(s)
- Hao Meng
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou, 324000, PR China
| | - Yusen Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou, 324000, PR China.
| | - Tianyao Shen
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Zhiming Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Lei Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou, 324000, PR China
| | - Wei Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Pan Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Zhen Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jian Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Feng-Shou Xiao
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, PR China.
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou, 324000, PR China.
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Peng M, Dong C, Gao R, Xiao D, Liu H, Ma D. Fully Exposed Cluster Catalyst (FECC): Toward Rich Surface Sites and Full Atom Utilization Efficiency. ACS CENTRAL SCIENCE 2021; 7:262-273. [PMID: 33655065 PMCID: PMC7908029 DOI: 10.1021/acscentsci.0c01486] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Indexed: 05/17/2023]
Abstract
Increasing attention has been paid to single-atom catalysts (SACs) in heterogeneous catalysis because of their unique electronic properties, maximized atomic utilization efficiency, and potential to serve as a bridge between the heterogeneous and homogeneous catalysis. However, SACs can have limited advantages or even constrained applications for the reactions that require designated metallic states with multiple atoms or surface sites with metal-metal bonds. As a cross-dimensional extension to the concept of SACs, fully exposed cluster catalysts (FECCs) offer diverse surface sites formed by an ensemble of metal atoms, for the adsorption and transformation of reactants/intermediates. More importantly, FECCs have the advantage of maximized atom utilization efficiency. Thus, FECCs provide a novel platform to design effective and efficient catalysts for certain chemical processes. This outlook summarizes recent advances and proposes prospective research directions in the design of catalysts and characterizations of FECCs, together with potential challenges.
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Affiliation(s)
- Mi Peng
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Chunyang Dong
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Rui Gao
- School
of Chemistry and Chemical Engineering, Inner
Mongolia University, Hohhot 010021, P. R. China
| | - Dequan Xiao
- Chemistry
and Chemical Engineering Department, University
of New Haven, West Haven, Connecticut 06516, United States
| | - Hongyang Liu
- Shenyang
National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
| | - Ding Ma
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
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Influence of the ZrO2 Crystalline Phases on the Nature of Active Sites in PdCu/ZrO2 Catalysts for the Methanol Steam Reforming Reaction—An In Situ Spectroscopic Study. Catalysts 2020. [DOI: 10.3390/catal10091005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this work, the electronic properties of the metal sites in cubic and monoclinic ZrO2 supported Pd and PdCu catalysts have been investigated using CO as probe molecule in in-situ IR studies, and the surface composition of the outermost layers has been studied by APXPS (Ambient Pressure X-ray Photoemission Spectroscopy). The reaction products were followed by mass spectrometry, making it possible to relate the chemical properties of the catalysts under reaction conditions with their selectivity. Combining these techniques, it has been shown that the structure of the support (monoclinic or cubic ZrO2) affects the metal dispersion, mobility, and reorganization of metal sites under methanol steam reforming (MSR) conditions, influencing the oxidation state of surface metal species, with important consequences in the catalytic activity. Correlating the mass spectra of the reaction products with these spectroscopic studies, it was possible to conclude that electropositive metal species play an imperative role for high CO2 and H2 selectivity in the MSR reaction (less CO formation).
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Niu Y, Huang X, Wang Y, Xu M, Chen J, Xu S, Willinger MG, Zhang W, Wei M, Zhang B. Manipulating interstitial carbon atoms in the nickel octahedral site for highly efficient hydrogenation of alkyne. Nat Commun 2020; 11:3324. [PMID: 32620829 PMCID: PMC7335178 DOI: 10.1038/s41467-020-17188-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 06/12/2020] [Indexed: 11/09/2022] Open
Abstract
Light elements in the interstitial site of transition metals have strong influence on heterogeneous catalysis via either expression of surface structures or even direct participation into reaction. Interstitial atoms are generally metastable with a strong environmental dependence, setting up giant challenges in controlling of heterogeneous catalysis. Herein, we show that the desired carbon atoms can be manipulated within nickel (Ni) lattice for improving the selectivity in acetylene hydrogenation reaction. The radius of octahedral space of Ni is expanded from 0.517 to 0.524 Å via formation of Ni3Zn, affording the dissociated carbon atoms to readily dissolve and diffuse at mild temperatures. Such incorporated carbon atoms coordinate with the surrounding Ni atoms for generation of Ni3ZnC0.7 and thereof inhibit the formation of subsurface hydrogen structures. Thus, the selectivity and stability are dramatically improved, as it enables suppressing the pathway of ethylene hydrogenation and restraining the accumulation of carbonaceous species on surface.
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Affiliation(s)
- Yiming Niu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 110016, Shenyang, China.,Department of Materials Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Xing Huang
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, 14195, Berlin, Germany.,Scientific Center for Optical and Electron Microscopy, Otto-Stern-Weg 3, ETH Zurich, 8093, Zurich, Switzerland
| | - Yongzhao Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 110016, Shenyang, China.,Department of Materials Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Ming Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Junnan Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 110016, Shenyang, China.,Department of Materials Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Shuliang Xu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Marc-Georg Willinger
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, 14195, Berlin, Germany.,Scientific Center for Optical and Electron Microscopy, Otto-Stern-Weg 3, ETH Zurich, 8093, Zurich, Switzerland
| | - Wei Zhang
- Electron Microscopy Center, Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, Jilin University, 130012, Changchun, China.
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China.
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 110016, Shenyang, China. .,Department of Materials Science and Engineering, University of Science and Technology of China, 230026, Hefei, China.
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Copper–Zirconia Catalysts: Powerful Multifunctional Catalytic Tools to Approach Sustainable Processes. Catalysts 2020. [DOI: 10.3390/catal10020168] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Copper–zirconia catalysts find many applications in different reactions owing to their unique surface properties and relatively easy manufacture. The so-called methanol economy, which includes the CO2 and CO valorization and the hydrogen production, and the emerging (bio)alcohol upgrading via dehydrogenative coupling reaction, are two critical fields for a truly sustainable development in which copper–zirconia has a relevant role. In this review, we provide a systematic view on the factors most impacting the catalytic activity and try to clarify some of the discrepancies that can be found in the literature. We will show that contrarily to the large number of studies focusing on the zirconia crystallographic phase, in the last years, it has turned out that the degree of surface hydroxylation and the copper–zirconia interphase are in fact the two mostly determining factors to be controlled to achieve high catalytic performances.
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