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Braga A, Armengol-Profitós M, Pascua-Solé L, Vendrell X, Soler L, Serrano I, Villar-Garcia IJ, Pérez-Dieste V, Divins NJ, Llorca J. Bimetallic NiFe Nanoparticles Supported on CeO 2 as Catalysts for Methane Steam Reforming. ACS APPLIED NANO MATERIALS 2023; 6:7173-7185. [PMID: 37205295 PMCID: PMC10186329 DOI: 10.1021/acsanm.3c00104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/04/2023] [Indexed: 05/21/2023]
Abstract
Ni-Fe nanocatalysts supported on CeO2 have been prepared for the catalysis of methane steam reforming (MSR) aiming for coke-resistant noble metal-free catalysts. The catalysts have been synthesized by traditional incipient wetness impregnation as well as dry ball milling, a green and more sustainable preparation method. The impact of the synthesis method on the catalytic performance and the catalysts' nanostructure has been investigated. The influence of Fe addition has been addressed as well. The reducibility and the electronic and crystalline structure of Ni and Ni-Fe mono- and bimetallic catalysts have been characterized by temperature programmed reduction (H2-TPR), in situ synchrotron X-ray diffraction (SXRD), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Their catalytic activity was tested between 700 and 950 °C at 108 L gcat-1 h-1 and with the reactant flow varying between 54 and 415 L gcat-1 h-1 at 700 °C. Hydrogen production rates of 67 mol gmet-1 h-1 have been achieved. The performance of the ball-milled Fe0.1Ni0.9/CeO2 catalyst was similar to that of Ni/CeO2 at high temperatures, but Raman spectroscopy revealed a higher amount of highly defective carbon on the surface of Ni-Fe nanocatalysts. The reorganization of the surface under MSR of the ball-milled NiFe/CeO2 has been monitored by in situ near-ambient pressure XPS experiments, where a strong reorganization of the Ni-Fe nanoparticles with segregation of Fe toward the surface has been observed. Despite the catalytic activity being lower in the low-temperature regime, Fe addition for the milled nanocatalyst increased the coke resistance and could be an efficient alternative to industrial Ni/Al2O3 catalysts.
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Affiliation(s)
- Andrea Braga
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Marina Armengol-Profitós
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Laia Pascua-Solé
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Xavier Vendrell
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Lluís Soler
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Isabel Serrano
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Ignacio J. Villar-Garcia
- ALBA
Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès Barcelona, Spain
| | - Virginia Pérez-Dieste
- ALBA
Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès Barcelona, Spain
| | - Núria J. Divins
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Jordi Llorca
- Institute
of Energy Technologies, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politècnica
de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
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Wu W, Li W, Wu M, Zhang H, Zhu C, Jiang Y. Direct oxidation of methane to methanol using CuMoO 4. RSC Adv 2023; 13:5393-5404. [PMID: 36793293 PMCID: PMC9923457 DOI: 10.1039/d3ra00058c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Upgrading methane into methanol or other high value-added chemicals is not only beneficial to mitigate the greenhouse effect, but also provides basic raw materials for industrial production. Nowadays, most research is limited to zeolite systems, and it is a considerable challenge to extend the support to metal oxides while achieving a high yield of methanol. In this paper, we take advantage of impregnation methods to synthesise a novel Cu/MoO3 catalyst, which can convert methane to methanol in the gaseous phase. At 600 °C, the Cu(2)/MoO3 catalyst can achieve a maximum STYCH3OH of 47.2 μmol (g-1 h-1) with a molar ratio CH4 : O2 : H2O = 5 : 1.4 : 10. Consequences of SEM, TEM, HRTEM and XRD substantiate that Cu is incorporated into the lattice of MoO3 to form CuMoO4. And transmission infrared spectroscopy, Raman spectroscopy together with XPS characterization techniques confirm the generation of CuMoO4, which is the main active site provider. This work provides a new support platform for Cu-based catalyst research in the methane-to-methanol system.
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Affiliation(s)
- Wenjian Wu
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786
| | - Wenzhi Li
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786.,Institute of Energy, Hefei Comprehensive National Science Center Hefei 230031 PR China
| | - Mingwei Wu
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786
| | - Hao Zhang
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786
| | - Chen Zhu
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786
| | - Yihang Jiang
- Laboratory of Clean Low-Carbon Energy, University of Science and Technology of China Hefei 230023 PR China +86 0551 63600786 +86 0551 63600786
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Wu M, Li W, Zhu C, Wu W, Zhang L, Zheng T, Fu Y, Yuan L. Single‐Step Oxidation of Low‐Concentration Methane to Methanol in the Gaseous Phase Using Ceria‐Based Iridium‐Copper Catalysts. ChemistrySelect 2023. [DOI: 10.1002/slct.202204745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Mingwei Wu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenzhi Li
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
- Institute of Energy, Hefei Comprehensive National Science Center Hefei 230031 China
| | - Chen Zhu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenjian Wu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Lulu Zhang
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Taimin Zheng
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Yan Fu
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Liang Yuan
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
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Smal E, Bespalko Y, Arapova M, Fedorova V, Valeev K, Eremeev N, Sadovskaya E, Krieger T, Glazneva T, Sadykov V, Simonov M. Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203676. [PMID: 36296866 PMCID: PMC9607641 DOI: 10.3390/nano12203676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 06/12/2023]
Abstract
Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence of support composition and preparation method on the catalysts' morphology and surface features. The oxygen mobility was studied by isotope heteroexchange with C18O2. After testing in DRM, carbon deposits after catalysts' testing in DRM were investigated by temperature-programmed oxidation with thermo-gravimetric analysis. The lowest amounts of carbon deposits were obtained for unmodified Ni-CeZr and Ni-CeNbZr compositions. Ti addition lead to an increased amount of carbon, which was removed at higher temperatures. The use of supercritical supports also resulted in the formation of a higher amount of coke. Catalysts prepared by the supercritical synthesis were tested in DRM for 25 h. The highest activity drop was observed in the first three hours. For all compositions, close values of carbon deposits were revealed.
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Ni/CeO2 Catalyst Prepared via Microimpinging Stream Reactor with High Catalytic Performance for CO2 Dry Reforming Methane. Catalysts 2022. [DOI: 10.3390/catal12060606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Methane reforming with carbon dioxide (DRM) is one promising way to achieve carbon neutrality and convert methane to syngas for high-value chemical production. Catalyst development with better performance is the key to its potential large-scale industrial application due to its deactivation caused by carbon deposition and metal sintering. Hence, a Ni/CeO2 catalyst (Ni/CeO2-M) with higher CO2 conversion and better stability is prepared, supported on CeO2 precipitated via a novel microimpinging stream reactor. A series of ex-situ or in-situ characterizations, such as CO titration measurements, two-step transient surface reaction (two-step TSR), CO2 and CH4 temperature-programmed surface reaction (CO2-TPSR and CH4-TPSR), X-ray absorption fine structure (XAFS), and in-situ Raman spectroscopy study, were used to investigate its structure and mechanism. In contrast to Ni supported on commercial CeO2 (Ni/CeO2-C), the Ni/CeO2-M catalyst with stronger lattice oxygen mobility and higher oxygen storage capacity enhances its CO2 activation ability and carbon deposition. The Ni particle size of the Ni/CeO2-M catalyst decreased, and a higher oxidation state was obtained due to the strong metal–support interaction. Besides the reaction performance improvement of the Ni/CeO2-M catalyst, the novel microimpinging stream reactor could achieve catalyst continuous production with a high preparation efficiency. This work provides a novel method for the high-performance catalyst preparation for DRM reaction and its mechanism study gives a deep insight into high-performance catalyst development via bottom-up study.
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