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Othman A, Gowda A, Andreescu D, Hassan MH, Babu SV, Seo J, Andreescu S. Two decades of ceria nanoparticle research: structure, properties and emerging applications. MATERIALS HORIZONS 2024; 11:3213-3266. [PMID: 38717455 DOI: 10.1039/d4mh00055b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Cerium oxide nanoparticles (CeNPs) are versatile materials with unique and unusual properties that vary depending on their surface chemistry, size, shape, coating, oxidation states, crystallinity, dopant, and structural and surface defects. This review encompasses advances made over the past twenty years in the development of CeNPs and ceria-based nanostructures, the structural determinants affecting their activity, and translation of these distinct features into applications. The two oxidation states of nanosized CeNPs (Ce3+/Ce4+) coexisting at the nanoscale level facilitate the formation of oxygen vacancies and defect states, which confer extremely high reactivity and oxygen buffering capacity and the ability to act as catalysts for oxidation and reduction reactions. However, the method of synthesis, surface functionalization, surface coating and defects are important factors in determining their properties. This review highlights key properties of CeNPs, their synthesis, interactions, and reaction pathways and provides examples of emerging applications. Due to their unique properties, CeNPs have become quintessential candidates for catalysis, chemical mechanical planarization (CMP), sensing, biomedical applications, and environmental remediation, with tremendous potential to create novel products and translational innovations in a wide range of industries. This review highlights the timely relevance and the transformative potential of these materials in addressing societal challenges and driving technological advancements across these fields.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Akshay Gowda
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - Mohamed H Hassan
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - S V Babu
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Jihoon Seo
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
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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. Dry Reforming of Methane over 5%Ni/Ce 1-xTi xO 2 Catalysts Obtained via Synthesis in Supercritical Isopropanol. Int J Mol Sci 2023; 24:ijms24119680. [PMID: 37298629 DOI: 10.3390/ijms24119680] [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: 04/24/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
A series of 5%Ni/Ce1-xTixO2 catalysts was prepared with nickel impregnation of mixed Ce-Ti oxides obtained via synthesis in supercritical isopropanol. All oxides have a cubic fluorite phase structure. Ti is incorporated into the fluorite structure. Small amounts of impurities of TiO2 or mixed Ce-Ti oxides appear with Ti introduction. Supported Ni is presented as the NiO or NiTiO3 perovskite phase. Ti introduction increases total samples reducibility and results in stronger interaction of supported Ni with the oxide support. The fraction of rapidly replaced oxygen and the average tracer diffusion coefficient also increase. The number of metallic nickel sites decreased with increasing Ti content. All catalysts except Ni-CeTi0.45 demonstrate close activity in tests of dry reforming of methane. The lower activity of Ni-CeTi0.45 can be connected to Ni decoration with species of the oxide support. The incorporation of Ti prevents detachment of Ni particles from the surface and their sintering during dry reforming of methane.
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Affiliation(s)
- Ekaterina Smal
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Yulia Bespalko
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Marina Arapova
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Valeria Fedorova
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Konstantin Valeev
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Nikita Eremeev
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Ekaterina Sadovskaya
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Tamara Krieger
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Tatiana Glazneva
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Vladislav Sadykov
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
| | - Mikhail Simonov
- Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
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Bespalko YN, Fedorova VE, Smal EA, Arapova MV, Valeev KR, Krieger TA, Ishchenko AV, Sadykov VA, Simonov MN. Ni and Ni–Co Catalysts Based on Mixed Ce–Zr Oxides Synthesized in Isopropanol Medium for Dry Reforming of Methane. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122080048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Pushkar AP, Varghese JJ. Impact of surface-active site heterogeneity and surface hydroxylation in Ni doped ceria catalysts on oxidative dehydrogenation of propane. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Bimetallic Cu-Pt catalysts over nanoshaped ceria for hydrogen production via methanol decomposition. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Modragón-Galicia G, Toledo Toledo M, Morales-Anzures F, Salinas-Hernández P, Gutiérrez-Martínez A, García MEF, Tzompantzi F, Barrera A, Reyna-Alvarado J, López-Galán OA, Ramos M, Pérez-Hernández R. Catalytic Aspects of Pt/Pd Supported on ZnO Rods for Hydrogen Production in Methanol Steam Reforming. Top Catal 2022. [DOI: 10.1007/s11244-022-01633-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jomjaree T, Sintuya P, Srifa A, Koo-amornpattana W, Kiatphuengporn S, Assabumrungrat S, Sudoh M, Watanabe R, Fukuhara C, Ratchahat S. Catalytic performance of Ni catalysts supported on CeO2 with different morphologies for low-temperature CO2 methanation. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mosinska M, Maniukiewicz W, Szynkowska-Jozwik MI, Mierczynski P. The Effect of Modifiers on the Performance of Ni/CeO 2 and Ni/La 2O 3 Catalysts in the Oxy-Steam Reforming of LNG. Int J Mol Sci 2021; 22:ijms22169076. [PMID: 34445779 PMCID: PMC8396481 DOI: 10.3390/ijms22169076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/01/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
This work interrogates for the first time the catalytic properties of various monometallic Ni catalysts in the oxy-steam reforming of LNG. Various research techniques, including X-ray diffraction (XRD), specific surface area and porosity analysis (BET method), scanning electron microscopy with X-ray microanalysis (SEM-EDS), temperature-programmed desorption of ammonia (TPD-NH3), temperature-programmed reduction (TPR-H2) and the FTIR method, were used to study their physicochemical properties. The mechanism of the oxy-steam reforming of LNG is also discussed in this paper. The high activity of monometallic catalysts supported on 5% La2O3-CeO2 and 5% ZrO2-CeO2 oxides in the studied process have been proven and explained on the basis of their acidity, specific surface area, sorption properties in relation to the reaction products, the crystallite size of the metallic nickel and their phase composition.
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Catalytic performance of Ni/CeO2 catalysts prepared from different routes for CO2 methanation. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Greluk M, Gac W, Rotko M, Słowik G, Turczyniak-Surdacka S. Co/CeO2 and Ni/CeO2 catalysts for ethanol steam reforming: Effect of the cobalt/nickel dispersion on catalysts properties. J Catal 2021. [DOI: 10.1016/j.jcat.2020.11.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Lugo VR, Mondragón-Galicia G, Gutiérrez-Martínez A, Gutiérrez-Wing C, Rosales González O, López P, Salinas-Hernández P, Tzompantzi F, Reyes Valderrama MI, Pérez-Hernández R. Pt-Ni/ZnO-rod catalysts for hydrogen production by steam reforming of methanol with oxygen. RSC Adv 2020; 10:41315-41323. [PMID: 35516527 PMCID: PMC9057812 DOI: 10.1039/d0ra06181f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/03/2020] [Indexed: 12/02/2022] Open
Abstract
Ni, Pt and a mixture of Ni and Pt supported on ZnO-rods were evaluated in autothermal steam reforming of methanol (ASRM) for hydrogen production as a function of the reaction temperature. The catalytic materials were characterized by SEM-EDS, XRD, TEM, HRTEM, TPR and BET. Analysis by SEM and TEM showed structural modifications on the surface of the ZnO rods after Ni impregnation. The reactivity of the catalytic materials in the range of 200–500 °C showed that the bimetallic sample had better catalytic activity among all the catalysts studied. This finding could be associated to PtZn and NiZn alloys present in this catalyst, which were identified by XRD and HRTEM analyses. Catalyst characterization by XRD after the catalytic testing showed that the intermetallic PtZn phase was stable during the reaction in the Pt/ZnO-rod sample. The cubic Ni0.75–Zn0.25 structure identified in the Ni/ZnO-rod sample was transformed to Zn0.1–Ni0.9–O and metallic Ni phases, respectively. On the bimetallic PtNi/ZnO-rod sample, the cubic Ni0.75–Zn0.25 structure remained, although the tetragonal NiZn structure is unstable and was destroyed during the ASRM reaction and then a new phase of Ni0.7Pt0.3 emerged. The promotion effect of Pt and/or Ni on the ZnO-rod was clearly shown. PtZn and NiZn alloys on ZnO-1D samples were evaluated in the ASRM. Bifunctional behavior between PtZn, NiZn alloys and the ZnO were reported. The ZnO provides the adsorption sites for the reagents and the alloy particles facilitate the H2 transfer.![]()
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Affiliation(s)
- Ventura Rodríguez Lugo
- Universidad Autónoma del Estado de Hidalgo, Área Académica de Ciencias de la Tierra y Materiales Carr. Pachuca - Tulancingo km. 4.5 C.P. 42184 Pachuca Hidalgo Mexico
| | - Gilberto Mondragón-Galicia
- Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa Ocoyoacac Edo. de Mexico C. P. 52750 Mexico
| | - Albina Gutiérrez-Martínez
- Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa Ocoyoacac Edo. de Mexico C. P. 52750 Mexico
| | - Claudia Gutiérrez-Wing
- Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa Ocoyoacac Edo. de Mexico C. P. 52750 Mexico
| | - Omar Rosales González
- Universidad Autónoma del Estado de Hidalgo, Área Académica de Ciencias de la Tierra y Materiales Carr. Pachuca - Tulancingo km. 4.5 C.P. 42184 Pachuca Hidalgo Mexico
| | - Pavel López
- Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa Ocoyoacac Edo. de Mexico C. P. 52750 Mexico
| | - Pastora Salinas-Hernández
- Instituto de Estudios de la Energía, Universidad del Istmo-Campus Tehuantepec Santo Domingo Tehuantepec Oaxaca C.P. 70760 Mexico
| | - Francisco Tzompantzi
- Depto. de Química, Area de Catalisis, Universidad Autonoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX 09340 Mexico
| | - María I Reyes Valderrama
- Universidad Autónoma del Estado de Hidalgo, Área Académica de Ciencias de la Tierra y Materiales Carr. Pachuca - Tulancingo km. 4.5 C.P. 42184 Pachuca Hidalgo Mexico
| | - Raúl Pérez-Hernández
- Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa Ocoyoacac Edo. de Mexico C. P. 52750 Mexico
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Lara-García HA, Araiza DG, Méndez-Galván M, Tehuacanero-Cuapa S, Gómez-Cortés A, Díaz G. Dry reforming of methane over nickel supported on Nd-ceria: enhancement of the catalytic properties and coke resistance. RSC Adv 2020; 10:33059-33070. [PMID: 35515038 PMCID: PMC9056702 DOI: 10.1039/d0ra05761d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/28/2020] [Indexed: 11/21/2022] Open
Abstract
Nickel (5 wt%) supported on Nd-doped ceria was studied as catalysts in the DRM reaction at stoichiometric conditions in the range of 600-800 °C. Ce1-x Nd x O2-δ supports with different Nd contents (x = 0, 0.05, 0.1 and 0.2) were successfully synthesized. The role of oxygen vacancies by the incorporation of Nd3+ into the ceria lattice was investigated. These species were quantified by XRD and Raman spectroscopy, showing a linear dependence as a function of Nd content. Ni/Nd-ceria catalysts were prepared by wet impregnation. Although formation of oxygen vacancies, as well as microstructural features of the support (smaller crystallite sizes, higher surface area, and developed mesoporous structure) were improved as a function of the Nd content, no significant differences were observed in the catalytic properties of Ni/Nd-ceria in the DRM reaction. Despite this, compared to undoped ceria, all the Nd-doped CeO2 catalysts present an enhanced activity and stability, and the best catalytic performance was observed in the Ni/Ce0.95Nd0.05O2-δ sample. Quantification of carbon residues in spent catalysts showed, as expected, lower amounts in the Ni/Nd-ceria samples; nevertheless, among them, the catalyst with the higher amount of oxygen vacancies, is the one with the higher carbon residues. Incorporation of Nd in ceria changes the acid/base properties, diminishing the gasification capacity of the carbonaceous species. These results emphasize that the activity and stability in the Ni/Nd-ceria catalysts for the DRM reaction depend on two key factors, the redox and the acid/base properties of the CeO2 supports, offering insights about the necessary and adequate balance between these properties.
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Affiliation(s)
- Hugo A Lara-García
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
| | - Daniel G Araiza
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
| | - Melissa Méndez-Galván
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
| | - Samuel Tehuacanero-Cuapa
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
| | - Antonio Gómez-Cortés
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
| | - Gabriela Díaz
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20364 CDMX 01000 Mexico
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Matus EV, Ismagilov IZ, Ushakov VA, Nikitin AP, Stonkus OA, Gerasimov EY, Kerzhentsev MA, Bharali P, Ismagilov ZR. GENESIS AND STRUCTURAL PROPERTIES
OF (Ce1–xMx0.8Ni0.2Oy (M = La, Mg) OXIDES. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620070100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Lyu Y, Jocz J, Xu R, Stavitski E, Sievers C. Nickel Speciation and Methane Dry Reforming Performance of Ni/CexZr1–xO2 Prepared by Different Synthesis Methods. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02426] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yimeng Lyu
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jennifer Jocz
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Rui Xu
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Eli Stavitski
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol. ENERGIES 2020. [DOI: 10.3390/en13143728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of 5%Ni-CexZr1−xO2 (x = 0.3, 0.5, 0.7) catalysts has been prepared via one-pot solvothermal continuous synthesis in supercritical isopropanol and incipient wetness impregnation of CexZr1−xO2 obtained by the same route. The textural, structural, red-ox, and catalytic properties in methane dry reforming (MDR) of Ni-modified Ce-Zr oxides synthesized by two routes have been compared. It was shown by XRD, TEM, and Raman spectroscopy that the method of Ni introduction does not affect the phase composition of the catalysts, but determines the dispersion of NiO. Despite a high dispersion of NiO and near-uniform distribution of Ni within Ce-Zr particles observed for the one-pot catalysts, they have shown a lower activity and stability in MDR as compared with impregnated ones. This is a result of a low Ni concentration in the surface layer due to segregation of Ce and decoration of nickel nanoparticles with support species.
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Novel Ni/Ce(Ti)ZrO2 Catalysts for Methane Dry Reforming Prepared in Supercritical Alcohol Media. ENERGIES 2020. [DOI: 10.3390/en13133365] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria–zirconia doped by Ti were investigated as supports. Ceria–zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600–750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2−δ composition due to optimized oxide support structure and support oxygen mobility.
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Nickel-Containing Ceria-Zirconia Doped with Ti and Nb. Effect of Support Composition and Preparation Method on Catalytic Activity in Methane Dry Reforming. NANOMATERIALS 2020; 10:nano10071281. [PMID: 32629866 PMCID: PMC7407892 DOI: 10.3390/nano10071281] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 11/17/2022]
Abstract
Nickel-containing mixed ceria-zirconia oxides also doped by Nb and Ti have been prepared by a citrate route and by original solvothermal continuous flow synthesis in supercritical alcohols. Nickel was subsequently deposited by conventional insipient wetness impregnation. The oxides are comprised of ceria-zirconia solid solution with cubic fluorite phase. Negligible amounts of impurities of zirconia are observed for samples prepared by citrate route and doped by Ti. Supports prepared by supercritical synthesis are single-phased. XRD data, Raman, and UV-Vis DR (diffuse reflectance) spectroscopy suggest increasing lattice parameter and amount of oxygen vacancies in fluorite structure after Nb and Ti incorporation despite of the preparation method. These structural changes correlate with the catalytic activity in a methane dry reforming reaction. Catalysts synthesized under supercritical conditions are more active than the catalysts of the same composition prepared by the citrate route. The catalytic activity of samples doped with Ti and Nb is two times higher in terms of TOF (turnover frequency) and increased stability of these catalysts is attributed with the highest oxygen mobility being crucial for gasification of coke precursors.
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Romero-Núñez A, Gómez-Cortés A, Tiznado H, Díaz G. Ni-doped ceria nanorods for the WGS reaction: Effect of Ni distribution in methane suppression. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Araiza DG, Gómez-Cortés A, Díaz G. Effect of ceria morphology on the carbon deposition during steam reforming of ethanol over Ni/CeO2 catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Matus EV, Shlyakhtina AS, Sukhova OB, Ismagilov IZ, Ushakov VA, Yashnik SA, Nikitin AP, Bharali P, Kerzhentsev MA, Ismagilov ZR. Effect of Preparation Methods on the Physicochemical and Functional Properties of Ni/CeO2 Catalysts. KINETICS AND CATALYSIS 2019. [DOI: 10.1134/s002315841902006x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhang X, You R, Li D, Cao T, Huang W. Reaction Sensitivity of Ceria Morphology Effect on Ni/CeO 2 Catalysis in Propane Oxidation Reactions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35897-35907. [PMID: 28945332 DOI: 10.1021/acsami.7b11536] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CeO2 nanocubes (c-CeO2), nanoparticles (p-CeO2), and nanorods calcined at 500 °C (r-CeO2-500) and 700 °C (r-CeO2-700) were used as supports to synthesize a series of Ni/CeO2 catalysts for the propane combustion and oxidative dehydrogenation of propane (ODHP) reactions. The Ni-CeO2 interaction greatly promotes the reducibility of CeO2, but CeO2 morphology-dependent Ni-CeO2 interaction was observed to form different speciation of Ni species (Ni2+ dissolved in CeO2, highly dispersive NiO, NiO aggregate) and oxygen species (strongly activated oxygen species, medially activated oxygen species, weakly activated oxygen species) in various Ni/CeO2 catalysts. Ni-CeO2 interaction is stronger in Ni/c-CeO2 catalysts than in other Ni/CeO2 catalysts. Different morphology-dependences of Ni/CeO2 catalysts in propane combustion and ODHP reactions were observed. The Ni/r-CeO2-500 catalyst with the largest strongly activated oxygen species is most catalytic active in the propane combustion reaction while the Ni/c-CeO2 catalyst with the largest amount of weakly activated oxygen species exhibits the best catalytic performance in the ODHP reaction. Thus, the CeO2 morphology engineering strategy is effective in finely tuning the metal-CeO2 interaction and the reactivity of oxygen species to meet the requirements of different types of catalytic oxidation reactions.
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Affiliation(s)
- Xuanyu Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China , Hefei 230026, P. R. China
| | - Rui You
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China , Hefei 230026, P. R. China
| | - Dan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China , Hefei 230026, P. R. China
| | - Tian Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China , Hefei 230026, P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China , Hefei 230026, P. R. China
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Araiza DG, Gómez-Cortés A, Díaz G. Partial oxidation of methanol over copper supported on nanoshaped ceria for hydrogen production. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.055] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Li WQ, Goverapet Srinivasan S, Salahub DR, Heine T. Ni on the CeO2(110) and (100) surfaces: adsorption vs. substitution effects on the electronic and geometric structures and oxygen vacancies. Phys Chem Chem Phys 2016; 18:11139-49. [DOI: 10.1039/c6cp00738d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report density functional theory (DFT) calculations of the interactions of both Ni adsorbate and substitutional dopant with the ceria (110) and (100) surfaces to explain the origin of the activity of Ni/ceria catalysts.
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Affiliation(s)
- W. Q. Li
- Department of Chemistry
- Centre for Molecular Simulation and Institute for Quantum Science and Technology
- University of Calgary
- Canada
- Department of Physics and Earth Science
| | - S. Goverapet Srinivasan
- Department of Chemistry
- Centre for Molecular Simulation and Institute for Quantum Science and Technology
- University of Calgary
- Canada
| | - D. R. Salahub
- Department of Chemistry
- Centre for Molecular Simulation and Institute for Quantum Science and Technology
- University of Calgary
- Canada
| | - T. Heine
- Department of Physics and Earth Science
- Jacobs University Bremen
- 28759 Bremen
- Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie
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