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Study of the Synthetic Approach Influence in Ni/CeO2-Based Catalysts for Methane Dry Reforming. REACTIONS 2022. [DOI: 10.3390/reactions3040043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This study focuses on the synthetic approach influence in morphostructural features and catalytic performances for Ni/CeO2 catalysts. Incipient wetness impregnation, coprecipitation and nitrate combustion were studied as catalyst preparation approaches, and the materials were then tested at 700 °C for methane dry reforming (MDR). The morphostructural properties of the materials were deeply studied using several techniques, such as temperature programmed reduction (TPR), to investigate reducibility and support-metal interaction, N2 physisorption to evaluate the porosity and the surface area, scanning electron microscopy (SEM) and X-ray diffraction (XRD) to estimate Ni dispersion, and temperature programmed oxidation (TPO) to identify the type and amount of coke formed on catalysts’ surface after reaction. From the data obtained, coprecipitation turned out to be the most suitable technique for this application because this catalyst was able to reach 70% of CO2 conversion and 30% methane conversion, with an H2 yield of 15% and 30% yield of CO at the end of the 30 h test. Moreover, it was also the catalyst with the highest metal dispersion, the strongest interaction with the support, and the lowest coke deposition.
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Grabchenko MV, Dorofeeva NV, Lapin IN, La Parola V, Liotta LF, Vodyankina OV. Study of Nickel Catalysts Supported on MnOx–CeO2 Mixed Oxides in Dry Reforming of Methane. KINETICS AND CATALYSIS 2022. [DOI: 10.1134/s0023158421060069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bychkov VY, Tulenin YP, Gorenberg AY, Korchak VN. Investigation of Nickel Surface Layers Formed in the Course of Self-Oscillatory Methane Oxidation. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421010018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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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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Matus EV, Nefedova DV, Sukhova OB, Ismagilov IZ, Ushakov VA, Yashnik SA, Nikitin AP, Kerzhentsev MA, Ismagilov ZR. Formation and Properties of Ni–Ce–La–O Catalysts of Reforming. KINETICS AND CATALYSIS 2019. [DOI: 10.1134/s0023158419040074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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