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Wu Y, Song P, Li N, Jiang Y, Liu Y. Molybdenum tailored Co0/Co2+ active pairs on a perovskite-type oxide for direct ethanol synthesis from syngas. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2023.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Nesterov N, Pakharukova V, Cherepanova S, Yakushkin S, Gerasimov E, Balaev D, Semenov S, Dubrovskii A, Martyanov O. Synthesis of Co-Ni Alloy Particles with the Structure of a Solid Substitution Solution by Precipitation in a Supercritical Carbon Dioxide. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4366. [PMID: 36558218 PMCID: PMC9782632 DOI: 10.3390/nano12244366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Mixed Co-Ni bimetallic systems with the structure of a solid substitution solution have been synthesized using the supercritical antisolvent precipitation (SAS) method, which uses supercritical CO2 as an antisolvent. The systems obtained have been characterized in detail using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Fourier-transform infrared (FTIR) spectroscopy, and magnetostatic measurements. It has been found that Co-enriched systems have a defective hexagonal close-packed (hcp) structure, which was described by a model which embedded cubic fragments of packaging into a hexagonal close-packed (hcp) structure. It has been shown that an increase in water content at the precipitation stage leads to a decrease in the size of cubic fragments and a more uniform distribution of them in Co-enriched systems. It has also been shown that mixed systems have the greatest coercivity in the line of samples. Ni-enriched bimetallic systems have a cubic close-packed (ccp) structure with modified crystal lattice parameters.
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Affiliation(s)
- Nikolay Nesterov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Vera Pakharukova
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Svetlana Cherepanova
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Stanislav Yakushkin
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Evgeniy Gerasimov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Dmitry Balaev
- Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russia
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Sergei Semenov
- Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russia
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Andrey Dubrovskii
- Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russia
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Oleg Martyanov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
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Mandal SC, Das A, Roy D, Das S, Nair AS, Pathak B. Developments of the heterogeneous and homogeneous CO2 hydrogenation to value-added C2+-based hydrocarbons and oxygenated products. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214737] [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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The effect of support on RhFe/Al2O3 for ethanol synthesis via CO hydrogenation. APPLIED PETROCHEMICAL RESEARCH 2021. [DOI: 10.1007/s13203-021-00277-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
AbstractDifferent alumina samples prepared with sol–gel, chemical precipitation and hydrothermal synthesis were used as supports of Fe-promoted Rh-based catalysts for ethanol synthesis via CO hydrogenation. The samples were characterized by means of N2-adsorpotion, XRD, H2-TPR, XPS, STEM, H2-TPD, DRIFTS, H2 and CO chemisorption. The results indicated that the Al2O3 prepared by hydrothermal synthesis exhibited nano-fiber morphology and constituted of mixed crystal phases, while Al2O3 prepared by sol–gel and chemical precipitation shows no changes of morphology and crystal phases compared with the commercial Al2O3. In addition, nano-fiber Al2O3-supported Rh-based catalyst shows higher ethanol selectivity, which is ascribed to the lower metal–support interaction, higher dispersion and stronger CO insertion ability.
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Damma D, Smirniotis PG. Recent advances in the direct conversion of syngas to oxygenates. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00813g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Direct synthesis of oxygenates from syngas is a promising way to utilize non-petroleum carbon resources because the oxygenate products serve as precursors for the downstream production of fuels and value-added chemicals.
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Affiliation(s)
- Devaiah Damma
- Chemical Engineering
- College of Engineering and Applied Science
- University of Cincinnati
- Cincinnati
- USA
| | - Panagiotis G. Smirniotis
- Chemical Engineering
- College of Engineering and Applied Science
- University of Cincinnati
- Cincinnati
- USA
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Huang C, Ma P, Wang R, Li W, Wang J, Li H, Tan Y, Luo L, Li X, Bao J. CuCo alloy nanonets derived from CuCo 2O 4 spinel oxides for higher alcohols synthesis from syngas. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01179k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous CuCo alloy nanonets were used as superior catalysts for higher alcohol synthesis from syngas. The catalyst was fabricated via structural topological transformation of CuCo2O4 spinel precursor.
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Affiliation(s)
- Chao Huang
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Peiyu Ma
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Ruyang Wang
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Wenjie Li
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Jingyan Wang
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Hongliang Li
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Yisheng Tan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Lei Luo
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Xu Li
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230029, Anhui, China
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