Reactivation of Ni-TiO2 Catalysts in Hydrogen Flow and in Supercritical 2-Propanol—Comparative Study by Electron Spin Resonance in situ Full article
| Journal |
Magnetic Resonance in Chemistry
ISSN: 0749-1581 , E-ISSN: 1097-458X |
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| Output data | Year: 2023, Volume: 61, Number: 11, Pages: 574-581 Pages count : 8 DOI: 10.1002/mrc.5385 | ||
| Tags | catalytic transfer hydrogenation; electron spin resonance; Ni nanoparticles; supercritical fluid; superparamagnetism | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 21-73-00244 |
Abstract:
Highly dispersed Ni-TiO2 catalyst has been studied in the process of preparation and under catalytic transfer hydrogenation reaction conditions in supercritical 2-propanol (250°C, 70 bar) using electron spin resonance in situ. Electron spin resonance in situ has been used to study the process of the catalyst passivation and subsequent reduction of the oxide layer in the gas flow. Reduction of the NiO layer on the surface of passivated Ni nanoparticles has been detected in supercritical 2-propanol, which is in agreement with kinetic modeling data. It has been found that the reduction of the nickel oxide layer in supercritical 2-propanol occurs at a lower temperature compared with the reduction in hydrogen flow, according to in situ electron spin resonance study.
Cite:
Kandarakova I.
, Yakushkin S.
, Nesterov N.
, Philippov A.
, Martyanov O.
Reactivation of Ni-TiO2 Catalysts in Hydrogen Flow and in Supercritical 2-Propanol—Comparative Study by Electron Spin Resonance in situ
Magnetic Resonance in Chemistry. 2023. V.61. N11. P.574-581. DOI: 10.1002/mrc.5385 WOS Scopus РИНЦ AN PMID OpenAlex
Reactivation of Ni-TiO2 Catalysts in Hydrogen Flow and in Supercritical 2-Propanol—Comparative Study by Electron Spin Resonance in situ
Magnetic Resonance in Chemistry. 2023. V.61. N11. P.574-581. DOI: 10.1002/mrc.5385 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
| Submitted: | Nov 24, 2022 |
| Accepted: | Jul 24, 2023 |
| Published online: | Sep 8, 2023 |
| Published print: | Nov 1, 2023 |
Identifiers:
| Web of science: | WOS:001082006100002 |
| Scopus: | 2-s2.0-85170374046 |
| Elibrary: | 54959393 |
| Chemical Abstracts: | 2023:1903968 |
| PMID: | 37681399 |
| OpenAlex: | W4386531328 |