Synthesis of Catalytic Precursors Based on Mixed Ni-Al Oxides by Supercritical Antisolvent Co-Precipitation Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2022, Volume: 12, Number: 12, Article number : 1597, Pages count : 15 DOI: 10.3390/catal12121597 | ||
| Tags | supercritical antisolvent; heterogeneous catalysts; green chemistry; nickel catalyst; mixed oxides | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0003 |
Abstract:
Mixed Ni-Al oxide catalytic precursors with different elemental ratios (20, 50, and 80 wt.% Ni0) were synthesized using green supercritical antisolvent co-precipitation (SAS). The obtained oxide precursors and metal catalysts were characterized in detail by X-ray diffraction (XRD) analysis, atomic pair distribution function (PDF) analysis, CO adsorption, and high-resolution transmission electron microscopy (HRTEM). It was found that the composition and structure of the Ni-Al precursors are related to the Ni content. The mixed Ni1−xAlxO oxide with NiO-based crystal structure was formed in the Ni-enriched sample, whereas the highly dispersed NiAl2O4 spinel was observed in the Al-enriched sample. The obtained metal catalysts were tested in the process of anisole H2-free hydrogenation. 2-PrOH was used as a hydrogen donor. The catalyst with 50 wt.% Ni0 demonstrated the highest activity in the hydrogenation process.
Cite:
Nesterov N.S.
, Pakharukova V.P.
, Philippov A.A.
, Gerasimov E.Y.
, Tsybulya S.V.
, Martyanov O.N.
Synthesis of Catalytic Precursors Based on Mixed Ni-Al Oxides by Supercritical Antisolvent Co-Precipitation
Catalysts. 2022. V.12. N12. 1597 :1-15. DOI: 10.3390/catal12121597 WOS Scopus РИНЦ AN OpenAlex
Synthesis of Catalytic Precursors Based on Mixed Ni-Al Oxides by Supercritical Antisolvent Co-Precipitation
Catalysts. 2022. V.12. N12. 1597 :1-15. DOI: 10.3390/catal12121597 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Oct 28, 2022 |
| Accepted: | Dec 3, 2022 |
| Published print: | Dec 6, 2022 |
| Published online: | Dec 6, 2022 |
Identifiers:
| Web of science: | WOS:000902299700001 |
| Scopus: | 2-s2.0-85144851742 |
| Elibrary: | 53422351 |
| Chemical Abstracts: | 2023:44184 |
| OpenAlex: | W4311851610 |