CuCoMgAlOx Mixed Oxides as Selective Catalysts for the Hydrogenation of Furan Compounds Full article
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Hydrogen
ISSN: 2673-4141 |
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| Output data | Year: 2023, Volume: 4, Number: 3, Pages: 644-657 Pages count : 14 DOI: 10.3390/hydrogen4030041 | ||
| Tags | furfural; 5-hydroxymethylfurfural; cobalt; copper; layered hydroxides; mixed oxides | ||
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Abstract:
Single phase CuCoMgAl-layered hydroxides were obtained by making fine adjustment to their composition through changing the (Co + Cu)/Mg = 0.5; 1; 2; 3 and Co/Cu = 0.5; 1; 2 ratios. The rise of Co/Cu in systems contributed to the increase in their thermal stability. CuCoMgAl-catalysts showed high selectivity of carbonyl group hydrogenation in furfural and 5-hydroxymethylfurfural. In furfural hydrogenation, the selectivity to furfuryl alcohol was more than 99%, and in 5-hydroxymethylfurfural hydrogenation, the selectivity to 2,5-hydroxymethyl furfural was 95%. The surface of the samples with different Co/Cu after calcination and reduction was the same and had a «core-shell» structure (TEM). «Core» consisted of Cu and Co metallic particles. «Shell» consisted of CuCoMgAlOx mixed no-stoichiometric spinel oxides. There was no sintering or change in size of the metallic particles after the reaction. For the sample with Co/Cu = 1, their phase composition after reaction remained unchangeable. The increase of Co/Cu led to the formation of an X-ray amorphous phase after the reaction. This suggests the decrease in structural stability of this sample. The obtained results prove the prospects of using bimetallic CoCu-systems for hydrogenation of furan aldehydes, and opens up new directions for further research and improvement.
Cite:
Kobzar E.O.
, Stepanova L.N.
, Nepomniashchii A.A.
, Vasilevich A.V.
, Gulyaeva T.I.
, Trenikhin M.V.
, Lavrenov A.V.
CuCoMgAlOx Mixed Oxides as Selective Catalysts for the Hydrogenation of Furan Compounds
Hydrogen. 2023. V.4. N3. P.644-657. DOI: 10.3390/hydrogen4030041 WOS РИНЦ AN OpenAlex
CuCoMgAlOx Mixed Oxides as Selective Catalysts for the Hydrogenation of Furan Compounds
Hydrogen. 2023. V.4. N3. P.644-657. DOI: 10.3390/hydrogen4030041 WOS РИНЦ AN OpenAlex
Dates:
| Submitted: | Jul 17, 2023 |
| Accepted: | Sep 5, 2023 |
| Published print: | Sep 8, 2023 |
| Published online: | Sep 8, 2023 |
Identifiers:
| Web of science: | WOS:001199308700001 |
| Elibrary: | 64423313 |
| Chemical Abstracts: | 2023:2065238 |
| OpenAlex: | W4386547072 |