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Mechanochemical Synthesis of CuO/MgAl2O4 and MgFe2O4 Spinels for Vanillin Production from Isoeugenol and Vanillyl Alcohol
dc.contributor.author | Rahmanivahid, Behgam | |
dc.contributor.author | Pinilla de Dios, María | |
dc.contributor.author | Haghighi, Mohammad | |
dc.contributor.author | Luque, Rafael | |
dc.date.accessioned | 2019-07-17T08:58:00Z | |
dc.date.available | 2019-07-17T08:58:00Z | |
dc.date.issued | 2019 | |
dc.identifier.uri | http://hdl.handle.net/10396/18866 | |
dc.description.abstract | CuO/MgAl2O4 and CuO/MgFe2O4 catalysts were successfully synthesized with the use of spinel supports by a very simple and low-cost mechanochemical method. High-speed ball-milling was used to synthesize these catalyst supports for the first time. Materials were subsequently characterized by using XRD, FESEM, TEM, EDS-Dot mapping, XPS, BET-BJH, and Magnetic Susceptibility to investigate the physical-chemical characteristics of the catalysts. Acidity evaluation results indicated that the catalyst with the Mg-Al spinel support had more acid sites. XRD results showed a successful synthesis of the catalysts with large crystal sizes. Both catalysts were used in isoeugenol oxidation and vanillyl alcohol to vanillin reactions, with the CuO/MgAl2O4 showing optimum results. This catalyst provided 67% conversion (74% selectivity) after 2 h and this value improved to 81% (selectivity 100%) with the second reaction after 8 h. The CuO/MgFe2O4 catalyst in the first reaction after five hours revealed 53% conversion (47% selectivity) and after eight hours with the second reaction, the conversion value improved to 64% (100% selectivity). In terms of reusability, CuO/MgAl2O4 showed better results than the CuO/MgFe2O4 catalyst, for both reactions. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Molecules 24(14), 2597 (2019) | es_ES |
dc.subject | High speed ball-milling | es_ES |
dc.subject | Mechanochemistry | es_ES |
dc.subject | Spinel | es_ES |
dc.subject | Vanillin | es_ES |
dc.subject | Vanillyl alcohol | es_ES |
dc.subject | Isoeugenol | es_ES |
dc.title | Mechanochemical Synthesis of CuO/MgAl2O4 and MgFe2O4 Spinels for Vanillin Production from Isoeugenol and Vanillyl Alcohol | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/molecules24142597 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |