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dc.contributor.author | Aubrecht, Jaroslav | es_ES |
dc.contributor.author | Pospelova, Violetta | es_ES |
dc.contributor.author | MARTINEZ FELIU, AGUSTIN | es_ES |
dc.contributor.author | Concepción Heydorn, Patricia | es_ES |
dc.contributor.author | Kikhtyanin, Oleg | es_ES |
dc.contributor.author | Straka, Petr | es_ES |
dc.contributor.author | Kubicka, David | es_ES |
dc.date.accessioned | 2023-06-23T18:01:54Z | |
dc.date.available | 2023-06-23T18:01:54Z | |
dc.date.issued | 2022-08-25 | es_ES |
dc.identifier.issn | 0926-860X | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/194507 | |
dc.description.abstract | [EN] Ester hydrogenolysis is industrially performed over Adkins catalysts. Their use is being restricted as they contain environmentally unfriendly Cr2O3. As a potential replacement, five co-precipitated CuZnAl catalysts with various Cu/Zn and Al/(Cu+Zn) atomic ratios were studied. The structure transformation during the whole catalyst lifecycle was determined. The catalyst precursors consisted of CuZnAl-hydrotalcite (HTC). Although the Cu/Zn ratio did not affect the HTC structure, an increase in Al content resulted in smaller Cu nanoparticles with a larger surface area. In the reduced catalysts, both Cu+ and Cu0 species were identified using FTIR-CO. XPS revealed catalyst surface reconstruction after catalyst reduction and catalytic reaction. The evaluation of the catalysts in dimethyl adipate hydrogenolysis indicated that the catalyst having the lowest Cu loading possessed the highest activity, due to its high SCu and Cu/Zn = 1. Generally, higher activity was achieved by reducing the Cu/Zn and increasing the Al/(Cu+Zn) ratios. | es_ES |
dc.description.sponsorship | Financial support from Czech Science Foundation (project No. GA17-05704S and GA20-28093S) is greatly acknowledged. The cata- lyst precursors were prepared with support of CATPRO infrastructure. Experimental results were accomplished by using Large Research Infrastructure ENREGAT supported by the Ministry of Education, Youth and Sports of the Czech Republic under project no. LM2018098. P.C. and A.M. acknowledge financial support from the Spanish Government through the RTI2018-099668-B-C21 and RTI2018-102161 projects. The authors are grateful to the Microscopy Service of the Universitat Polite ` cnica de Vale ` ncia (UPV) for assistance in microscopy characterization. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Applied Catalysis A General | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Copper | es_ES |
dc.subject | Zinc,Hydrotalcite | es_ES |
dc.subject | Ester hydrogenolysis | es_ES |
dc.subject | Dimethyl adipate | es_ES |
dc.title | CuZnAl hydrotalcites as suitable precursors for chromium-free ester hydrogenolysis catalysts | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.apcata.2022.118811 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099668-B-C21/ES/VALORIZACION DE CO2: CAPTURA, Y TRANSFORMACION CATALITICA PARA ALMACENAMIENTO DE ENERGIA, COMBUSTIBLES Y PRODUCTOS QUIMICOS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MEYS//LM2018098/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-102161-B-I00/ES/CONVERSION DIRECTA DE CO2 EN PORTADORES DE ENERGIA QUIMICA UTILIZANDO REACTORES ELECTROCATALITICOS DE MEMBRANA/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GACR//GA17 05704S/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GACR//GA20 28093S/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.description.bibliographicCitation | Aubrecht, J.; Pospelova, V.; Martinez Feliu, A.; Concepción Heydorn, P.; Kikhtyanin, O.; Straka, P.; Kubicka, D. (2022). CuZnAl hydrotalcites as suitable precursors for chromium-free ester hydrogenolysis catalysts. Applied Catalysis A General. 644:1-11. https://doi.org/10.1016/j.apcata.2022.118811 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.apcata.2022.118811 | es_ES |
dc.description.upvformatpinicio | 1 | es_ES |
dc.description.upvformatpfin | 11 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 644 | es_ES |
dc.relation.pasarela | S\484874 | es_ES |
dc.contributor.funder | MINECO | es_ES |
dc.contributor.funder | Agencia Estatal de Investigación | es_ES |
dc.contributor.funder | Grant Agency of the Czech Republic | es_ES |
dc.contributor.funder | Ministry of Education, Youth and Sport of the Czech Republic | es_ES |