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https://hdl.handle.net/1822/31937
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Campo DC | Valor | Idioma |
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dc.contributor.author | Figueiredo, Hugo | por |
dc.contributor.author | Silva, Bruna Andreia Nogueira Airosa | por |
dc.contributor.author | Kuzniarska-Biernacka, Iwona | por |
dc.contributor.author | Fonseca, A. Maurício C. | por |
dc.contributor.author | Medina, R. | por |
dc.contributor.author | Rasmussen, Soren B. | por |
dc.contributor.author | Bañares, M. A. | por |
dc.contributor.author | Neves, Isabel C. | por |
dc.contributor.author | Tavares, T. | por |
dc.date.accessioned | 2014-12-15T14:55:17Z | - |
dc.date.available | 2014-12-15T14:55:17Z | - |
dc.date.issued | 2014-07-01 | - |
dc.identifier.citation | Figueiredo, Hugo; Silva, Bruna; Kuzniarska-Biernacka, I.; Fonseca, A. M.; Medina, R.; Rasmussen, S.; Bañares, M. A.; Neves, I. C.; Tavares, T., Oxidation of cyclohexanol and cyclohexene with triazenido complexes of chromium immobilized in biosorption FAU supports. Chemical Engineering Journal, 247, 134-141, 2014 | por |
dc.identifier.issn | 1385-8947 | por |
dc.identifier.uri | https://hdl.handle.net/1822/31937 | - |
dc.description.abstract | This work presents the recovery of biosorption supports as an alternative source of benign production of heterogeneous catalysts for oxidation reactions in mild conditions. Cr-containing FAU zeolite, in sodium form (NaY) and in proton form (HY), was recovered from biosorption studies and reused as support for the preparation of heterogeneous catalysts by the flexible ligand method, using 1,3-diphenyltriazene derivatives. Results showed that the ligand play an important role in the coordination of Cr inside the zeolite. The catalysts showed good activity for the oxidation of cyclohexanol, reaching a maximum of 63.5% conversion. Cr leaching was evaluated and it was found that the Cr-FAU supports lost some of the Cr into the reaction medium, whereas immobilization of Cr-complexes reduced the referred leaching. For the cyclohexene oxidation, a maximum 72.9% conversion was achieved with a HY zeolite-based catalyst. | por |
dc.description.sponsorship | H. Figueiredo and B. Silva are thankful to the "FCT - Fundacao para a Ciencia e Tecnologia" for their respective research grants. IKB thanks FO' for the contract under the program Ciencia 2007. This work was partially funded by the Centre of Biological Engineering and the Centre of Chemistry (University of Minho, Portugal) through FCT strategic projects PEst-OE/EQB/LA0023/ 2013 and PEst-C/QUI/UI0686/2011 (nF-COMP-01-0124-FEDER022716), the Project "BioEnv - Biotechnology and Bioengineering for a sustainable world", REF. NORTE-07-0124-FEDER-000048, co-funded by the Programa Operacional Regional do Norte (ON.2 - 0 Novo Norte), QREN and FEDER, and by the Spanish Ministry of Science and Innovation (CTQ2008-04261/PPQ). | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier B.V. | por |
dc.rights | openAccess | por |
dc.subject | FAU zeolite | por |
dc.subject | Chromium | por |
dc.subject | 1,3-diphenyltriazenido ligands | por |
dc.subject | Heterogeneous catalyst | por |
dc.subject | Oxidation reactions | por |
dc.title | Oxidation of cyclohexanol and cyclohexene with triazenido complexes of chromium immobilized in biosorption FAU supports | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.comments | CEB17620 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 134 | por |
oaire.citationEndPage | 141 | por |
oaire.citationConferencePlace | Netherlands | - |
oaire.citationTitle | Biochemical Engineering Journal | por |
oaire.citationVolume | 247 | por |
dc.date.updated | 2014-11-28T17:57:00Z | - |
dc.identifier.eissn | 1385-8947 | - |
dc.identifier.doi | 10.1016/j.cej.2014.02.105 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Biochemical Engineering Journal | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_17620_1.pdf | 530,14 kB | Adobe PDF | Ver/Abrir |