Copper and lanthanum mixed oxides as catalysts for ethanol Guerbet coupling: The role of La3+ on the production of long-chain alcohols

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dc.contributor.authorPerrone, Olavo Micali [UNESP]
dc.contributor.authorSiqueira, Marcos Rechi [UNESP]
dc.contributor.authorMetzker, Gustavo [UNESP]
dc.contributor.authorde Oliveira Lisboa, Daniela Correa [UNESP]
dc.contributor.authorBoscolo, Mauricio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-06-25T11:05:50Z
dc.date.available2021-06-25T11:05:50Z
dc.date.issued2021-03-01
dc.description.abstractMixed oxides derived from the calcination of modified hydrotalcites precursors with copper and lanthanum were synthetized by the co-precipitation method and characterized and applied as catalysts for ethanol Guerbet coupling reactions. The oxides obtained were used to convert ethanol into 1-butanol and long-chain alcohols, mostly 1-hexanol. The selectivity for 1-butanol and 1-hexanol reached 62% and 10% for Cu-MgAl(O) at 280°C. The addition of 1 mol% of La3+ (CuLa-MgAl(O)) increased the number of basic sites comparing to Cu-MgAl(O) changing the selectivity for 1-butanol and 1-hexanol reaching 16.70 and 41.7% at 280°C. The addition of lanthanum and consequently the increase on the catalyst basicity was related to the obtainment of long-chain alcohols due to the enolate formation during the aldol condensation of Guerbet coupling.en
dc.description.affiliationSão Paulo State University (UNESP) Institute of Biosciences Humanities and Exact Sciences
dc.description.affiliationUnespSão Paulo State University (UNESP) Institute of Biosciences Humanities and Exact Sciences
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 1760327
dc.description.sponsorshipIdFAPESP: 2015/11588-4
dc.description.sponsorshipIdFAPESP: 2016/15575-7
dc.description.sponsorshipIdFAPESP: 2017/13230-5
dc.identifierhttp://dx.doi.org/10.1002/ep.13541
dc.identifier.citationEnvironmental Progress and Sustainable Energy, v. 40, n. 2, 2021.
dc.identifier.doi10.1002/ep.13541
dc.identifier.issn1944-7450
dc.identifier.issn1944-7442
dc.identifier.scopus2-s2.0-85093976436
dc.identifier.urihttp://hdl.handle.net/11449/208073
dc.language.isoeng
dc.relation.ispartofEnvironmental Progress and Sustainable Energy
dc.sourceScopus
dc.subject1-butanol
dc.subject1-hexanol
dc.subjectethanol
dc.subjectGuerbet coupling
dc.subjectlanthanum
dc.titleCopper and lanthanum mixed oxides as catalysts for ethanol Guerbet coupling: The role of La3+ on the production of long-chain alcoholsen
dc.typeArtigo
unesp.author.orcid0000-0003-0740-1862[1]

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