Chemometric approaches on glycerol oxidation with H2O2 over supported gold nanoparticles

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorNunes, Cleiton A.-
Autor(es): dc.creatorGuerreiro, Mário C.-
Data de aceite: dc.date.accessioned2026-02-09T11:29:07Z-
Data de disponibilização: dc.date.available2026-02-09T11:29:07Z-
Data de envio: dc.date.issued2014-12-04-
Data de envio: dc.date.issued2014-12-04-
Data de envio: dc.date.issued2013-01-11-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/4771-
Fonte completa do material: dc.identifierhttp://www.sciencedirect.com/science/article/pii/S1381116913000083-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1141763-
Descrição: dc.descriptionThis paper reports a chemometric study of effects of the catalyst preparation method and reaction con- ditions on the efficiency of glycerol oxidation catalyzed by gold nanoparticles supported on activated carbon using H 2 O 2 as oxidant. Factorial designs and principal component analysis were used for the evaluation of experimental conditions and reaction performance. Evaluating catalyst preparation condi- tions we found that larger Au nanoparticles are obtained using HAuCl 4 in higher concentration. Glycerol conversion and production of glycerate and tartronate were higher using catalysts prepared with low polyvinyl alcohol (PVA) to Au ratio and low Au content. Higher HAuCl 4 concentrations resulted in larger Au nanoparticles, which contributed to higher glycolate production. Evaluating reaction conditions we found that the influence of H 2 O 2 to glycerol ratio was insignificant. Glycerol conversion and production of glycerate and tartronate were higher at lower temperature. Increasing H 2 O 2 to glycerol ratio contributed to higher glycolate production. Glycerol to Au ratio has a smaller influence on the reaction course.-
Idioma: dc.languageen-
Direitos: dc.rightsacesso aberto-
???dc.source???: dc.sourceJournal of Molecular Catalysis. A: Chemical-
Palavras-chave: dc.subjectGlycerol-
Palavras-chave: dc.subjectGold nanoparticles-
Palavras-chave: dc.subjectCatalyst-
Palavras-chave: dc.subjectChemometrics-
Título: dc.titleChemometric approaches on glycerol oxidation with H2O2 over supported gold nanoparticles-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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