Strontium zirconate heterogeneous catalyst for biodiesel production: Synthesis, characterization and catalytic activity evaluation

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dc.contributor.authorde Oliveira Lima, Jose Renato [UNESP]
dc.contributor.authorGhani, Yussra Abdul [UNESP]
dc.contributor.authorda Silva, Rondenelly B.
dc.contributor.authorBatista, Francisco Marcos C.
dc.contributor.authorBini, Rafael Admar
dc.contributor.authorVaranda, Laudemir Carlos
dc.contributor.authorOliveira, Jose Eduardo de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)
dc.date.accessioned2014-05-20T14:21:13Z
dc.date.available2014-05-20T14:21:13Z
dc.date.issued2012-11-28
dc.description.abstractStrontium zirconate oxide was synthesized by co-precipitation and the citrate route and was evaluated as a heterogeneous catalyst for biodiesel production. The catalyst samples were characterized by XRD, FTIR, and TG, and catalytic activity was measured based on the ester content of the biodiesel produced that was quantified by GC. The co-precipitate samples were obtained in alkaline pH and had a mixture of the perovskite and pure strontium and zirconium oxide phases. Ester conversion using these samples was approximately 1.6%, indicating no catalytic activity. The citrate route was more efficient in producing perovskite when carried out at pH 7-8; excess SrCO3 was found on the catalyst surface due to CO2 adsorption, thus demonstrating no catalytic activity. The same synthesis carried out at pH 2 resulted in free OH- groups, with a small amount of the carbonate species that produced ester yield values of 98%. Therefore, matrices based on strontium zirconate produced via the citrate route in acidic media are potential heterogeneous catalysts for transesterification. (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.affiliationSão Paulo State Univ UNESP, Dept Organ Chem, Inst Chem, Ctr Monitoring & Res Qual Fuels Biofuels Crude Oi, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv São Paulo, Chem Inst São Carlos, Dept Phys Chem, Colloidal Mat Grp, BR-13560966 São Carlos, SP, Brazil
dc.description.affiliationPiaui Fed Univ UFPI, CCN, Dept Chem, BR-64049550 Teresina, PI, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Organ Chem, Inst Chem, Ctr Monitoring & Res Qual Fuels Biofuels Crude Oi, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipCEMPEQC
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipLIMAV
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.format.extent76-82
dc.identifierhttp://dx.doi.org/10.1016/j.apcata.2012.08.005
dc.identifier.citationApplied Catalysis A-general. Amsterdam: Elsevier B.V., v. 445, p. 76-82, 2012.
dc.identifier.doi10.1016/j.apcata.2012.08.005
dc.identifier.issn0926-860X
dc.identifier.lattes9352141379363877
dc.identifier.urihttp://hdl.handle.net/11449/26346
dc.identifier.wosWOS:000314079100009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofApplied Catalysis A: General
dc.relation.ispartofjcr4.521
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectStrontium zirconateen
dc.subjectCitrate routeen
dc.subjectHeterogeneous catalysten
dc.subjectBiodieselen
dc.titleStrontium zirconate heterogeneous catalyst for biodiesel production: Synthesis, characterization and catalytic activity evaluationen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes9352141379363877
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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