Synthesis and Characterization of ZrO2/C as Electrocatalyst for Oxygen Reduction to H2O2

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dc.contributor.authorCarneiro, Jussara F.
dc.contributor.authorTrevelin, Leandro C.
dc.contributor.authorLima, Alex S.
dc.contributor.authorMeloni, Gabriel N.
dc.contributor.authorBertotti, Mauro
dc.contributor.authorHammer, Peter [UNESP]
dc.contributor.authorBertazzoli, Rodnei
dc.contributor.authorLanza, Marcos R. V.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-28T07:34:49Z
dc.date.available2018-11-28T07:34:49Z
dc.date.issued2017-05-01
dc.description.abstractElectrogeneration of hydrogen peroxide (H2O2) has potential application in advanced oxidation processes. Amorphous carbon is well known as catalyst for oxygen reduction reaction (ORR) through two-electron pathway. However, modification of the carbon can improve its selectivity for the H2O2 electrogeneration. In the present study, we investigated the properties of ZrO2 nanoparticles supported on carbon black (Printex L6) as electrocatalyst for H2O2 production in acidic medium. The catalytic activity of ZrO2/C for oxygen reduction to H2O2 is higher than the catalytic activity of treated carbon black. The highest selectivity of the ZrO2/C catalyst for H2O2 production is attributable to the presence of oxygenated functional groups on its surface and consequently increase of the surface hydrophilicity in comparison with treated carbon black. This surface effect leads to highest H2O2 electrogeneration, which is shown as a high current efficiency (I(H2O2)%). In fact, increased H2O2 yields from 74.5 to 84.2% were observed for the treated carbon black and ZrO2/C catalysts, respectively, whereas the I(H2O2)% for the unmodified carbon black was 65.3%. Furthermore, the modification of carbon by ZrO2 nanoparticles shifted the ORR half-wave potential towards ca. 137 mV, indicating lower energy consumption for producing H2O2. Thus, the ZrO2/C nanoparticles are shown to be promising electrocatalysts for environmental applications.en
dc.description.affiliationUniv Sao Paulo, Inst Quim Sao Carlos, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Fac Engn Mecan, Rua Mendeleyev 200, BR-13083860 Campinas, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Dept Quim Fundamental, Inst Quim, Ave Prof Lineu Prestes 748, BR-05508900 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, Rua Prof Franscisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, Rua Prof Franscisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 163689/2015-6
dc.description.sponsorshipIdCNPq: 160507/2011-1
dc.description.sponsorshipIdCNPq: 470079/2013-4
dc.description.sponsorshipIdFAPESP: 2011/14314-1
dc.description.sponsorshipIdFAPESP: 2016/01937-4
dc.format.extent189-195
dc.identifierhttp://dx.doi.org/10.1007/s12678-017-0355-0
dc.identifier.citationElectrocatalysis. New York: Springer, v. 8, n. 3, p. 189-195, 2017.
dc.identifier.doi10.1007/s12678-017-0355-0
dc.identifier.fileWOS000399162200002.pdf
dc.identifier.issn1868-2529
dc.identifier.lattes6466841023506131
dc.identifier.orcid0000-0002-3823-0050
dc.identifier.urihttp://hdl.handle.net/11449/165558
dc.identifier.wosWOS:000399162200002
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofElectrocatalysis
dc.relation.ispartofsjr0,994
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectZirconium oxide
dc.subjectOxygen reduction reaction
dc.subjectHydrogen peroxide
dc.subjectRotating ring-disc electrode
dc.subjectScanning electrochemical microscopy
dc.titleSynthesis and Characterization of ZrO2/C as Electrocatalyst for Oxygen Reduction to H2O2en
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes6466841023506131(6)
unesp.author.orcid0000-0001-9566-7577[5]
unesp.author.orcid0000-0002-3823-0050[6]

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