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Publicação:
Sugars electrooxidation at glassy carbon electrode decorate with multi-walled carbon nanotubes with nickel oxy-hydroxide

dc.contributor.authorde Sá, Acelino Cardoso [UNESP]
dc.contributor.authorPaim, Leonardo Lataro [UNESP]
dc.contributor.authorStradiotto, Nelson Ramos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:56:40Z
dc.date.available2018-12-11T16:56:40Z
dc.date.issued2014-01-01
dc.description.abstractThe glassy carbon electrode modified with carbon nanotubes decorated with nickel oxy-hydroxide (GC/MWCNT/NiOOH) was used to studied electro-oxidation of glucose, galactose, xylose, arabinose and mannose in alkaline medium. Kinetic parameters such as, charge-transfer coefficient, electrocatalytic rate constant and diffusion coefficient were determined for sugars. Galactose exhibited a higher charge-transfer coefficient (0.37) with a diffusion coefficient of 1.3×10-6 cm2 s-1 and showed the higher electrocatalytic rate constant of 2.1×104 L mol-1 s-1. The modified electrode exhibited a linear response to sugars concentration in the range around of 2.5×10-4 mol L-1 to 5.6×10-3 mol L-1 and limits of detection around of 1.9×10-4 mol L-1 - 4.3×10-4 mol L-1.en
dc.description.affiliationAnalytical Chemistry Department, Institute of Chemistry, UNESP - Univ Estadual Paulista, 55 Francisco Degni st
dc.description.affiliationEngineering of Energy, Experimental Campus of Rosana, UNESP - Univ Estadual Paulista, 1881 dos Barrageiros ave
dc.description.affiliationUnespAnalytical Chemistry Department, Institute of Chemistry, UNESP - Univ Estadual Paulista, 55 Francisco Degni st
dc.description.affiliationUnespEngineering of Energy, Experimental Campus of Rosana, UNESP - Univ Estadual Paulista, 1881 dos Barrageiros ave
dc.format.extent7746-7762
dc.identifier.citationInternational Journal of Electrochemical Science, v. 9, n. 12, p. 7746-7762, 2014.
dc.identifier.issn1452-3981
dc.identifier.lattes4328309612941987
dc.identifier.lattes0072173018005712
dc.identifier.scopus2-s2.0-84908691730
dc.identifier.urihttp://hdl.handle.net/11449/171703
dc.language.isoeng
dc.relation.ispartofInternational Journal of Electrochemical Science
dc.relation.ispartofsjr0,366
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCarbon nanotubes
dc.subjectChemically modified electrodes
dc.subjectElectrocatalytic rate constant of sugars
dc.subjectKinetic parameters
dc.subjectNickel oxy-hydroxide
dc.titleSugars electrooxidation at glassy carbon electrode decorate with multi-walled carbon nanotubes with nickel oxy-hydroxideen
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes4328309612941987
unesp.author.lattes0072173018005712
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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