Sugars Electrooxidation at Glassy Carbon Electrode Decorate with Multi-Walled Carbon Nanotubes with Nickel Oxy-Hydroxide

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-03-18T15:52:31Z
dc.date.available2015-03-18T15:52:31Z
dc.date.created2015-03-18T15:52:31Z
dc.date.issued2014-12-01
dc.identifierInternational Journal Of Electrochemical Science. Belgrade: Esg, v. 9, n. 12, p. 7746-7762, 2014.
dc.identifier1452-3981
dc.identifierhttp://hdl.handle.net/11449/116172
dc.identifierWOS:000345261900081
dc.identifier0072173018005712
dc.identifier4328309612941987
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 1.3x10(-6) cm(2) s(-1) and showed the higher electrocatalytic rate constant of 2.1x10(4) L mol(-1) s(-1). The modified electrode exhibited a linear response to sugars concentration in the range around of 2.5x10(-4) mol L-1 to 5.6x10(-3) mol L-1 and limits of detection around of 1.9x10(-4) mol L-1 -4.3x10(-4) mol L-1.
dc.languageeng
dc.publisherEsg
dc.relationInternational Journal Of Electrochemical Science
dc.relation1.369
dc.relation0,366
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectElectrocatalytic rate constant of sugars
dc.subjectKinetic parameters
dc.subjectNickel oxy-hydroxide
dc.subjectCarbon nanotubes
dc.subjectChemically modified electrodes
dc.titleSugars Electrooxidation at Glassy Carbon Electrode Decorate with Multi-Walled Carbon Nanotubes with Nickel Oxy-Hydroxide
dc.typeArtículos de revistas


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