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Voltammetric behavior of 3,5-dinitrobenzoic acid in solution on GCE and encapsulated on multiwalled carbon nanotube modified electrode

Authordc.contributor.authorMoscoso Cabello, Raúl 
Authordc.contributor.authorCarbajo, J. 
Authordc.contributor.authorMozo, J. D. 
Authordc.contributor.authorSquella Serrano, Juan 
Cita de ítemdc.identifier.citationJournal of Electroanalytical Chemistry 765 (2016) 149–154es_ES
Abstractdc.description.abstractThe cyclic voltammetric behavior of 3,5-dinitrobenzoic acid (3,5-DNB) in 0.1 M PBS of pH 7 was examined at a glassy carbon electrode (GCE). 3,5 -DNB was found to produce two irreversible reduction peaks corresponding to the reduction of each nitro group in the 3,5 -DNB molecule. Our results contradict previous studies (P. Gopal et al. Journal of Molecular Liquids 178 (2013) 168-174) wherein the same peaks are assigned as, the first, to the reduction of the nitro group to hydroxylamine and the second, to the subsequent reduction to amine derivative. Also we report that GCE modified with multiwalled carbon nanotubes (MWCNTs) can be derivatized with 3,5 DNB. The derivatization procedure involves simple immersion of the MWCNT-modified electrode in a solution containing 3,5 -DNB. SEM images reveal that the network of nanotubes form a homogeneous, twisted, densely packed, three-dimensional array that remains attached to the GCE surface. Both electrochemical and SEM measurements indicate that 3,5-DNB is encapsulated on the electrode, most probably by being trapped within the pockets of the mentioned three-dimensional array, without formation of covalent bonding.es_ES
Patrocinadordc.description.sponsorshipFONDECYT 1130160es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceJournal of Electroanalytical Chemistryes_ES
Keywordsdc.subject3,5-Dinitrobenzoic acides_ES
Keywordsdc.subjectModified electrodees_ES
Títulodc.titleVoltammetric behavior of 3,5-dinitrobenzoic acid in solution on GCE and encapsulated on multiwalled carbon nanotube modified electrodees_ES
Document typedc.typeArtículo de revistaes_ES
Indexationuchile.indexArtículo de publicación ISIes_ES

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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile