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Electroanalytical analysis of glassy carbon electrode modified with COOH- and NO2-functionalized polyspyrophosphazenes

dc.contributor.authorValenzuela M.L.
dc.contributor.authorCisternas R.
dc.contributor.authorJara-Ulloa P.
dc.contributor.authorRodriguez L.
dc.date.accessioned2020-09-02T22:29:53Z
dc.date.available2020-09-02T22:29:53Z
dc.date.issued2017
dc.identifier10.4067/S0717-97072017000200018
dc.identifier.citation62, 2, 3515-3518
dc.identifier.issn07179324
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6501
dc.descriptionGlassy carbon electrode modified with COOH- and NO2-functionalized polyspyrophosphazenes were used to study the redox process of a electroactive probe (ferrocene) in non-aqueous electrolyte. The electrochemical behavior of polyphosphazenes substituted with COOH and NO2 groups has been studied using cyclic voltammetry. Their blocking properties depend on the substituent group and on the substitution/nitration degree. The oxoreduction of the couple Fc/Fc+ occurs with rapid redox kinetic at the modified glassy carbon electrode with high nitration degree NO2-functionalized polyspyrophosphazene. The polymers were immobilized on the glassy carbon surface at different concentrations to study surface charge density effect. In this report were studied the reproducibility, repeatability and stability of the modified electrodes.
dc.language.isoen
dc.publisherSociedad Chilena de Quimica
dc.subjectBlocking effect
dc.subjectCyclic voltammetry
dc.subjectFerrocene
dc.subjectFunctionalized polyphosphazenes
dc.subjectModified electrode
dc.titleElectroanalytical analysis of glassy carbon electrode modified with COOH- and NO2-functionalized polyspyrophosphazenes
dc.typeArticle


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