ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES

Glassy 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...

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Autores principales:	VALENZUELA,MARIA LUISA, CISTERNAS,REGINA, JARA-ULLOA,PAOLA, RODRIGUEZ,LISSETTE
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2017
Materias:	functionalized polyphosphazenes modified electrode cyclic voltammetry blocking effect ferrocene
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200018
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spelling	oai:scielo:S0717-970720170002000182017-06-30ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENESVALENZUELA,MARIA LUISACISTERNAS,REGINAJARA-ULLOA,PAOLARODRIGUEZ,LISSETTE functionalized polyphosphazenes modified electrode cyclic voltammetry blocking effect ferrocene Glassy 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.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.62 n.2 20172017-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200018en10.4067/S0717-97072017000200018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	functionalized polyphosphazenes modified electrode cyclic voltammetry blocking effect ferrocene
spellingShingle	functionalized polyphosphazenes modified electrode cyclic voltammetry blocking effect ferrocene VALENZUELA,MARIA LUISA CISTERNAS,REGINA JARA-ULLOA,PAOLA RODRIGUEZ,LISSETTE ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
description	Glassy 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.
author	VALENZUELA,MARIA LUISA CISTERNAS,REGINA JARA-ULLOA,PAOLA RODRIGUEZ,LISSETTE
author_facet	VALENZUELA,MARIA LUISA CISTERNAS,REGINA JARA-ULLOA,PAOLA RODRIGUEZ,LISSETTE
author_sort	VALENZUELA,MARIA LUISA
title	ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
title_short	ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
title_full	ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
title_fullStr	ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
title_full_unstemmed	ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES
title_sort	electroanalytical analysis of glassy carbon electrode modified with cooh- and no2- functionalized polyspyrophosphazenes
publisher	Sociedad Chilena de Química
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200018
work_keys_str_mv	AT valenzuelamarialuisa electroanalyticalanalysisofglassycarbonelectrodemodifiedwithcoohandno2functionalizedpolyspyrophosphazenes AT cisternasregina electroanalyticalanalysisofglassycarbonelectrodemodifiedwithcoohandno2functionalizedpolyspyrophosphazenes AT jaraulloapaola electroanalyticalanalysisofglassycarbonelectrodemodifiedwithcoohandno2functionalizedpolyspyrophosphazenes AT rodriguezlissette electroanalyticalanalysisofglassycarbonelectrodemodifiedwithcoohandno2functionalizedpolyspyrophosphazenes
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ELECTROANALYTICAL ANALYSIS OF GLASSY CARBON ELECTRODE MODIFIED WITH COOH- AND NO2- FUNCTIONALIZED POLYSPYROPHOSPHAZENES

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