ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES

Anodic electrooxidation of iodide in 0.1 mol L-1 TBAP/ CH2C1(2) was studied electrochemically via cyclic voltammetry, convolution transforms voltammetry, chronoamperometry and chronopotentiometry techniques at a glassy carbon electrode (GCE) at various temperatures ranging from -20 °C to 21 °C. It w...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	EL-HALLAG,I.S
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2010
Materias:	Convolution transforms voltammetry electrochemical parameters digital simulation chronoamperometry chronopotentiometry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100016
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072010000100016
record_format	dspace
spelling	oai:scielo:S0717-970720100001000162010-04-29ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURESEL-HALLAG,I.S Convolution transforms voltammetry electrochemical parameters digital simulation chronoamperometry chronopotentiometry Anodic electrooxidation of iodide in 0.1 mol L-1 TBAP/ CH2C1(2) was studied electrochemically via cyclic voltammetry, convolution transforms voltammetry, chronoamperometry and chronopotentiometry techniques at a glassy carbon electrode (GCE) at various temperatures ranging from -20 °C to 21 °C. It was found that at less positive potential triiodide (I-3) is formed followed by a moderate fast chemical process, while at more positive potential, the triiodide is oxidized to iodine (I2) followed by another chemical process, i.e EC1EC2 scheme. The effect of lowering the temperature on the heterogeneous electron transfer rate constant and the diffusion coefficient was discussed. The relevant chemical and electrochemical parameters of the electrode reaction were determined. The accurate test of the parameters evaluated experimentally was verified by comparing the experimental voltammograms with the simulated one.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.1 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100016en10.4067/S0717-97072010000100016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Convolution transforms voltammetry electrochemical parameters digital simulation chronoamperometry chronopotentiometry
spellingShingle	Convolution transforms voltammetry electrochemical parameters digital simulation chronoamperometry chronopotentiometry EL-HALLAG,I.S ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
description	Anodic electrooxidation of iodide in 0.1 mol L-1 TBAP/ CH2C1(2) was studied electrochemically via cyclic voltammetry, convolution transforms voltammetry, chronoamperometry and chronopotentiometry techniques at a glassy carbon electrode (GCE) at various temperatures ranging from -20 °C to 21 °C. It was found that at less positive potential triiodide (I-3) is formed followed by a moderate fast chemical process, while at more positive potential, the triiodide is oxidized to iodine (I2) followed by another chemical process, i.e EC1EC2 scheme. The effect of lowering the temperature on the heterogeneous electron transfer rate constant and the diffusion coefficient was discussed. The relevant chemical and electrochemical parameters of the electrode reaction were determined. The accurate test of the parameters evaluated experimentally was verified by comparing the experimental voltammograms with the simulated one.
author	EL-HALLAG,I.S
author_facet	EL-HALLAG,I.S
author_sort	EL-HALLAG,I.S
title	ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
title_short	ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
title_full	ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
title_fullStr	ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
title_full_unstemmed	ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES
title_sort	electrochemical oxidation of iodide at a glassy carbon electrode in methylene chloride at various temperatures
publisher	Sociedad Chilena de Química
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100016
work_keys_str_mv	AT elhallagis electrochemicaloxidationofiodideataglassycarbonelectrodeinmethylenechlorideatvarioustemperatures
_version_	1718445420468764672

ELECTROCHEMICAL OXIDATION OF IODIDE AT A GLASSY CARBON ELECTRODE IN METHYLENE CHLORIDE AT VARIOUS TEMPERATURES

Ejemplares similares