OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE

The oxygen reduction reaction (orr) was studied on CG/PPy/PPy(Ox)/PPy and CG/paint/CC(Ox)PPy composite electrodes, CG representing conducting glass, PPy polypyrrole, CC carbon cloth and Ox mixed valence spinel oxide particles of transition metals Cu14Mn16O4 in 0.2 M KCl pH = 9.2, at room temperature...

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Autores principales:	ESPEJO,ANDRES, ORTIZ,JUAN, RIOS,EDMUNDO, HERRERA,FRANCISCO, ALBURQUENQUE,DANIELA, GAUTIER,JUANLUIS
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	Copper manganites Spinel oxide Composite electrode Polypyrrole Oxygen electroreduction
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200023
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spelling	oai:scielo:S0717-970720140002000232014-11-05OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZEESPEJO,ANDRESORTIZ,JUANRIOS,EDMUNDOHERRERA,FRANCISCOALBURQUENQUE,DANIELAGAUTIER,JUANLUIS Copper manganites Spinel oxide Composite electrode Polypyrrole Oxygen electroreduction The oxygen reduction reaction (orr) was studied on CG/PPy/PPy(Ox)/PPy and CG/paint/CC(Ox)PPy composite electrodes, CG representing conducting glass, PPy polypyrrole, CC carbon cloth and Ox mixed valence spinel oxide particles of transition metals Cu14Mn16O4 in 0.2 M KCl pH = 9.2, at room temperature. PPy is electrochemically polymerized and serves as a protective layer to dispersed oxide particles in the carbon cloth. Oxide particles size varied from 7.6 to 11.2 μm. The orr takes place on the oxide particles with formation of hydrogen peroxide which diffuses to electrolyte solution. The amount of peroxide ions produced was detected using the rotating ring-disk electrode technique and determined indirectly by iodine spectroscopy. The peroxide ions production depends strongly on the oxide particle size.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.2 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200023en10.4067/S0717-97072014000200023
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Copper manganites Spinel oxide Composite electrode Polypyrrole Oxygen electroreduction
spellingShingle	Copper manganites Spinel oxide Composite electrode Polypyrrole Oxygen electroreduction ESPEJO,ANDRES ORTIZ,JUAN RIOS,EDMUNDO HERRERA,FRANCISCO ALBURQUENQUE,DANIELA GAUTIER,JUANLUIS OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
description	The oxygen reduction reaction (orr) was studied on CG/PPy/PPy(Ox)/PPy and CG/paint/CC(Ox)PPy composite electrodes, CG representing conducting glass, PPy polypyrrole, CC carbon cloth and Ox mixed valence spinel oxide particles of transition metals Cu14Mn16O4 in 0.2 M KCl pH = 9.2, at room temperature. PPy is electrochemically polymerized and serves as a protective layer to dispersed oxide particles in the carbon cloth. Oxide particles size varied from 7.6 to 11.2 μm. The orr takes place on the oxide particles with formation of hydrogen peroxide which diffuses to electrolyte solution. The amount of peroxide ions produced was detected using the rotating ring-disk electrode technique and determined indirectly by iodine spectroscopy. The peroxide ions production depends strongly on the oxide particle size.
author	ESPEJO,ANDRES ORTIZ,JUAN RIOS,EDMUNDO HERRERA,FRANCISCO ALBURQUENQUE,DANIELA GAUTIER,JUANLUIS
author_facet	ESPEJO,ANDRES ORTIZ,JUAN RIOS,EDMUNDO HERRERA,FRANCISCO ALBURQUENQUE,DANIELA GAUTIER,JUANLUIS
author_sort	ESPEJO,ANDRES
title	OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
title_short	OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
title_full	OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
title_fullStr	OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
title_full_unstemmed	OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE
title_sort	oxygen reduction on cu1 ,mn16o4 spinel particles composite electrodes effect of particles size
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200023
work_keys_str_mv	AT espejoandres oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize AT ortizjuan oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize AT riosedmundo oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize AT herrerafrancisco oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize AT alburquenquedaniela oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize AT gautierjuanluis oxygenreductiononcu1mn16o4spinelparticlescompositeelectrodeseffectofparticlessize
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OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE

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