PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE

The aim of this work was the study of three different modified electrodes where the substrate and the porphyrin used to modify the electrodic surface was the same. The surface electrode was a glass covered by a layer of SnO2 doped with fluor. On this layer was formed a cubic spinel of Co-cobaltite....

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Autores principales:	BRAVO,PAZ, ISAACS,FABIOLA, RAMÍREZ,GALO, ARMIJO,FRANCISCO, ISAACS,MAURICIO, AGUIRRE,MARÍA JESÚS, ZAMORA,CLAUDIA, TROLLUND,EJNAR
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2005
Materias:	Electrooxidation of hydrazine amperometric sensor of hydrazine modified electrodes Ni(II)-p-tetraaminophenylporphyrin Co-cobaltite electrodes
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400006
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id	oai:scielo:S0717-97072005000400006
record_format	dspace
spelling	oai:scielo:S0717-970720050004000062006-04-19PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINEBRAVO,PAZISAACS,FABIOLARAMÍREZ,GALOARMIJO,FRANCISCOISAACS,MAURICIOAGUIRRE,MARÍA JESÚSZAMORA,CLAUDIATROLLUND,EJNAR Electrooxidation of hydrazine amperometric sensor of hydrazine modified electrodes Ni(II)-p-tetraaminophenylporphyrin Co-cobaltite electrodes The aim of this work was the study of three different modified electrodes where the substrate and the porphyrin used to modify the electrodic surface was the same. The surface electrode was a glass covered by a layer of SnO2 doped with fluor. On this layer was formed a cubic spinel of Co-cobaltite. On this modified electrode was deposited or polymerized para-tetraaminophenylporphyrin of Ni (II). In each case, the treatment of the deposition of the porphyrin was different and the electrocatalytic behavior of the modified electrodes toward the oxidation of hydrazine drastically changes. In the case of a simple physically adsorbed layer of porphyrin, practically no electrocatalytic activity was found. In the case of a porphyrin deposited by reflux and cycled in basic solution, there is an important electrocatalytic activity giving N2 as product. This electrode was proved as an amperometric sensor of hydrazine and a very good linear relationship between current and concentration was determinate. Also, the polymeric electrode showed an important catalytic behavior toward the oxidation of hydrazineinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.4 20052005-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400006en10.4067/S0717-97072005000400006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Electrooxidation of hydrazine amperometric sensor of hydrazine modified electrodes Ni(II)-p-tetraaminophenylporphyrin Co-cobaltite electrodes
spellingShingle	Electrooxidation of hydrazine amperometric sensor of hydrazine modified electrodes Ni(II)-p-tetraaminophenylporphyrin Co-cobaltite electrodes BRAVO,PAZ ISAACS,FABIOLA RAMÍREZ,GALO ARMIJO,FRANCISCO ISAACS,MAURICIO AGUIRRE,MARÍA JESÚS ZAMORA,CLAUDIA TROLLUND,EJNAR PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
description	The aim of this work was the study of three different modified electrodes where the substrate and the porphyrin used to modify the electrodic surface was the same. The surface electrode was a glass covered by a layer of SnO2 doped with fluor. On this layer was formed a cubic spinel of Co-cobaltite. On this modified electrode was deposited or polymerized para-tetraaminophenylporphyrin of Ni (II). In each case, the treatment of the deposition of the porphyrin was different and the electrocatalytic behavior of the modified electrodes toward the oxidation of hydrazine drastically changes. In the case of a simple physically adsorbed layer of porphyrin, practically no electrocatalytic activity was found. In the case of a porphyrin deposited by reflux and cycled in basic solution, there is an important electrocatalytic activity giving N2 as product. This electrode was proved as an amperometric sensor of hydrazine and a very good linear relationship between current and concentration was determinate. Also, the polymeric electrode showed an important catalytic behavior toward the oxidation of hydrazine
author	BRAVO,PAZ ISAACS,FABIOLA RAMÍREZ,GALO ARMIJO,FRANCISCO ISAACS,MAURICIO AGUIRRE,MARÍA JESÚS ZAMORA,CLAUDIA TROLLUND,EJNAR
author_facet	BRAVO,PAZ ISAACS,FABIOLA RAMÍREZ,GALO ARMIJO,FRANCISCO ISAACS,MAURICIO AGUIRRE,MARÍA JESÚS ZAMORA,CLAUDIA TROLLUND,EJNAR
author_sort	BRAVO,PAZ
title	PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
title_short	PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
title_full	PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
title_fullStr	PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
title_full_unstemmed	PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE
title_sort	para-ni-tetraaminophenylporphyrin/co-cobaltite/sno2:f modified electrodes: electrocatalytic behavior toward the oxidation of hidrazine
publisher	Sociedad Chilena de Química
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400006
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PARA-Ni-TETRAAMINOPHENYLPORPHYRIN/Co-COBALTITE/SnO2:F MODIFIED ELECTRODES: ELECTROCATALYTIC BEHAVIOR TOWARD THE OXIDATION OF HIDRAZINE

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