"EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"

The macrocyclic ligand, tetraaminophthalocyanine, was electropolymerized on a glassy carbon electrode by continuously potentiodynamic scans, using two different solvents, dimethylsulfoxide and dimethylformamide. In the first case, an over-oxidation can takes place, which partially destroy the film a...

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Autores principales: RAMÍREZ,GALO, TROLLUND,EJNAR, CANALES,JUAN C., CANALES,MARÍA J, ARMIJO,FRANCISCO, AGUIRRE,MARÍA J
Lenguaje:English
Publicado: Sociedad Chilena de Química 2001
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000300003
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spelling oai:scielo:S0366-164420010003000032002-02-05"EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"RAMÍREZ,GALOTROLLUND,EJNARCANALES,JUAN C.CANALES,MARÍA JARMIJO,FRANCISCOAGUIRRE,MARÍA J Poly-tetraaminophthalocyanine conducting polymers electroreduction of molecular oxygen dimethylsulfoxide dimethylformamide The macrocyclic ligand, tetraaminophthalocyanine, was electropolymerized on a glassy carbon electrode by continuously potentiodynamic scans, using two different solvents, dimethylsulfoxide and dimethylformamide. In the first case, an over-oxidation can takes place, which partially destroy the film and inhibits its electrocatalytic activity for the reduction of oxygen compared to the polymer grown in dimethylformamide. To avoid this over-oxidation, two possible ways can be used: to achieve the electropolymerization during a lower number of potentiodynamic scans or using a positive potential limit shifted to more negative potentials. If a narrow potential interval is used, the electrocatalytic behavior of the polymer is similar to that obtained in dimethylformamide. However, if a wide potential interval is used but only during few potentiodynamic scans, it is possible to obtain a polymer with a new redox signal that presents a very interesting electrocatalytic activity for the reduction of molecular oxygeninfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaBoletín de la Sociedad Chilena de Química v.46 n.3 20012001-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000300003en10.4067/S0366-16442001000300003
institution Scielo Chile
collection Scielo Chile
language English
topic Poly-tetraaminophthalocyanine
conducting polymers
electroreduction of molecular oxygen
dimethylsulfoxide
dimethylformamide
spellingShingle Poly-tetraaminophthalocyanine
conducting polymers
electroreduction of molecular oxygen
dimethylsulfoxide
dimethylformamide
RAMÍREZ,GALO
TROLLUND,EJNAR
CANALES,JUAN C.
CANALES,MARÍA J
ARMIJO,FRANCISCO
AGUIRRE,MARÍA J
"EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
description The macrocyclic ligand, tetraaminophthalocyanine, was electropolymerized on a glassy carbon electrode by continuously potentiodynamic scans, using two different solvents, dimethylsulfoxide and dimethylformamide. In the first case, an over-oxidation can takes place, which partially destroy the film and inhibits its electrocatalytic activity for the reduction of oxygen compared to the polymer grown in dimethylformamide. To avoid this over-oxidation, two possible ways can be used: to achieve the electropolymerization during a lower number of potentiodynamic scans or using a positive potential limit shifted to more negative potentials. If a narrow potential interval is used, the electrocatalytic behavior of the polymer is similar to that obtained in dimethylformamide. However, if a wide potential interval is used but only during few potentiodynamic scans, it is possible to obtain a polymer with a new redox signal that presents a very interesting electrocatalytic activity for the reduction of molecular oxygen
author RAMÍREZ,GALO
TROLLUND,EJNAR
CANALES,JUAN C.
CANALES,MARÍA J
ARMIJO,FRANCISCO
AGUIRRE,MARÍA J
author_facet RAMÍREZ,GALO
TROLLUND,EJNAR
CANALES,JUAN C.
CANALES,MARÍA J
ARMIJO,FRANCISCO
AGUIRRE,MARÍA J
author_sort RAMÍREZ,GALO
title "EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
title_short "EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
title_full "EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
title_fullStr "EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
title_full_unstemmed "EFFECT OF THE CONDITIONS OF ELECTROPOLYMERIZATION ON THE ELECTROCATALYTIC RESPONSE OF NON-METALLED- POLY-TETRAAMINOPHTHALOCYANINE-MODIFIED ELECTRODES TOWARD THE REDUCTION OF OXYGEN"
title_sort "effect of the conditions of electropolymerization on the electrocatalytic response of non-metalled- poly-tetraaminophthalocyanine-modified electrodes toward the reduction of oxygen"
publisher Sociedad Chilena de Química
publishDate 2001
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000300003
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