"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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Sociedad Chilena de Química
2001
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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 |
work_keys_str_mv |
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_version_ |
1718438131829571584 |