ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES

Electrocatalytic carbon dioxide reduction was studied in aqueous media on glassy carbon electrode coated with polymeric Co-tetra-3-aminophenylporphyrin. The polymeric complex-modified electrode catalyses the carbon dioxide reduction to carbon monoxide and formic acid. The monomeric system does not c...

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Autores principales:	RIQUELME,M.A., ISAACS,M., LUCERO,M., TROLLUND,E., AGUIRRE,M.J., CANALES,J.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	Electrocatalytic CO2 Reduction Poly-Co-tetra-3-aminophenylporphyrin Modified Electrodes Electrocatalytic Mechanism
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200016
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id	oai:scielo:S0717-97072003000200016
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spelling	oai:scielo:S0717-970720030002000162004-01-29ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODESRIQUELME,M.A.ISAACS,M.LUCERO,M.TROLLUND,E.AGUIRRE,M.J.CANALES,J. Electrocatalytic CO2 Reduction Poly-Co-tetra-3-aminophenylporphyrin Modified Electrodes Electrocatalytic Mechanism Electrocatalytic carbon dioxide reduction was studied in aqueous media on glassy carbon electrode coated with polymeric Co-tetra-3-aminophenylporphyrin. The polymeric complex-modified electrode catalyses the carbon dioxide reduction to carbon monoxide and formic acid. The monomeric system does not catalyze the reduction probably because it is not stable. The polymer, instead, presents higher activity at lower potentials and loses its activity only after more than four hours of electrolysis at constant potential. The redox couple responsible for the catalysis is Co(II)/Co(I). Kinetic electro-reduction parameters for the polymer-modified electrode were obtained and a probable mechanism operating in aqueous media containing sodium perchlorate as electrolyte is proposedinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.2 20032003-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200016en10.4067/S0717-97072003000200016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Electrocatalytic CO2 Reduction Poly-Co-tetra-3-aminophenylporphyrin Modified Electrodes Electrocatalytic Mechanism
spellingShingle	Electrocatalytic CO2 Reduction Poly-Co-tetra-3-aminophenylporphyrin Modified Electrodes Electrocatalytic Mechanism RIQUELME,M.A. ISAACS,M. LUCERO,M. TROLLUND,E. AGUIRRE,M.J. CANALES,J. ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
description	Electrocatalytic carbon dioxide reduction was studied in aqueous media on glassy carbon electrode coated with polymeric Co-tetra-3-aminophenylporphyrin. The polymeric complex-modified electrode catalyses the carbon dioxide reduction to carbon monoxide and formic acid. The monomeric system does not catalyze the reduction probably because it is not stable. The polymer, instead, presents higher activity at lower potentials and loses its activity only after more than four hours of electrolysis at constant potential. The redox couple responsible for the catalysis is Co(II)/Co(I). Kinetic electro-reduction parameters for the polymer-modified electrode were obtained and a probable mechanism operating in aqueous media containing sodium perchlorate as electrolyte is proposed
author	RIQUELME,M.A. ISAACS,M. LUCERO,M. TROLLUND,E. AGUIRRE,M.J. CANALES,J.
author_facet	RIQUELME,M.A. ISAACS,M. LUCERO,M. TROLLUND,E. AGUIRRE,M.J. CANALES,J.
author_sort	RIQUELME,M.A.
title	ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
title_short	ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
title_full	ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
title_fullStr	ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
title_full_unstemmed	ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES
title_sort	electrocatalytic reduction of carbon dioxide at polymeric cobalt tetra (3-amino (pheny1) porphyrin glassy carbon-modified electrodes
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200016
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ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE AT POLYMERIC COBALT TETRA (3-AMINO (PHENY1) PORPHYRIN GLASSY CARBON-MODIFIED ELECTRODES

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