Desenvolvimento e aplicação de células eletroquímicas em camada delgada
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020 |
Resumo: | Theoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(CN)6(3-)/Fe(II)(CN) 6(4-)) using two experimental methods, cyclic voltammetry and pulse chronopotentiometry. A numerical integration based-program was developed to calculate the voltammetric current in case of nernstian and non-nernstian behaviours and a diffusional model was used to treat the chronopotentiometric data. Thermodynamic (potential, concentration) and kinetic parameters (diffusion coefficient) were successfully determined for the redox system studied in this work. |
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Desenvolvimento e aplicação de células eletroquímicas em camada delgadathin layerelectrochemical cellchronopotentiometryTheoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(CN)6(3-)/Fe(II)(CN) 6(4-)) using two experimental methods, cyclic voltammetry and pulse chronopotentiometry. A numerical integration based-program was developed to calculate the voltammetric current in case of nernstian and non-nernstian behaviours and a diffusional model was used to treat the chronopotentiometric data. Thermodynamic (potential, concentration) and kinetic parameters (diffusion coefficient) were successfully determined for the redox system studied in this work.Sociedade Brasileira de Química1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020Química Nova v.22 n.6 1999reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40421999000600020info:eu-repo/semantics/openAccessPernaut,Jean MichelMatencio,Tulliopor2000-10-06T00:00:00Zoai:scielo:S0100-40421999000600020Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2000-10-06T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
title |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
spellingShingle |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada Pernaut,Jean Michel thin layer electrochemical cell chronopotentiometry |
title_short |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
title_full |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
title_fullStr |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
title_full_unstemmed |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
title_sort |
Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
author |
Pernaut,Jean Michel |
author_facet |
Pernaut,Jean Michel Matencio,Tullio |
author_role |
author |
author2 |
Matencio,Tullio |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Pernaut,Jean Michel Matencio,Tullio |
dc.subject.por.fl_str_mv |
thin layer electrochemical cell chronopotentiometry |
topic |
thin layer electrochemical cell chronopotentiometry |
description |
Theoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(CN)6(3-)/Fe(II)(CN) 6(4-)) using two experimental methods, cyclic voltammetry and pulse chronopotentiometry. A numerical integration based-program was developed to calculate the voltammetric current in case of nernstian and non-nernstian behaviours and a diffusional model was used to treat the chronopotentiometric data. Thermodynamic (potential, concentration) and kinetic parameters (diffusion coefficient) were successfully determined for the redox system studied in this work. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40421999000600020 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.22 n.6 1999 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318101257256960 |