Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Emerson Sarmento
Data de Publicação: 2006
Outros Autores: Rezende,Mirabel Cerqueira, Takahashi,Marta Ferreira Koyama, Ferreira,Neidenêi Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200007
Resumo: Electrochemical response of ferri/ferrocyanide redox couple is discussed for a system that uses reticulated vitreous carbon (RVC) three dimensional electrodes prepared at five different Heat Treatment Temperatures (HTT) in the range of 700 °C to 1100 °C. Electrical resistivity, scanning electron microscopy and X ray Diffraction analyses were performed for all prepared samples. It was observed that the HTT increasing promotes an electrical conductivity increasing while the Bragg distance d002 decreases. The correlation between reversibility behavior of ferri/ferrocyanide redox couple and both surface morphology and chemical properties of the RVC electrodes demonstrated a strong dependence on the HTT used to prepare the RVC.
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spelling Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperaturesreticulated vitreous carbonpyrolysisX ray diffractionelectrochemical propertiesElectrochemical response of ferri/ferrocyanide redox couple is discussed for a system that uses reticulated vitreous carbon (RVC) three dimensional electrodes prepared at five different Heat Treatment Temperatures (HTT) in the range of 700 °C to 1100 °C. Electrical resistivity, scanning electron microscopy and X ray Diffraction analyses were performed for all prepared samples. It was observed that the HTT increasing promotes an electrical conductivity increasing while the Bragg distance d002 decreases. The correlation between reversibility behavior of ferri/ferrocyanide redox couple and both surface morphology and chemical properties of the RVC electrodes demonstrated a strong dependence on the HTT used to prepare the RVC.ABM, ABC, ABPol2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200007Materials Research v.9 n.2 2006reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392006000200007info:eu-repo/semantics/openAccessGonçalves,Emerson SarmentoRezende,Mirabel CerqueiraTakahashi,Marta Ferreira KoyamaFerreira,Neidenêi Gomeseng2006-06-06T00:00:00Zoai:scielo:S1516-14392006000200007Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2006-06-06T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
title Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
spellingShingle Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
Gonçalves,Emerson Sarmento
reticulated vitreous carbon
pyrolysis
X ray diffraction
electrochemical properties
title_short Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
title_full Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
title_fullStr Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
title_full_unstemmed Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
title_sort Electrochemical reversibility of reticulated vitreous carbon electrodes heat treated at different carbonization temperatures
author Gonçalves,Emerson Sarmento
author_facet Gonçalves,Emerson Sarmento
Rezende,Mirabel Cerqueira
Takahashi,Marta Ferreira Koyama
Ferreira,Neidenêi Gomes
author_role author
author2 Rezende,Mirabel Cerqueira
Takahashi,Marta Ferreira Koyama
Ferreira,Neidenêi Gomes
author2_role author
author
author
dc.contributor.author.fl_str_mv Gonçalves,Emerson Sarmento
Rezende,Mirabel Cerqueira
Takahashi,Marta Ferreira Koyama
Ferreira,Neidenêi Gomes
dc.subject.por.fl_str_mv reticulated vitreous carbon
pyrolysis
X ray diffraction
electrochemical properties
topic reticulated vitreous carbon
pyrolysis
X ray diffraction
electrochemical properties
description Electrochemical response of ferri/ferrocyanide redox couple is discussed for a system that uses reticulated vitreous carbon (RVC) three dimensional electrodes prepared at five different Heat Treatment Temperatures (HTT) in the range of 700 °C to 1100 °C. Electrical resistivity, scanning electron microscopy and X ray Diffraction analyses were performed for all prepared samples. It was observed that the HTT increasing promotes an electrical conductivity increasing while the Bragg distance d002 decreases. The correlation between reversibility behavior of ferri/ferrocyanide redox couple and both surface morphology and chemical properties of the RVC electrodes demonstrated a strong dependence on the HTT used to prepare the RVC.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
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=S1516-14392006000200007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392006000200007
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.9 n.2 2006
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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