Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method

Detalhes bibliográficos
Autor(a) principal: Lima-Tenório,Michele Karoline
Data de Publicação: 2018
Outros Autores: Ferreira,Carlos Sergio, Rebelo,Querem Hapuque Felix, Souza,Rodrigo Fernando Brambilla de, Passos,Raimundo Ribeiro, Pineda,Edgardo Alfonso Gómes, Pocrifka,Leandro Aparecido
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=S1516-14392018000208103
Resumo: This work reports the synthesization of nanoparticles cobalt oxide (Co3O4) with no secondary phase by a modified sol-gel method and its structural morphological and electrochemical characterizations. FTIR, XRD and Raman analysis showed the formation of spinel cobalt oxide with no secondary phase. TEM images revealed that an undefined morphology with average crystallite size estimated by Scherrer's equation was found to be 30 nm. Experiments of cyclic voltametric, galvanostatic charge-discharge and impedance spectroscopy were evaluated at 1 mol L-1 KOH and revealed an intrinsic pseudocapacitance. The studies of complex capacitance and complex power revealed the resistive and capacitive characteristics with a specific capacitance of 120 F g-1.
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spelling Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel MethodAdapted Sol-gel MethodCo3O4 nanoparticlespseudocapacitancecomplex capacitancecomplex powerThis work reports the synthesization of nanoparticles cobalt oxide (Co3O4) with no secondary phase by a modified sol-gel method and its structural morphological and electrochemical characterizations. FTIR, XRD and Raman analysis showed the formation of spinel cobalt oxide with no secondary phase. TEM images revealed that an undefined morphology with average crystallite size estimated by Scherrer's equation was found to be 30 nm. Experiments of cyclic voltametric, galvanostatic charge-discharge and impedance spectroscopy were evaluated at 1 mol L-1 KOH and revealed an intrinsic pseudocapacitance. The studies of complex capacitance and complex power revealed the resistive and capacitive characteristics with a specific capacitance of 120 F g-1.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000208103Materials Research v.21 n.2 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2017-0521info:eu-repo/semantics/openAccessLima-Tenório,Michele KarolineFerreira,Carlos SergioRebelo,Querem Hapuque FelixSouza,Rodrigo Fernando Brambilla dePassos,Raimundo RibeiroPineda,Edgardo Alfonso GómesPocrifka,Leandro Aparecidoeng2018-05-15T00:00:00Zoai:scielo:S1516-14392018000208103Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-15T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
title Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
spellingShingle Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
Lima-Tenório,Michele Karoline
Adapted Sol-gel Method
Co3O4 nanoparticles
pseudocapacitance
complex capacitance
complex power
title_short Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
title_full Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
title_fullStr Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
title_full_unstemmed Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
title_sort Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method
author Lima-Tenório,Michele Karoline
author_facet Lima-Tenório,Michele Karoline
Ferreira,Carlos Sergio
Rebelo,Querem Hapuque Felix
Souza,Rodrigo Fernando Brambilla de
Passos,Raimundo Ribeiro
Pineda,Edgardo Alfonso Gómes
Pocrifka,Leandro Aparecido
author_role author
author2 Ferreira,Carlos Sergio
Rebelo,Querem Hapuque Felix
Souza,Rodrigo Fernando Brambilla de
Passos,Raimundo Ribeiro
Pineda,Edgardo Alfonso Gómes
Pocrifka,Leandro Aparecido
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lima-Tenório,Michele Karoline
Ferreira,Carlos Sergio
Rebelo,Querem Hapuque Felix
Souza,Rodrigo Fernando Brambilla de
Passos,Raimundo Ribeiro
Pineda,Edgardo Alfonso Gómes
Pocrifka,Leandro Aparecido
dc.subject.por.fl_str_mv Adapted Sol-gel Method
Co3O4 nanoparticles
pseudocapacitance
complex capacitance
complex power
topic Adapted Sol-gel Method
Co3O4 nanoparticles
pseudocapacitance
complex capacitance
complex power
description This work reports the synthesization of nanoparticles cobalt oxide (Co3O4) with no secondary phase by a modified sol-gel method and its structural morphological and electrochemical characterizations. FTIR, XRD and Raman analysis showed the formation of spinel cobalt oxide with no secondary phase. TEM images revealed that an undefined morphology with average crystallite size estimated by Scherrer's equation was found to be 30 nm. Experiments of cyclic voltametric, galvanostatic charge-discharge and impedance spectroscopy were evaluated at 1 mol L-1 KOH and revealed an intrinsic pseudocapacitance. The studies of complex capacitance and complex power revealed the resistive and capacitive characteristics with a specific capacitance of 120 F g-1.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S1516-14392018000208103
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000208103
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2017-0521
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.21 n.2 2018
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
_version_ 1754212673806925824

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