Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , |
Tipo de documento: | Relatório |
Idioma: | eng |
Título da fonte: | Eclética Química |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702003000200009 |
Resumo: | Electrodes consisting of Pt nanoparticles dispersed on thin films of niobium oxide were prepared onto titanium substrates by a sol-gel method. The physical characterization of these electrodes was carried out by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. The mean size of the Pt particles was found to be 10.7 nm. The general aspects of the electrochemical behavior were studied by cyclic voltammetry in 1 mol L-1 HClO4 aqueous solution. The response of these electrodes in relation to the oxidation of formaldehyde and methanol in acidic media was also studied. |
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Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxidePt nanoparticlessol-gelelectrocatalysisniobium oxideElectrodes consisting of Pt nanoparticles dispersed on thin films of niobium oxide were prepared onto titanium substrates by a sol-gel method. The physical characterization of these electrodes was carried out by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. The mean size of the Pt particles was found to be 10.7 nm. The general aspects of the electrochemical behavior were studied by cyclic voltammetry in 1 mol L-1 HClO4 aqueous solution. The response of these electrodes in relation to the oxidation of formaldehyde and methanol in acidic media was also studied.Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP2003-01-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702003000200009Eclética Química v.28 n.2 2003reponame:Eclética Químicainstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESP10.1590/S0100-46702003000200009info:eu-repo/semantics/openAccessMello,R. L. S.Mattos-Costa,F. I.Villullas,H. de las M.Bulhões,L. O. de S.eng2004-04-02T00:00:00Zoai:scielo:S0100-46702003000200009Revistahttp://revista.iq.unesp.br/ojs/index.php/ecletica/PUBhttps://revista.iq.unesp.br/ojs/index.php/ecletica/oaiecletica@ctrlk.com.br||ecletica@iq.unesp.br1678-46181678-4618opendoar:2004-04-02T00:00Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)false |
dc.title.none.fl_str_mv |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
title |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
spellingShingle |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide Mello,R. L. S. Pt nanoparticles sol-gel electrocatalysis niobium oxide |
title_short |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
title_full |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
title_fullStr |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
title_full_unstemmed |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
title_sort |
Preparation and electrochemical characterization of Pt nanoparticles dispersed on niobium oxide |
author |
Mello,R. L. S. |
author_facet |
Mello,R. L. S. Mattos-Costa,F. I. Villullas,H. de las M. Bulhões,L. O. de S. |
author_role |
author |
author2 |
Mattos-Costa,F. I. Villullas,H. de las M. Bulhões,L. O. de S. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mello,R. L. S. Mattos-Costa,F. I. Villullas,H. de las M. Bulhões,L. O. de S. |
dc.subject.por.fl_str_mv |
Pt nanoparticles sol-gel electrocatalysis niobium oxide |
topic |
Pt nanoparticles sol-gel electrocatalysis niobium oxide |
description |
Electrodes consisting of Pt nanoparticles dispersed on thin films of niobium oxide were prepared onto titanium substrates by a sol-gel method. The physical characterization of these electrodes was carried out by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. The mean size of the Pt particles was found to be 10.7 nm. The general aspects of the electrochemical behavior were studied by cyclic voltammetry in 1 mol L-1 HClO4 aqueous solution. The response of these electrodes in relation to the oxidation of formaldehyde and methanol in acidic media was also studied. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/report |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
report |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702003000200009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702003000200009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-46702003000200009 |
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 |
Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP |
publisher.none.fl_str_mv |
Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP |
dc.source.none.fl_str_mv |
Eclética Química v.28 n.2 2003 reponame:Eclética Química instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Eclética Química |
collection |
Eclética Química |
repository.name.fl_str_mv |
Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
ecletica@ctrlk.com.br||ecletica@iq.unesp.br |
_version_ |
1754734617650266112 |