A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.electrochemsci.org/papers/vol8/80404654.pdf http://hdl.handle.net/11449/75040 |
Resumo: | This paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol (SA), and its subsequent reactions in two steps, first with copper and so hexacyanoferrate (III) (CuHSA). The precursors and CuHSA were initially characterized by by Fourier transform infrared spectra (FTIR). This composite was incorporated into a graphite paste electrode and the electrochemical behavior studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with CuHSA, showed one redox couple with formal potential Eθ'= 0.75V vs Ag/AgCl(sat) (KCl 1.0 mol L-1; v = 20 mV s-1) attributed to the redox process Fe(II)(CN)6 / Fe(III)(CN)6 of the binuclear complex formed. The redox couple presents an electrocatalytic response for determination of nitrite. The modified graphite paste electrode showed a linear response of 1.0 × 10-5 to 5.0 × 10-3 mol L-1. The method has a detection limit of 3.57 × 10-4 mol L-1, standard deviation of 1.5% for n=3 with an amperometric sensitivity 30.00 mA/mol L-1 to nitrite. The modified electrode was electrochemically stable and showed good reproducibility. © 2013 by ESG. |
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A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite4-amino-5-4(pyridyl)-4H-1,2,4-triazole-3-thiolElectrocatalysisNitriteOcta(3-chloropropyl)octasilsesquioxaneVoltammetryThis paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol (SA), and its subsequent reactions in two steps, first with copper and so hexacyanoferrate (III) (CuHSA). The precursors and CuHSA were initially characterized by by Fourier transform infrared spectra (FTIR). This composite was incorporated into a graphite paste electrode and the electrochemical behavior studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with CuHSA, showed one redox couple with formal potential Eθ'= 0.75V vs Ag/AgCl(sat) (KCl 1.0 mol L-1; v = 20 mV s-1) attributed to the redox process Fe(II)(CN)6 / Fe(III)(CN)6 of the binuclear complex formed. The redox couple presents an electrocatalytic response for determination of nitrite. The modified graphite paste electrode showed a linear response of 1.0 × 10-5 to 5.0 × 10-3 mol L-1. The method has a detection limit of 3.57 × 10-4 mol L-1, standard deviation of 1.5% for n=3 with an amperometric sensitivity 30.00 mA/mol L-1 to nitrite. The modified electrode was electrochemically stable and showed good reproducibility. © 2013 by ESG.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Faculdade de Engenharia de Ilha Solteira Universidade Estadual Paulista (UNESP) Departamento de Física e Química, Av. Brasil Centro, 56, CEP 15385-000, Ilha Solteira, SPFaculdade de Engenharia de Ilha Solteira Universidade Estadual Paulista (UNESP) Departamento de Física e Química, Av. Brasil Centro, 56, CEP 15385-000, Ilha Solteira, SPFAPESP: 12/05438-1FAPESP: 12/11306-0Universidade Estadual Paulista (Unesp)Soares, Layciane Aparecida [UNESP]da Silveira, Tayla Fernanda Serantoni [UNESP]Silvestrini, Daniela Rodrigues [UNESP]de Oliveira Bicalho, Urquisa [UNESP]Filho, Newton Luiz Dias [UNESP]do Carmo, Devaney Ribeiro [UNESP]2014-05-27T11:28:49Z2014-05-27T11:28:49Z2013-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4654-4669application/pdfhttp://www.electrochemsci.org/papers/vol8/80404654.pdfInternational Journal of Electrochemical Science, v. 8, n. 4, p. 4654-4669, 2013.1452-3981http://hdl.handle.net/11449/75040WOS:0003182172000222-s2.0-848760906602-s2.0-84876090660.pdf16147456978700030545046720519536Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Electrochemical Science1.3690,366info:eu-repo/semantics/openAccess2024-07-10T14:07:38Zoai:repositorio.unesp.br:11449/75040Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:37:49.372707Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
title |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
spellingShingle |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite Soares, Layciane Aparecida [UNESP] 4-amino-5-4(pyridyl)-4H-1,2,4-triazole-3-thiol Electrocatalysis Nitrite Octa(3-chloropropyl)octasilsesquioxane Voltammetry |
title_short |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
title_full |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
title_fullStr |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
title_full_unstemmed |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
title_sort |
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite |
author |
Soares, Layciane Aparecida [UNESP] |
author_facet |
Soares, Layciane Aparecida [UNESP] da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
author_role |
author |
author2 |
da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Soares, Layciane Aparecida [UNESP] da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
dc.subject.por.fl_str_mv |
4-amino-5-4(pyridyl)-4H-1,2,4-triazole-3-thiol Electrocatalysis Nitrite Octa(3-chloropropyl)octasilsesquioxane Voltammetry |
topic |
4-amino-5-4(pyridyl)-4H-1,2,4-triazole-3-thiol Electrocatalysis Nitrite Octa(3-chloropropyl)octasilsesquioxane Voltammetry |
description |
This paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol (SA), and its subsequent reactions in two steps, first with copper and so hexacyanoferrate (III) (CuHSA). The precursors and CuHSA were initially characterized by by Fourier transform infrared spectra (FTIR). This composite was incorporated into a graphite paste electrode and the electrochemical behavior studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with CuHSA, showed one redox couple with formal potential Eθ'= 0.75V vs Ag/AgCl(sat) (KCl 1.0 mol L-1; v = 20 mV s-1) attributed to the redox process Fe(II)(CN)6 / Fe(III)(CN)6 of the binuclear complex formed. The redox couple presents an electrocatalytic response for determination of nitrite. The modified graphite paste electrode showed a linear response of 1.0 × 10-5 to 5.0 × 10-3 mol L-1. The method has a detection limit of 3.57 × 10-4 mol L-1, standard deviation of 1.5% for n=3 with an amperometric sensitivity 30.00 mA/mol L-1 to nitrite. The modified electrode was electrochemically stable and showed good reproducibility. © 2013 by ESG. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-04-01 2014-05-27T11:28:49Z 2014-05-27T11:28:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.electrochemsci.org/papers/vol8/80404654.pdf International Journal of Electrochemical Science, v. 8, n. 4, p. 4654-4669, 2013. 1452-3981 http://hdl.handle.net/11449/75040 WOS:000318217200022 2-s2.0-84876090660 2-s2.0-84876090660.pdf 1614745697870003 0545046720519536 |
url |
http://www.electrochemsci.org/papers/vol8/80404654.pdf http://hdl.handle.net/11449/75040 |
identifier_str_mv |
International Journal of Electrochemical Science, v. 8, n. 4, p. 4654-4669, 2013. 1452-3981 WOS:000318217200022 2-s2.0-84876090660 2-s2.0-84876090660.pdf 1614745697870003 0545046720519536 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal of Electrochemical Science 1.369 0,366 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4654-4669 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128836359946240 |