Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000501130 |
Resumo: | The iron complex hexacyanoferrate (Fe4[Fe(CN)6]3), known as Prussian Blue (PB), was electrodeposited over a free-standing carbon nanotube (CNT) film assembled at the interface between two immiscible liquids, water and 1,2-dichlorobenzene. Polarization of the interface achieved through a fixed potential or under potential variation enabled iron present inside CNTs to generate a stable CNT/PB composite. We report herein on the observation that the deposition of PB is dependent on both the pH and applied potential. It was found that aqueous phases containing K3[Fe(CN)6] can decompose under an applied potential, while those containing K4[Fe(CN)6] presented more stable behavior making it a suitable precursor for PB synthesis. The electrodeposition and modification of the interface was followed by in situ spectroelectrochemical Raman spectroscopy, which indicated that an increase in signal due to PB formation was acompanied by changes in the CNT bands due to modification of the CNT walls by decoration with PB, forming a composite structure. |
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Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interfaceliquid-liquid interfacePrussian Bluecarbon nanotubesimmiscible liquidsThe iron complex hexacyanoferrate (Fe4[Fe(CN)6]3), known as Prussian Blue (PB), was electrodeposited over a free-standing carbon nanotube (CNT) film assembled at the interface between two immiscible liquids, water and 1,2-dichlorobenzene. Polarization of the interface achieved through a fixed potential or under potential variation enabled iron present inside CNTs to generate a stable CNT/PB composite. We report herein on the observation that the deposition of PB is dependent on both the pH and applied potential. It was found that aqueous phases containing K3[Fe(CN)6] can decompose under an applied potential, while those containing K4[Fe(CN)6] presented more stable behavior making it a suitable precursor for PB synthesis. The electrodeposition and modification of the interface was followed by in situ spectroelectrochemical Raman spectroscopy, which indicated that an increase in signal due to PB formation was acompanied by changes in the CNT bands due to modification of the CNT walls by decoration with PB, forming a composite structure.Sociedade Brasileira de Química2018-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000501130Journal of the Brazilian Chemical Society v.29 n.5 2018reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20180024info:eu-repo/semantics/openAccessHusmann,SamanthaBooth,Samuel G.Zarbin,Aldo J. G.Dryfe,Robert A. W.eng2018-07-04T00:00:00Zoai:scielo:S0103-50532018000501130Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2018-07-04T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
title |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
spellingShingle |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface Husmann,Samantha liquid-liquid interface Prussian Blue carbon nanotubes immiscible liquids |
title_short |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
title_full |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
title_fullStr |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
title_full_unstemmed |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
title_sort |
Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid-Liquid Interface |
author |
Husmann,Samantha |
author_facet |
Husmann,Samantha Booth,Samuel G. Zarbin,Aldo J. G. Dryfe,Robert A. W. |
author_role |
author |
author2 |
Booth,Samuel G. Zarbin,Aldo J. G. Dryfe,Robert A. W. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Husmann,Samantha Booth,Samuel G. Zarbin,Aldo J. G. Dryfe,Robert A. W. |
dc.subject.por.fl_str_mv |
liquid-liquid interface Prussian Blue carbon nanotubes immiscible liquids |
topic |
liquid-liquid interface Prussian Blue carbon nanotubes immiscible liquids |
description |
The iron complex hexacyanoferrate (Fe4[Fe(CN)6]3), known as Prussian Blue (PB), was electrodeposited over a free-standing carbon nanotube (CNT) film assembled at the interface between two immiscible liquids, water and 1,2-dichlorobenzene. Polarization of the interface achieved through a fixed potential or under potential variation enabled iron present inside CNTs to generate a stable CNT/PB composite. We report herein on the observation that the deposition of PB is dependent on both the pH and applied potential. It was found that aqueous phases containing K3[Fe(CN)6] can decompose under an applied potential, while those containing K4[Fe(CN)6] presented more stable behavior making it a suitable precursor for PB synthesis. The electrodeposition and modification of the interface was followed by in situ spectroelectrochemical Raman spectroscopy, which indicated that an increase in signal due to PB formation was acompanied by changes in the CNT bands due to modification of the CNT walls by decoration with PB, forming a composite structure. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-01 |
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=S0103-50532018000501130 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000501130 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20180024 |
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 |
Journal of the Brazilian Chemical Society v.29 n.5 2018 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318180789649408 |