One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability

Autores
Morales Mendoza, Noe Javier; Goyanes, Silvia Nair; Chiliotte, Claudio Ezequiel; Bekeris, Victoria Isabel; Candal, Roberto Jorge; Rubiolo, Gerardo Hector
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A multiwall carbon nanotube (MWCNT)/hercynite (FeAl2O4) hybrid nanomaterial was synthesized by one-step chemical vapor deposition (CVD) using acetylene as precursor and FeOx-AlOOH xerogel as catalyst. The hybrid material was composing by hercynite nanoparticles (diameter 10?50 nm) intimately attached to the walls of the MWCNTs. The diameter of the MWCNTs was related to particle size of the catalyst. The hybrid nanomaterial exhibited a characteristic magnetic behavior that can be considered as a combination of superparamagnetism and ferromagnetism, with a saturation magnetization of 5.7 emu/g at an applied field of 18 kOe and a coercivity of 520 Oe. The hybrid displayed a relatively low pHZPC (approx. 3.2) and formed very stable aqueous suspensions at pH 5.5. Controlled oxidation of the hybrid generated oxidized functional groups, as -OH and-COOH, and promoted the transformation of hercynite to hematite. Due to the high dispersibility of the hybrid in water, it presents an interesting potential as nanofiller for hydrophilic polymers
Fil: Morales Mendoza, Noe Javier. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina;
Fil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Chiliotte, Claudio Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Fisica. Laboratorio de Fisica de Bajas Temperaturas; Argentina;
Fil: Bekeris, Victoria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científico Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Químico Física de los Materiales Medioambiente y Energía; Argentina;
Fil: Rubiolo, Gerardo Hector. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear;
Materia
Nanotubos de Carbon
Hercynita
Material Hibrido
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/776
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/776
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stabilityMorales Mendoza, Noe JavierGoyanes, Silvia NairChiliotte, Claudio EzequielBekeris, Victoria IsabelCandal, Roberto JorgeRubiolo, Gerardo HectorNanotubos de CarbonHercynitaMaterial Hibridohttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3A multiwall carbon nanotube (MWCNT)/hercynite (FeAl2O4) hybrid nanomaterial was synthesized by one-step chemical vapor deposition (CVD) using acetylene as precursor and FeOx-AlOOH xerogel as catalyst. The hybrid material was composing by hercynite nanoparticles (diameter 10?50 nm) intimately attached to the walls of the MWCNTs. The diameter of the MWCNTs was related to particle size of the catalyst. The hybrid nanomaterial exhibited a characteristic magnetic behavior that can be considered as a combination of superparamagnetism and ferromagnetism, with a saturation magnetization of 5.7 emu/g at an applied field of 18 kOe and a coercivity of 520 Oe. The hybrid displayed a relatively low pHZPC (approx. 3.2) and formed very stable aqueous suspensions at pH 5.5. Controlled oxidation of the hybrid generated oxidized functional groups, as -OH and-COOH, and promoted the transformation of hercynite to hematite. Due to the high dispersibility of the hybrid in water, it presents an interesting potential as nanofiller for hydrophilic polymersFil: Morales Mendoza, Noe Javier. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina;Fil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;Fil: Chiliotte, Claudio Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Fisica. Laboratorio de Fisica de Bajas Temperaturas; Argentina;Fil: Bekeris, Victoria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científico Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Químico Física de los Materiales Medioambiente y Energía; Argentina;Fil: Rubiolo, Gerardo Hector. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear;Pergamon-Elsevier Science Ltd2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/776Morales Mendoza, Noe Javier; Goyanes, Silvia Nair; Chiliotte, Claudio Ezequiel; Bekeris, Victoria Isabel; Candal, Roberto Jorge; et al.; One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability; Pergamon-Elsevier Science Ltd; Carbon; 61; 5-2013; 515-5240008-6223enginfo:eu-repo/semantics/altIdentifier/url/http://ac.els-cdn.com/S0008622313004508/1-s2.0-S0008622313004508-main.pdf?_tid=f4f1d5ce-1465-11e5-9b0a-00000aab0f6b&acdnat=1434486563_3a7277b040498be81b07896e37ab356binfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbon.2013.04.106info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:12:11Zoai:ri.conicet.gov.ar:11336/776instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:12:11.318CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
title One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
spellingShingle One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
Morales Mendoza, Noe Javier
Nanotubos de Carbon
Hercynita
Material Hibrido
title_short One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
title_full One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
title_fullStr One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
title_full_unstemmed One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
title_sort One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability
dc.creator.none.fl_str_mv Morales Mendoza, Noe Javier
Goyanes, Silvia Nair
Chiliotte, Claudio Ezequiel
Bekeris, Victoria Isabel
Candal, Roberto Jorge
Rubiolo, Gerardo Hector
author Morales Mendoza, Noe Javier
author_facet Morales Mendoza, Noe Javier
Goyanes, Silvia Nair
Chiliotte, Claudio Ezequiel
Bekeris, Victoria Isabel
Candal, Roberto Jorge
Rubiolo, Gerardo Hector
author_role author
author2 Goyanes, Silvia Nair
Chiliotte, Claudio Ezequiel
Bekeris, Victoria Isabel
Candal, Roberto Jorge
Rubiolo, Gerardo Hector
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Nanotubos de Carbon
Hercynita
Material Hibrido
topic Nanotubos de Carbon
Hercynita
Material Hibrido
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv A multiwall carbon nanotube (MWCNT)/hercynite (FeAl2O4) hybrid nanomaterial was synthesized by one-step chemical vapor deposition (CVD) using acetylene as precursor and FeOx-AlOOH xerogel as catalyst. The hybrid material was composing by hercynite nanoparticles (diameter 10?50 nm) intimately attached to the walls of the MWCNTs. The diameter of the MWCNTs was related to particle size of the catalyst. The hybrid nanomaterial exhibited a characteristic magnetic behavior that can be considered as a combination of superparamagnetism and ferromagnetism, with a saturation magnetization of 5.7 emu/g at an applied field of 18 kOe and a coercivity of 520 Oe. The hybrid displayed a relatively low pHZPC (approx. 3.2) and formed very stable aqueous suspensions at pH 5.5. Controlled oxidation of the hybrid generated oxidized functional groups, as -OH and-COOH, and promoted the transformation of hercynite to hematite. Due to the high dispersibility of the hybrid in water, it presents an interesting potential as nanofiller for hydrophilic polymers
Fil: Morales Mendoza, Noe Javier. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina;
Fil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Chiliotte, Claudio Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Fisica. Laboratorio de Fisica de Bajas Temperaturas; Argentina;
Fil: Bekeris, Victoria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científico Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Químico Física de los Materiales Medioambiente y Energía; Argentina;
Fil: Rubiolo, Gerardo Hector. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear;
description A multiwall carbon nanotube (MWCNT)/hercynite (FeAl2O4) hybrid nanomaterial was synthesized by one-step chemical vapor deposition (CVD) using acetylene as precursor and FeOx-AlOOH xerogel as catalyst. The hybrid material was composing by hercynite nanoparticles (diameter 10?50 nm) intimately attached to the walls of the MWCNTs. The diameter of the MWCNTs was related to particle size of the catalyst. The hybrid nanomaterial exhibited a characteristic magnetic behavior that can be considered as a combination of superparamagnetism and ferromagnetism, with a saturation magnetization of 5.7 emu/g at an applied field of 18 kOe and a coercivity of 520 Oe. The hybrid displayed a relatively low pHZPC (approx. 3.2) and formed very stable aqueous suspensions at pH 5.5. Controlled oxidation of the hybrid generated oxidized functional groups, as -OH and-COOH, and promoted the transformation of hercynite to hematite. Due to the high dispersibility of the hybrid in water, it presents an interesting potential as nanofiller for hydrophilic polymers
publishDate 2013
dc.date.none.fl_str_mv 2013-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/776
Morales Mendoza, Noe Javier; Goyanes, Silvia Nair; Chiliotte, Claudio Ezequiel; Bekeris, Victoria Isabel; Candal, Roberto Jorge; et al.; One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability; Pergamon-Elsevier Science Ltd; Carbon; 61; 5-2013; 515-524
0008-6223
url http://hdl.handle.net/11336/776
identifier_str_mv Morales Mendoza, Noe Javier; Goyanes, Silvia Nair; Chiliotte, Claudio Ezequiel; Bekeris, Victoria Isabel; Candal, Roberto Jorge; et al.; One-step chemical vapor deposition synthesis of magnetic CNT-hercynite (FeAl2O4) hybrids with good aqueous colloidal stability; Pergamon-Elsevier Science Ltd; Carbon; 61; 5-2013; 515-524
0008-6223
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://ac.els-cdn.com/S0008622313004508/1-s2.0-S0008622313004508-main.pdf?_tid=f4f1d5ce-1465-11e5-9b0a-00000aab0f6b&acdnat=1434486563_3a7277b040498be81b07896e37ab356b
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbon.2013.04.106
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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