Production of TiO2 Coated Multiwall Carbon Nanotubes by the Sol-Gel Technique

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dc.citation.volume20
dc.contributor.authorArdila Rodriguez, Laura Angelica [UNIFESP]
dc.contributor.authorPianassola, Matheus [UNIFESP]
dc.contributor.authorTravessa, Dilermando Nagle [UNIFESP]
dc.coverageSao Carlos
dc.date.accessioned2020-07-17T14:03:21Z
dc.date.available2020-07-17T14:03:21Z
dc.date.issued2017
dc.description.abstractIn recent years, efforts in developing high strength-low density materials are increasing significantly. One of the promising materials to attend this demand is the carbon nanotube (CNT), to be used mainly as a reinforcing phase in lightweight metal matrix composites (MMC). In the present work, the sol-gel technique has been employed to obtain TiO2 coating on the surface of commercial multiwall carbon nanotubes (MWCNT). The aim of such coating is to improve the thermal stability of MWCNT in oxidize environment, which is necessary in most of MMC processing routes. Calcination in inert atmosphere was performed in order to crystallize a stable coating phase. The hybrid CNT/TiO2 nanocomposite was characterized by X-Ray Diffractometry (XRD), Raman spectroscopy, Thermogravimetry (TGA) and Field Emission Gun - Scanning Electron Microscopy (FEG-SEM). The coating structure was observed to change from anatase to rutile, as the calcination temperature increases from 500 to 1000 degrees C. Results from thermogravimetric analysis showed that the samples calcined at 1000 degrees C were more resistant to oxidation at high temperatures.en
dc.description.affiliationUniv Fed Sao Paulo UNIFESP, Inst Ciencia & Tecnol, Lab Metais & Proc Avancados, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo UNIFESP, Inst Ciencia & Tecnol, Lab Metais & Proc Avancados, Sao Jose Dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCNPq
dc.description.sponsorshipIDCNPq: 443395/2014-4
dc.format.extent96-103
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2017-0406
dc.identifier.citationMaterials Research-Ibero-American Journal Of Materials. Sao Carlos, v. 20, p. 96-103, 2017.
dc.identifier.doi10.1590/1980-5373-MR-2017-0406
dc.identifier.fileS1516-14392017000700096.pdf
dc.identifier.issn1516-1439
dc.identifier.scieloS1516-14392017000700096
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55323
dc.identifier.wosWOS:000425606700014
dc.language.isoeng
dc.publisherUniv Fed Sao Carlos, Dept Engenharia Materials
dc.relation.ispartofMaterials Research-Ibero-American Journal Of Materials
dc.relation.ispartof7th Latin American Conference on Metastable and Nanostructured Materials (NANOMAT)
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCarbon nanotubesen
dc.subjectTiO2en
dc.subjectsol-gelen
dc.subjectsurface coatingen
dc.titleProduction of TiO2 Coated Multiwall Carbon Nanotubes by the Sol-Gel Techniqueen
dc.typeinfo:eu-repo/semantics/article
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