6533b82bfe1ef96bd128e120

RESEARCH PRODUCT

Morphology and structure of electrospun CoFe2O4/multi-wall carbon nanotubes composite nanofibers

Francesca NanniMarilena CarboneGualtiero GusmanoRoberto MatassaF.r. LamastraLuca Camilli

subject

Materials scienceScanning electron microscopeGeneral Chemical Engineeringa. nanofiberMineralogyCarbon nanotubeIndustrial and Manufacturing Engineeringlaw.inventioncobalt ferritelawDifferential thermal analysismorphologytemEnvironmental ChemistryHigh-resolution transmission electron microscopynanofiberelectrospinningSettore CHIM/03 - Chimica Generale e Inorganicaa. nanofiber; carbon nanotubes; cobalt ferrite; electron microscopy; electrospinning; morphology; mwcnt; nanofiber; temcarbon nanotubeselectron microscopyGeneral ChemistryElectrospinningThermogravimetryChemical engineeringmwcntTransmission electron microscopyNanofiber

description

CoFe2O4/multiwall carbon nanotubes (MWCNTs) composite nanofibers were produced by electrospinning a dispersion of MWCNTs in a solution of polyvinylpyrrolidone, iron(III) nitrate nonahydrate, cobalt (II) acetate tetrahydrate, absolute ethanol and H2O. Microstructure was examined by scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HR-TEM). Thermal behaviour was studied by thermogravimetry and differential thermal analysis (TG-DTA) and phase analysis of calcined fibers was performed by X-ray diffraction (XRD). Upon thermal treatment at 450 °C defect-free, randomly oriented composite fibers having a mean diameter of 60 ± 10 nm were obtained. The results show that the presence of MWCNTs does not affect the spinel cubic phase formation.

yearjournalcountryeditionlanguage
2010-08-01
10.1016/j.cej.2010.05.025http://hdl.handle.net/11573/393922