0000000000681478

AUTHOR

Marilena Carbone

showing 6 related works from this author

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

2010

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 s…

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
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Oxidized graphene in ionic liquids for assembling chemically modified electrodes: a structural and electrochemical characterization study

2012

Dispersions of graphene oxide (GO) nanoribbons in ionic liquids, ILs (either 1-butyl-3-methylimidazolium chloride (BMIM-Cl-) or 1-butylpyridinium chloride (-Bupy-Cl-)) have been used to assemble modified screen printed electrodes (SPEs). The graphene oxide/ionic liquid dispersions have been morphologically and structurally characterized by the use of several techniques: X-ray photoelectron spectroscopy (XPS), Fourier transform-infrared (FT-IR) spectroscopy, high-resolution-transmission electron microscopy (HR-TEM). The assembled modified SPEs have then been challenged with various compounds and compared to several electro-active targets. In all cases high peak currents were detected, as wel…

Settore CHIM/03 - Chimica Generale e InorganicaChemistryGrapheneAnalytical chemistryOxideGlassy carbonElectrochemistryAnalytical Chemistrylaw.inventionchemistry.chemical_compoundX-ray photoelectron spectroscopyChemical engineeringlawElectrodeIonic liquidSettore CHIM/01 - Chimica AnaliticaGraphitegraphene Ionic Liquids sensorsSettore CHIM/02 - Chimica Fisica
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Graphene and ionic liquids new gel paste electrodes for caffeic acid quantification

2015

Abstract Graphene/ionic liquids nanocomposite gels were synthesized by an electrochemical etching approach and fully characterized under a morphological and structural point of view. For this purpose, several analytical techniques were applied, as HR-TEM/EDX (High Resolution-Transmission Electron Microscopy/Energy Dispersive X-Ray Analysis); FE-SEM/EDX (Field Emission-Scanning Electron Microscopy/Energy Dispersive X-Ray Analysis); XPS (X-Ray Photoelectron Spectroscopy); FT-IR (Fourier Transform-Infrared Spectroscopy) and electrochemical techniques. After the characterization study, nanocomposite-gel paste electrodes were assembled, exhibiting a selective and specific detection toward the ca…

Analytical chemistrySurfaces Coatings and FilmAnti-oxidant agentsCondensed Matter PhysicAnti-oxidant agentIonic liquidElectrochemistrylaw.inventionNanocompositeschemistry.chemical_compoundX-ray photoelectron spectroscopylawgraphene Ionic liquids; nanocomposites; electrochemistry; caffeic acid; anti-oxidant agentsMaterials ChemistryElectrochemistryMoleculeElectrical and Electronic EngineeringInstrumentationSettore CHIM/02 - Chimica FisicaMaterials Chemistry2506 Metals and AlloySettore CHIM/03 - Chimica Generale e InorganicaDetection limitCaffeic acidNanocompositeNanocompositeGrapheneElectronic Optical and Magnetic MaterialMetals and AlloysCondensed Matter Physicsgraphene Ionic liquidsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsIonic liquidschemistryChemical engineeringIonic liquidElectrode2506Graphene
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Thermal Properties, Raman Spectroscopy and Tem Images of Neutron-Bombarded Graphite

2013

Neutron-irradiated graphite to a total dose of 3.6 × 1016 n cm−2 was studied by DSC, Raman spectroscopy and transmission electron microscopy (TEM). The Wigner energy of neutron-irradiated graphite was 9.5 J/g as measured by DSC; it was released with an exothermal peak at 220°C. The Raman spectroscopy has confirmed the expected effect caused by neutron irradiation of the graphite substrate. The TEM imaging has shown that neutron-irradiated graphite can be effectively exfoliated by sonication in comparison to pristine graphite, which under similar conditions does not exfoliate at all. The interstitial Frenkel defects in neutron-irradiated graphite are intercalated between the graphene layers …

inorganic chemicalsMaterials scienceSonicationAnalytical chemistrylaw.inventionsymbols.namesakelawneutrons irradiationGeneral Materials ScienceNeutronSettore CHIM/01 - Chimica AnaliticaGraphitePhysical and Theoretical ChemistryWigner effectSettore CHIM/02 - Chimica FisicaWigner energySettore CHIM/03 - Chimica Generale e Inorganicaintegumentary systemGrapheneOrganic ChemistrygrapheneGraphite neutrons irradiation graphene exfoliation Wigner energy Raman spectroscopy TEM imagingtechnology industry and agricultureGraphite neutrons irradiation graphene exfoliation Wigner energy Raman spectroscopyTEM imagingexfoliationExfoliation jointAtomic and Molecular Physics and OpticsTransmission electron microscopyRaman spectroscopyTEM imagingbiological sciencessymbolsGraphitelipids (amino acids peptides and proteins)Raman spectroscopy
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Nickel(II) 3,4;9,10-perylenediimide bis-phosphonate pentahydrate: A metal-organic ferromagnetic dye

2012

The new metal organic compound nickel(II) 3,4;9,10-perylenediimide bis-phosphonate pentahydrate, i.e. Ni-2[(PDI-BP)-(H2O)(2)]center dot 3H(2)O (1), has been synthesized and its structural and magnetic properties have been studied. Reaction of 3,4;9,10-perylenediimide bisphosphonate (PDI-BP, hereafter) ligand and nickel chloride in water resulted in the precipitation of a red and poorly crystalline solid (1). As the solid shows a poor crystalline organization of aggregates, the energy dispersive X-ray diffraction analysis (EDXD) technique has been used to obtain short-range order structural information of the single nanoaggregates by radial distribution function analysis. The overall structu…

Settore CHIM/03 - Chimica Generale e InorganicaPrecipitation (chemistry)LigandInorganic chemistryStackingchemistry.chemical_elementPhosphonateChlorideInorganic Chemistrychemistry.chemical_compoundCrystallographyNickelFerromagnetismchemistrymedicinePhysical and Theoretical ChemistryPerylenetem; self-assembly; hybrid materials; energy dispersive x-ray diffraction; ferromagnetic dye; layered materialsSettore CHIM/02 - Chimica Fisicamedicine.drug
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Sensor Properties of Pristine and Functionalized Carbon Nanohorns

2016

Nanodispersions of pristine single-wall carbon nanohorns (i.e., p-SWCNHs) and oxidized-SWCNHs (i.e.; o-SWCNHs) were used to modify screen printed electrode (SPE). p-SWCNHs and o-SWCNHs were fully characterized by using several analytical techniques, as: HR-TEM (High Resolution-Transmission Electron Microscopy), FE-SEM/EDX (Field Emission-Scanning Electron Microscopy/Energy Dispersive X-ray Analysis), Raman spectroscopy, thermogravimetric analysis, differential thermal analysis (DTA), and the Brunauer-Emmett-Teller (BET) method. The chemically modified SPEs were also characterized with Cyclic Voltammetry (CV), using several different electro-active targets. In all cases, p-SWCNHs showed bett…

Carbon NanohornThermogravimetric analysisScreen Printed ElectrodesMaterials scienceAnalytical chemistrychemistry.chemical_element02 engineering and technologyGlassy carbon010402 general chemistryElectrochemistry01 natural sciencesCarbon NanohornsAnalytical Chemistrysymbols.namesakeDifferential thermal analysisElectrochemistrySettore CHIM/01 - Chimica AnaliticaSingle-WallCarbon Nanohorns; Screen Printed Electrodes; Single-Wall; Analytical Chemistry; ElectrochemistryScreen Printed Electrode021001 nanoscience & nanotechnology0104 chemical scienceschemistryElectrodesymbolsCyclic voltammetry0210 nano-technologyRaman spectroscopyCarbonElectroanalysis
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