Purity assessment of multiwalled carbon nanotubes by Raman spectroscopy

  • Químicas I
  • Germain S
  • Huang Y
 et al. 
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Abstract

Multiwalled carbon nanotubes (MWNT) modified by 2.2′-azoiso- butyronitrile (AIBN) were incorporated into methyl methacrylate (MMA) by sonochemistry method, resulting in homogenous dispersion of MWNT, which makes possible to obtain flexible conductive polymer-matrix nanocomposites films of PMMA, with MWNT concentrations ranging from 0 to 0.5 wt{%}. Modified MWNT (AIBN-MWNT) were studied by Fourier transform infrared (FT-IR), Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and through visual observations in order to compare the dispersion in 2-propanone and toluene with that of pristine MWNT. Synthesized PMMA-AIBN-MWNT films were studied by FT-IR and Raman spectroscopy. Using FT-IR for the AIBN-MWNT it was not possible to identify any group or groups attached to the nanotubes. Raman spectroscopy shows a small modification in the Lorentzian peaks ratio ID/G of AIBN-MWNT, meanwhile XPS showed that atomic compositions does not change for AIBN-MWNT compared to the pristine nanotubes. Also by impedance it was analyzed the conductivity of PMMA-MWNT films and the results showed a threshold percolation at 0.5 wt{%}. FT-IR and Raman analyses for PMMA-AIBN-MWNT composite indicate a covalent bonding between PMMA and MWNT due to the opening of $π$-bonds of the nanotubes, which is related with a possible proposed reaction scheme. {©} 2013 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • 'Focusing' effect
  • - see front matter
  • -nanotubes
  • 0370-1573
  • 1 617 253 6827
  • 2004 elsevier b
  • 27Al-MAS-NMR
  • 5-ht
  • 78.
  • 78.30.Na
  • 78.30.−j
  • 78.55.−m
  • 78.67.Ch
  • A. Carbon nanotubes
  • A. Metal-matrix composites (MMCs)
  • A. Nanocomposites
  • A356-CNT composite
  • A356–SiCp composite
  • Acetonitrile
  • Adsorption controlled growth
  • Aerosols
  • Agglomeration
  • Aircraft brake disc
  • Al(0) nanoparticles
  • Al(acac)3
  • Alanes
  • Alignment
  • Alloys
  • Aluminium alloys
  • Aluminum
  • Aluminum matrix composite
  • Aluminum nano particles
  • Aluminum-CNT
  • Antisolvent diffusion
  • Applications
  • Arc discharge
  • B. Fracture toughness
  • B. Impact behavior
  • B. Interface
  • B. Mechanical properties
  • B. Thermal properties
  • Ball milling
  • Ballistic impact
  • Ballistic limit
  • Ballistic resistance
  • Benzildiethylenetriamine
  • Bio-compatibility
  • Borohydride reduction
  • C. Crack
  • Capillary filling
  • Carbon
  • Carbon composites
  • Carbon nano-tube (CNT)
  • Carbon nanofibres
  • Carbon nanotube
  • Carbon nanotube reinforced composites
  • Carbon nanotubes
  • Carbon nanotubes (CNTs)
  • Catalytic property
  • Cell models
  • Ceramics
  • Chemical reduction
  • Chemical synthesis
  • Chemical vapor deposition
  • Chemical vapor deposition (CVD)
  • Cold spraying
  • Collagen
  • Collagenous tissue
  • Compocasting
  • Composite
  • Composite spheres
  • Composites
  • Computer simulations
  • Conductive ink
  • Constitutive relation
  • Continuum damage mechanics
  • Controlled drug delivery
  • Copper nanoparticles
  • Cu nanoparticle
  • Cu nanoparticles
  • Cyclic plasticity
  • D. Scanning/transmission electron microscopy (STEM
  • Department of Defense
  • Diffusion
  • Diffusion controlled growth
  • Diffusional layer
  • Disjoining pressure
  • Dispersion
  • Dual matrix composites
  • Dynamic deformation
  • E-glass/epoxy
  • E. Powder processing
  • E. Sintering
  • Elastic modulus
  • Elastin
  • Electric conductivity
  • Electroless plating
  • Electron-energy-loss spectroscopy characterization
  • Electrosprays
  • Elements
  • Energy absorbing mechanisms
  • Expandable graphite
  • FRP laminates
  • Fabrication
  • Fick's Law
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  • Fluorescence
  • Functionalization
  • Glucose
  • Graphene
  • Growth
  • Hardness
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  • Hybrid approach
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  • Image analysis
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  • Indomethacin
  • Inert conditions
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  • Interaction
  • Interface structure
  • Ionic diffusion
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  • Lithium aluminum hydride
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  • Material engineering
  • Mathematical diffusion models
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  • Mechanical properties
  • Mechanical property
  • Metal matrix composite
  • Metal matrix composite (MMC)
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  • Metal oxide solubility
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  • Metals
  • Microstructure
  • Monodisperse colloidal nanoparticles
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  • Multi-wall nanotubes
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  • Raman
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  • Sodium hypophosphite
  • Sol-Gels (xerogels)
  • Sol-gel
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  • Spark plasma extrusion
  • Stabilization
  • Stir casting
  • Straight fiber
  • Stress wave attenuation
  • Stretched exponential (Weibull) function
  • Supercritical water
  • Superhydrophobicity
  • Surface characterization
  • Surfactants
  • Synthesis
  • T300 carbon/epoxy
  • TEM
  • Thermal conductivity
  • Thermal properties
  • Thermal property
  • Thermal study
  • Thermogravimetric analysis
  • Titania
  • Titania nanotubes
  • Transdermal
  • Transdermal diffusion
  • Transition metal
  • Transport
  • Two-step reduction method
  • UV-Visible spectroscopy
  • Ultrasonic techniques
  • Vibrational properties
  • Vibrations
  • Water suspensions
  • Wettability
  • Wetting
  • Wood-Plastics composites
  • Woven fabric composite
  • X-ray diffraction
  • Zinc
  • Zinc oxide
  • Zinc sulfide
  • a
  • a356
  • abrasion resistance
  • adhesion
  • agitaci{ó}n mec{á}nica
  • al nanoparticles
  • all rights reserved
  • aluminium
  • aluminum matrix composites
  • assembly
  • b
  • ball milling
  • benefit analysis
  • biomasa
  • camphor
  • carbon
  • carbon nanotube
  • carbon nanotube fibers
  • carbon nanotubes
  • catalyst
  • catalyst-free cnt synthesis
  • challenges
  • chemical
  • chemical synthesis
  • chemical vapor deposition
  • chemisorption
  • cnt
  • cnt growth
  • cnt industrial production
  • cnt mass production
  • cnt precursor
  • co 2
  • coatings
  • compocasting
  • compoforjado
  • copper nanoparticle
  • corresponding author
  • cost
  • cvd
  • d
  • del lactante
  • desenvolvimento
  • dispersion
  • do lactente
  • dolomita
  • dresselhaus
  • e
  • e-mail address
  • edu
  • electrical transport measurements
  • fax
  • finite difference method
  • finite element method
  • functional applications
  • gas
  • gasificaci{ó}n
  • graphene
  • graphene oxide composite
  • horno rotatorio
  • hybrids
  • in-situ synthesis
  • interfacial phenomena
  • layer-by-layer
  • least square algorithm
  • light metals
  • liquid
  • lithium ion batteries
  • luminescence
  • m
  • matrix composites
  • mechanical properties
  • mechanism
  • metal matrix composite
  • metal matrix composites
  • metalurgia semi-
  • mgm
  • millie
  • mit
  • multiwalled carbon nanotube
  • nano-composites
  • nanocomposites
  • nanoindentation hardness
  • nanostructures
  • no inert gas protection
  • opportunities
  • optical properties
  • patog{é}nica nos casos de
  • patr{ó}n respiratorio
  • perante altera{ç}{õ}es no equil{í}brio
  • ph
  • photoluminescence
  • physical properties
  • polymer
  • porosity
  • powder metallurgy
  • precursors
  • processing
  • quantum effects
  • quimiorrecep-
  • raman scattering
  • redes neuronales
  • reinforcement
  • reinforcement distribution
  • s
  • sandwich-like structure
  • scratch hardness
  • semisolid stirring
  • sic p composite
  • smsl
  • sol-gel
  • solid
  • spark plasma sintering
  • strengthening
  • stress
  • surface plasmon resonance
  • surface pre-treatment
  • synthesis
  • s{í}ndroma de morte s{ú}bita
  • s{í}ndrome de muerte s{ú}bita
  • tensile properties
  • tensile strength
  • thermal
  • tor
  • transportador de 5-ht
  • uniform dispersion
  • vapor deposition
  • {á}cido-

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Authors

  • Industrias Químicas

  • Saint Germain

  • Yan Yan Huang

  • Eugene M Terentjev

  • Toru Noguchi

  • Akira Magario

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