Dispersion and functionalization of single-walled carbon nanotubes (SWCNTS) for nanocomposite applications

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    • Contributors:
      Institut des Matériaux Jean Rouxel (IMN); Ecole Polytechnique de l'Université de Nantes (EPUN); Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST); Université de Nantes (UN)-Université de Nantes (UN); Novo Nordisk Foundation Center for Protein Research (CPR); Faculty of Health and Medical Sciences; University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU)
    • Publication Information:
      EDP Sciences, 2017.
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    • Abstract:
      We present an easy and reliable method of functionalizing and dispersing single-walled carbon nanotubes (SWCNTs) for nanocomposite production. This was achieved via a mixture of the concentrated acids HNO3 /H2 SO4 , followed by sonication in appropriate solvents (Ethanol, Acetone and/or Dimethylformamide). SWCNTs were functionalized to attach carboxylic moieties on the walls of the nanotubes, which aided in the production of SWCNTs suspensions in acetone, ethanol and dimethylformamide in which nanotubes remained dispersed for a period of two (2) weeks. Energy dispersion analysis (EDS), scanning electron microscopy (SEM) and Raman spectroscopy were used to characterize the functionalized SWCNTs.
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