Title of article :
Spectroscopic and thermal characterization of carbon nanotubes functionalized through diazonium salt reduction
Author/Authors :
Malingappa Pandurangappa، نويسنده , , Thippeswamy Ramakrishnappa، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2010
Abstract :
Chemical reduction of anthraquinone diazonium chloride (Fast Red AL salt) in presence of hypophosphorous acid and carbon nanotubes results in anthraquinonyl functionalized carbon nanotubes. The surface functionalized moieties have been examined electrochemically by immobilizing them onto the surface of basal plane pyrolytic graphite electrode and studying its voltammetric behaviour. The effect of pH, and scan rate has revealed that the modified species are confined on the electrode surface. The spectroscopic characterization of the modified single walled carbon nanotubes using Fourier transform infrared spectroscopy, X-ray photoemission spectroscopy, thermogravimetric analysis and transmission electron microscopy have revealed that the modifier molecules are covalently bonded on the surface of carbon nanotubes.
Keywords :
electron microscopy , Electrochemical technique , Derivatization , Single walled carbon nanotubes
Journal title :
Materials Chemistry and Physics
Journal title :
Materials Chemistry and Physics