期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 122, 期 2-3, 页码 567-573出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2010.03.048
关键词
Derivatization; Single walled carbon nanotubes; Electrochemical technique; Electron microscopy
资金
- Department of Science & Technology, New Delhi, India
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. (C) 2010 Elsevier B.V. All rights reserved.
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