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Title: Synthesis, Characterization and Properties of Single-Walled Carbon Nanohorns
Authors: Pramoda, K.
Moses, Kota
Ikram, Mohd
Vasu, K.
Govindaraj, A.
Rao, C. N. R.
Keywords: Inorganic & Nuclear Chemistry
Single-Walled Nanohorns
Sub-Merged Arc Discharge
Dahlia-Like Nanohorns
Doped Nanohorns
Molecular Charge-Transfer
Noncovalent Functionalization
Issue Date: 2014
Publisher: Springer/Plenum Publishers
Citation: Pramoda, K; Moses, K; Ikram, M; Vasu, K; Govindaraj, A; Rao, CNR, Synthesis, Characterization and Properties of Single-Walled Carbon Nanohorns. Journal of Cluster Science 2014, 25 (1) 173-188,
Journal of Cluster Science
Abstract: Single-walled nanohorns (SWNHs) have been prepared by sub-merged arc discharge of graphite electrodes in liquid nitrogen. The samples were examined by scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. Nitrogen and boron doped SWNHs have been prepared by the sub-merged arc discharge method using melamine and elemental boron as precursors. Intensification of Raman D-band and stiffening of G-band has been observed in the doped samples. The electrical resistance of the SWNHs varies in opposite directions with nitrogen and boron doping. Functionalization of SWNHs through amidation has been carried out for solubilizing them in non-polar solvents. Water-soluble SWNHs have been produced by acid treatment and non-covalent functionalization with a coronene salt. SWNHs have been decorated with nanoparticles of Au, Ag and Pt. Interaction of electron donor (tetrathiafulvalene, TTF) and acceptor molecules (tetracyanoethylene, TCNE) with SWNHs has been investigated by Raman spectroscopy. Progressive softening and stiffening of Raman G-band has been observed respectively with increase in the concentration of TTF and TCNE.
Description: Restricted Access
ISSN: 1040-7278
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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