Synthesis, Characterization and Properties of Single-Walled Carbon Nanohorns

被引：13
|
作者：
Pramoda, K. [1 ,2 ]
Moses, Kota [3 ]
Ikram, Mohd [1 ,2 ]
Vasu, K. [1 ,2 ]
Govindaraj, A. [1 ,2 ,4 ]
Rao, C. N. R. [1 ,2 ,3 ,4 ]
机构：
[1] Jawaharlal Nehru Ctr Adv Sci Res, New Chem Unit, Chem & Phys Mat Unit, CSIR Ctr Excellence Chem, Bangalore 560064, Karnataka, India
[2] Jawaharlal Nehru Ctr Adv Sci Res, Int Ctr Mat Sci, Bangalore 560064, Karnataka, India
[3] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India
[4] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
来源：
JOURNAL OF CLUSTER SCIENCE | 2014年 / 25卷 / 01期
关键词：
Single-walled nanohorns; Sub-merged arc discharge; Dahlia-like nanohorns; Charge-transfer; Doped nanohorns; ARC-DISCHARGE; NONCOVALENT FUNCTIONALIZATION; ELECTRONIC-STRUCTURE; LIQUID-CRYSTALLINE; GRAPHENE; SOLUBILIZATION; NANOPARTICLES; FLUORESCENCE; ADSORPTION; NANOTUBES;
D O I：
10.1007/s10876-013-0652-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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.
引用
收藏
页码：173 / 188
页数：16
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