nanotubes;
electric arc discharge;
etching;
vibrational properties characterization;
D O I:
10.1016/j.diamond.2005.11.002
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
High-yield single-wall carbon nanotubes (SWNTs) have been mass-produced by dc arc discharge evaporation of a carbon electrode including 1 at.% Fe catalyst in hydrogen mixed gas [i.e., H-2-inert gas (Ne, Ar, Kr, Xe), or H-2-N-2]. The as-grown SWNTs have high-crystallinity due to the high temperature of arc plasma, and the coexisting Fe catalyst nanoparticles are embedded in very thin amorphous carbon because of the in situ etching effects of hydrogen. A macroscale purification technique, which is a whole liquid-phase purification process, first reflux treatment in H2O2 solution and then rinsing with hydrochloric acid, has been developed to eliminate the coexisting Fe catalyst nanoparticles and obtain SWNTs with purity higher than 90 at.%. (c) 2005 Elsevier B.V. All rights reserved.
机构:
Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R ChinaAcad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Cheng, HM
;
Li, F
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机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Li, F
;
Su, G
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机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Su, G
;
Pan, HY
论文数: 0引用数: 0
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机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Pan, HY
;
He, LL
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
He, LL
;
Sun, X
论文数: 0引用数: 0
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机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Sun, X
;
Dresselhaus, MS
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
机构:
Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R ChinaAcad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Cheng, HM
;
Li, F
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Li, F
;
Su, G
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Su, G
;
Pan, HY
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Pan, HY
;
He, LL
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
He, LL
;
Sun, X
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
Sun, X
;
Dresselhaus, MS
论文数: 0引用数: 0
h-index: 0
机构:Acad Sinica, Inst Met Res, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China