Steam purification for the removal of graphitic shells coating catalytic particles and the shortening of single-walled carbon nanotubes

被引：78

作者：

Ballesteros, Belen ^{[1
]}

Tobias, Gerard ^{[1
]}

Shao, Lidong ^{[1
]}

Pellicer, Eva ^{[2
]}

Nogues, Josep ^{[2
,3
]}

Mendoza, Ernest ^{[2
]}

Green, Malcolm L. H. ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England

[2] ICN, E-08193 Barcelona, Spain

[3] ICREA, E-08193 Barcelona, Spain

来源：

SMALL | 2008年 / 4卷 / 09期

关键词：

carbon nanotubes; catalysis; purification; shortening; steam;

D O I：

10.1002/smll.200701283

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Purification and shortening of single-walled carbon nanotubes (SWNTs) is carried out by treatment with steam. During the steam purification the graphitic shells coating the catalytic metal particles are removed. Consequently, the exposed catalytic particles can be easily dissolved by treatment with hydrochloric acid. No damage to the carbon nanotube tubular structure is observed, even after prolonged treatment with steam. Samples are characterized by HRTEM, TGA, magnetic measurements, Raman spectroscopy, AFM, and XPS.

引用

页码：1501 / 1506

页数：6

共 27 条

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