Rapid acid-mediated purification of single-walled carbon nanotubes with homogenization of bulk properties

被引：11

作者：

Li, Junxin

Chajara, Khalil

Lindgren, Jan

Grennberg, Helena

机构：

[1] Uppsala Univ, Div Organ Chem, SE-75123 Uppsala, Sweden

[2] Hebei Univ Sci & Technol, Sch Sci, Shijiazhuang 050018, Peoples R China

[3] Uppsala Univ, Dept Chem Mat, SE-75121 Uppsala, Sweden

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2007年 / 7卷 / 4-5期

关键词：

singe-walled carbon nanotube; aqueous nitric acid; purification; ELECTRONIC-STRUCTURE; SIDEWALL FUNCTIONALIZATION; SELECTIVE REMOVAL; SEPARATION; PROTONATION; ION;

D O I：

10.1166/jnn.2007.336

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A rapid, mild and readily scaleable method for purification and isolation of single-walled nanotubes (SWNTs) using aqueous nitric acid that, in only 1-2 hours at reflux temperature, not only decrease the content of residual metal particles but also the relative ratio of small diameter and metallic NTs. The acid-treated SWNTs have been characterised by TEM, FT-IR, and Raman spectroscopy (514 and 783 cm(-1)). The results are discussed in relation to observations from other acid-mediated treatments and the reactive chemical species involved at different conditions.

引用

页码：1525 / 1529

页数：5

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