Functionalization and Dissolution of Nitric Acid Treated Single-Walled Carbon Nanotubes

被引：139

作者：

Worsley, Kimberly A.

Kalinina, Irina

Bekyarova, Elena

Haddon, Robert C. ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Dept Chem & Environm Engn, Riverside, CA 92521 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 50期

基金：

美国国家科学基金会;

关键词：

SIDEWALL FUNCTIONALIZATION; PURITY EVALUATION; CHROMATOGRAPHIC PURIFICATION; EXTINCTION COEFFICIENTS; OXIDATION; SPECTROSCOPY; SEPARATION; CHEMISTRY; DISPERSABILITY;

D O I：

10.1021/ja906267g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report an investigation of the nature and chemical functionalization of nitric acid treated single-walled carbon nanotubes (SWNTs). SWNTs washed with diluted sodium hydroxide solutions were characterized by near-IR, mid-IR, and Raman spectroscopy as well as TEM, and the remaining carboxylic acid content was determined to assess the effect of base washing on the removal of carboxylated carbon fractions, which are generated by the nitric acid treatment. It was found that even after exhaustive washing with aqueous base the purified SWNTs contain carboxylic acid groups in sufficient quantity to prepare high quality soluble SWNT materials by covalent functionalization with octadecylamine.

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页码：18153 / 18158

页数：6

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