Functionalization and dissolution of nitric acid treated single-walled carbon nanotubes

Journal of the American Chemical Society
Kimberly A WorsleyRobert C Haddon

Abstract

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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Citations

Nov 3, 2012·Accounts of Chemical Research·Elena BekyarovaRobert C Haddon
Nov 14, 2012·Environmental Science & Technology·Billy SmithD Howard Fairbrother
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Oct 8, 2016·Advanced Materials·Albert Tianxiang LiuMichael S Strano
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