期刊
LANGMUIR
卷 26, 期 10, 页码 7561-7564出版社
AMER CHEMICAL SOC
DOI: 10.1021/la904361e
关键词
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资金
- Air Force Office of Scientific Research (AFOSR)
- Center for Advanced Engineering Fibers and Films at Clemson University
- Palmetto Academy
An effective purification method for single-walled carbon nanotubes (SWNTs) based on a combination of oxidative acid treatment and reversible noncovalent functionalization with 1-pyreneacetic acid is reported. The functionalization was selective toward the nanotubes, allowing a nearly complete removal of residual metal catalysts and carbonaceous impurities. The resulting highly pure SWNTs remained solvent-dispersible, a valuable feature to potential applications that require solvent-based processing. The functionalization agent could be recovered quantitatively and reused. Effects of the purification process on the composition and properties of the nanotube sample were evaluated.
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