Effective Purification of Single-Walled Carbon Nanotubes with Reversible Noncovalent Functionalization

详细信息    查看全文

• 作者：Fushen Lu ; Xin Wang ; Mohammed J. Meziani ; Li Cao ; Leilei Tian ; Matthew A. Bloodgood ; Jackie Robinson ; Ya-Ping Sun
• 刊名：Langmuir
• 出版年：2010
• 出版时间：May 18, 2010
• 年：2010
• 卷：26
• 期：10
• 页码：7561-7564
• 全文大小：863K
• 年卷期：v.26,no.10(May 18, 2010)
• ISSN：1520-5827

文摘

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.