Microwave-induced controlled purification of single-walled carbon nanotubes without sidewall functionalization

作者：Chen Yuhong; Iqbal Zafar; Mitra Somenath^*

来源：Advanced Functional Materials, 2007, 17(18): 3946-3951.

DOI：10.1002/adfm.200700440

A microwave-induced controlled method for the purification of single-walled carbon nanotubes (SWCNTs) by removing residual metal catalysts and carbonaceous impurities is reported. Compared to conventional strong acid treatment, this one-step method uses dilute acids and complexing agents and reduces the reaction times to the order of minutes. Furthermore, the SWCNTs retain their chemical and physical properties and are not functionalized. Electron microscopy, Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and atomic absorption (AA) spectrometry studies were used to characterize the purified SWCNTs.

• 出版日期2007-12-17