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

INOR 626

Yuhong Chen, yc58@njit.edu, Department of Chemistry, New jersey Institute of Technology, University Heights, Newark, NJ 07102 and Somenath Mitra, mitra@njit.edu, New Jersey Institute of Technology, Department of Chemistry and Environmental Science, Newark, NJ 07102.
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 Spectroscopy, Thermogravimetric Analyses and Atomic Absorption spectrometry studies were used to characterize the purified SWCNTs.
 

Nanoscience: Synthesis and Characterization
7:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007