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Dispersion of Single‐Walled Carbon Nanotubes by Using Surfactants: Are the Type and Concentration Important?

2008; Wiley; Volume: 14; Issue: 20 Linguagem: Inglês

10.1002/chem.200800357

1521-3765

Ji‐Yong Shin, Thathan Premkumar, Kurt E. Geckeler,

Nanopore and Nanochannel Transport Studies

Facile dispersion: A facile method to disperse SWNTs in water by using three different types of surfactants, such as neutral, cationic, and anionic, is described. Surprisingly, the surfactant Igepal (neutral) could disperse SWNTs well at a low minimum concentration compared with cetyltrimethylammonium bromide (cationic) or sodium dodecylsulfate (anionic). This is the first time the very efficient surfactant Igepal is introduced for the dispersion of SWNTs.