Figure 2.

The modification of CNTs. Schematic illustration of modification of CNTs with various molecules. 1, Dhar et al. [70]; 2, Jia et al. [13]; 3, Georgakilas et al. 2002 [16]; 4, Peng et al. 1998; 5, Liu et al. [91]; 6, Gu et al. 2008; 7, Son et al. 2008; 8, Klingeler et al. 2009.