Doped fullerenes cations

Fig. 34.11. Ground triplet (d D2 ) and excited singlet (s C2a) states of (Cgo) with two views (for the alkali cation doped exohedral fullerenes), and spin-containing endohedral fullerenes [128,148].

It has also been seen that two nanomaterials can be functionalized with each other. One example is the synthesis of fullerene (C6o)-functionalized GNPs by the coupling of the fullerene molecules with peripheral amine moieties on the particle surface [66]. On the other hand, GNPs were selectively attached to chemically functionalized surface sites on nitrogen-doped carbon nanotubes. A cationic polyelectrolyte was adsorbed on the surface of the nanotubes by electrostatic interaction between carboxyl groups on the chemically oxidized nanotube surface and polyelectrolyte chains. 

The electrochemical behavior of the crystalline fullerene films is also influenced by the medium. Dissolution of the reduced films is quite important for the films doped with small cations in acetonitrile. It is significantly reduced for large tetraalkylammonium cations or especially so for the polypyridine complex metal cations in acetonitrile, probably because of relatively high polarizability of the aromatic ligands and fullerene anions in the latter case. The extent of dissolution is also a function of the extent of film reduction (see Table 7.9). For solid polymer electrolytes (see refs. [165,167]), the polymer may take part in the... 

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