Page 291 - Polymer-based Nanocomposites for Energy and Environmental Applications

Polymer nanocomposite materials in energy storage: Properties and applications 261

Fig. 9.6 (A) SEM image of PANI nanofiber, (B) SEM image of PANI-CNT nanocomposite,
1
(C) cyclic voltammetry for PANI, CNT, and PANI-CNT composite at 10 mV s , (D) AC
impedance spectra for PANI-CNT composite before and after 1000 cycling, and (E,F) cyclic
stability for PANI and PANI-CNT composite [196].

The result was homogenous nanocomposite with PANI fibers absorbed on the
graphene surface or inserted between the graphene sheets. Nanocomposite with 5%
PANI showed high electric conductivity and specific capacitance found to be
480 F g 1 at the discharge rate of 0.1 A g 1 [203]. Mini et al. [206] prepared nano-
composite of graphene with polypyrrole by depositing nanolayers of graphene to
function as scaffold for the electropolymerization of pyrrole. Scanning electron
microscopy results (Fig. 9.7A) show that PPy and GNS form thin-film structure,
whereas the nanocomposite possesses porous 3D structure. It is well known that