Synthesis and characterization of polypyrrole/graphite composites and study of their electrical and electrochemical properties

A novel optical aerosol detector utilizing an optic fiber with conductive polymer coating

“…3, such as conductivity, surface topology and transmissivity. The conductivity of the synthesized PPy nanofilm was found to be $ 1.6 S/cm (Sree et al, 2002), which is much less than those in earlier reports (Konwer & Dolui, 2010;Tang et al, 2009). Their synthesis methods differ from the method presented here and have complex operation.…”

Heterogeneous NiCo2O4@polypyrrole core/sheath nanowire arrays on Ni foam for high performance supercapacitors

“…3b), the characteristic peaks of NiCo 2 O 4 appear at about 560 and 648 cm À1 , showing slightly red-shift as compared with the pure NiCo 2 O 4 . The main characteristics peaks of PPy are assigned as follows: the peaks at 2927 and 2854 cm À1 can be assigned to the NeH characteristic bond present in aromatic amines [40], the peak at 1628 cm À1 corresponds to the vibration of C]C/CeC [41], the peak at about 1578 cm À1 is associated with the symmetric stretching vibration of C]C bond in the PPy rings [42], the band at 1400 is assigned to the CeN stretching vibration [40], and the band at 1285 cm À1 corresponds to CeH in-plane vibration [43]. The bands at 1050 and 937 cm À1 reflect the NeH in-plane deformation vibration and the CeH out-of-plane vibration.…”

Synthesis of Highly Conductive PPy/Graphene/MnO2 Composite Using Ultrasonic Irradiation

“…Table 1 shows the conductivity of monomer and composites. By ultrasound technique, pure PPy was obtained more high conductivities than the reports of other researchers [23][24]. From table 1, it is easily observed that the conductivity of PPy/graphene and PPy/MnO 2 composites in PPy matrix can be rapidly increased compared with pure PPy with the introduction of graphene or MnO 2 component.…”