2021年1月1日 · The structures of different synthesized PPy samples using various dopants were characterized by Fourier transform infrared spectroscopy (FTIR), conductivity is measured by the Four-probe linear contact method and the surface morphologies are studied by scanning electron microscopy (SEM).

2015年10月1日 · However, the FTIR (Fig. 3) study revealed that these two samples (PPy-SO 4, PPy-S 2 O 8) have the highest number of carbonyl groups, mainly on the alpha position of the pyrrole unit (N–C O at ∼1700 cm −1 [27]).

ZnO/ppy nanocomposite has been synthesized by a simple in-situ chemical oxidative polymerization of pyrrole (Py) monomer using FeCl 3 as an oxidizing agent.

2024年5月22日 · Hybrid polypyrrole (PPy) nanoparticles were prepared using a low-temperature oxidative polymerization process in an acidic solution with polyethyleneimine (PEI) as a template and...

2022年7月5日 · Elemental analysis and FTIR spectroscopy studies show that dopants are effectively integrated into the PPy structure. FESEM and TEM studies affirm the significant effect of the dopants in modifying the morphology of PPy structure, and the XRD studies reveal the significant degree of crystallinity achieved through doping.

2024年1月16日 · Atomic force microscopy analysis revealed granular microstructure morphology in the thin films of PPy. Additionally, X-ray diffraction (XRD), ultraviolet–visible (UV-Vis) and Fourier transformed infrared (FTIR) spectra of PPy are analyzed to study its crystallinity, optical bandgap and bond dynamics to confirm the molecular composition of PPy.

Polypyrrole (ppy) has been synthesized by employing [Co (NH3)6]Cl3 as a new oxidizing agent under basic condition in aquous solution. The optimized ratio of monomer to oxidizing agent has been...

2013年4月15日 · Fourier Transform infrared (FTIR) spectra of pure BC, PPy and composites were obtained using a Bruker spectrometer (model Tensor 27) with an attenuated total reflectance accessory (ATR) in the range of 4000–700 cm −1 by accumulating 32 scans at …

Thin films of polypyrrole were characterized by X ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infra red spectroscopy (FTIR), UV visible spectroscopy and electrical resistivity by four probe method. The XRD spectra showed that the polypyrrole is amorphous in nature.

FTIR spectra of PPy, MoS2 and PPy/MoS2 nanocomposites are depicted in Figure 1. The typical peaks of PPy observed at 1546 and 1460 cm −1 are due to C=C stretching vibrations, as shown in...