Effect of Oxidizer on PANI for Producing BaTiO3@PANI Perovskite Composites and Their Electrical and Electrochemical Properties

Abstract

Polyaniline (PANI) has received significant attention in basic and applied studies because it has electrical and electrochemical properties comparable to conventional semiconductors and metals. PANI's electrical and electrochemical properties can be controlled through its preparation methods. Accordingly, in the present work, two different samples of PANI were prepared by the polymerization of aniline monomer via in situ polymerization method using two different oxidizers of dichromate (PANI (1)) and persulphate (PANI (2)). The products were blended with BaTiO3 (BTO) to form BTO@PANI composites. The composites were characterized by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). SEM illustrated the covering of PANI layers on the BTO nanoparticles. The electrical and electrochemical properties of the prepared composites were studied. The BTO@PANI(2) composite sample showed a conductivity of 1.2 × 10–3 S/cm higher than that found for each BTO@PANI(1) 9.1 × 10–4 S/cm and its constituents. The supercapacity showed higher capacity values of 70 F/g, and 76 F/g for BTO@PANI(1), and BTO@PANI(2), respectively, which are higher than its constituents.

Photocatalytic activity of polyaniline‐potassium doped nickel oxide nanocomposites: A comprehensive investigation on multifaceted properties

“…Complex impedance ( Z *) having frequency dependence properties of the real ( Z ′) and imaginary ( Z ″) parts of the impedance analysis for materials, 59,93,99 related as: where, is the angular frequency, and is the geometrical capacitance.…”

Synergistic enhancement in mechanical, thermal, and dielectric properties of PANI@BT/PVDF composites by adding 2D nanoplatelets

“…The onset decomposition temperature of PVDF is about 450°C, whereas the PVDF composites exhibit different thermal degradation behavior with two stages of weight loss. The initial weight loss around 300°C can be assigned to the removal of water and dopant, and the second stage of weight loss corresponds to the degradation of polymer chains 37 . It can be clearly identified from the DTG curves that compared with PANI@BT/PVDF composites, the decomposition of PANI@BT‐GO/PVDF composites move to higher temperature, accompanied with wider peaks, indicating the improved thermal stability of PVDF composites by introducing GO, which is mainly due to the restriction effect of GO on the polymer chains motion through the hydrogen bonding.…”

“…36 Moreover, the XRD pattern of PANI@BT-GO is analogous to that of PANI@BT, only with low density and an extremely slight shift to lower 2θ value by virtue of the chemical interaction between PANI and GO. 37 Besides peaks characterized for cubic BT, the XRD pattern of PANI@BT-BNNS also shows diffraction peaks at 26.9 , 41.8 , and 54.8 , referring to (002), (100), and (004) crystal faces of hBN (PDF No: 01-072-3608). 38 The morphologies of PANI@BT particles, PANI@BT-GO and PANI@BT-BNNS hybrid fillers are shown in Figure 3.…”

Preparation and Electrochemical Stabilities Study of Graphene/Polyaniline Composites with Polylactic Acid as Biodegradable Adhesive

“…As can be seen from the gure, the diffraction peaks at 2θ=14.8°, 20.2°, 25.3° belong to the amorphous structure of polyaniline. The diffraction peak of 2θ 20.2° is generated by the amorphous PANI, corresponding to the parallel (100) plane of the PANI backbone, and the diffraction peak of 2θ 25.3° corresponds to the orthogonal (110) plane of the backbone, indicating that PANI and P-50 has superior regularity [33,34]. The diffraction peak of P-50 at 2θ 26° comes from the typical graphite structure, which is the (002) plane of the hexagonal graphite carbon, illustrating the successful recombination of graphene [22].…”