ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Synthesis and supercapacitor performance of polyaniline-titanium dioxide-samarium oxide (PANI/TiO2-Sm2O3) nanocomposite

Zaid H. Mahmoud, Reem Adham AL-Bayati, and Anees A. Khadom

Department of Chemistry, College of Science, Al-Mustansiriyah University, Baghdad, Iraq

 

E-mail: zaidhameed_91@yahoo.com

Received: 22 August 2021  Accepted: 22 October 2021

Abstract:

TiO2-Sm2O3 binary oxide has been successfully synthesized using a two steps photolysis method with UV-irradiation (15 W and 256 nm) as a power source of irradiation system, and it modified PANI during simple oxidative polymerization route to get polyaniline/Sm2O3-TiO2 nanocomposite. The structural, morphology and electrochemical properties of as-synthesized polyaniline /Sm2O3-TiO2 nanocomposite have been estimated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Field Emission scanning electron microscope (FE-SEM), Chronopotentiometry (CP), Cyclic voltammetry (CV) and Electrochemical Impedance spectroscopy (EIS). The measurements from XRD exhibit synthesis anatase TiO2 phase with tetragonal structure and (monoclinic and cubic) mixture structure of Sm2O3. The FE-SEM images display prepare spherical nanoparticles that covered fiber morphology of polyaniline. Interestingly the synthesized polyaniline/Sm2O3-TiO2 nanocomposite demonstrates supercapacitance properties with value 881F/g and 141wh/kg, which observed to be larger than pure polyaniline and polyaniline/Sm2O3. In addition to, the galvanostatic charge–discharge (GCD) properties obtained the nature of pseudocapacitive for PANI/Sm2O3-TiO2 nanocomposite. The EIS results exhibit the superior electrochemical behavior for PANI/TiO2-Sm2O3 compared with PANI and TiO2-Sm2O3.

Keywords: Pseudocapacitive; Galvanostatic charge–discharge; Electrochemical impedance spectroscopy; Polyaniline; Nanofibers

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-021-01948-6

 

Chemical Papers 76 (3) 1401–1412 (2022)

Friday, March 29, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers