| Autor: |
Atta A; Physics Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia., Alotiby MF; Nuclear Technologies Institute (NTI), King Abdulaziz City for Science & Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia., Al-Harbi N; Department of Physics, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia., El-Aassar MR; Chemistry Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia., Uosif MAM; Physics Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia., Rabia M; Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.; Nanophotonics and Applications Laboratory, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt. |
| Abstrakt: |
This research paper aims to fabricate flexible PVA/Cs/TiO 2 nanocomposite films consisting of polyvinyl alcohol (PVA), chitosan (Cs), and titanium oxide (TiO 2 ) for application in energy storage devices. The samples were analyzed using X-ray diffraction (XRD), atomic force microscope (AFM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and energy dispersive X-ray (EDX) techniques. The impact of TiO 2 on the electrical impedance, conductivity, permittivity, and energy efficiency of the PVA/Cs was determined in a frequency range of 100 Hz to 5 GHz. The XRD, FTIR, and EDX results showed the successful fabrications of the PVA/Cs/TiO 2 . The SEM and AFM images illustrated that the TiO 2 was loaded and distributed homogenously in PVA/Cs chains. In addition, the electrical conductivity was enhanced from 0.04 × 10 -7 S.cm -1 of PVA/Cs to 0.25 × 10 -7 S.cm -1 and 5.75 × 10 -7 S.cm -1 , respectively, for the composite PVA/Cs/0.01TiO 2 and PVA/Cs/0.1TiO 2 , and the dielectric constant grew from 2.46 for PVA/Cs to 7.38 and 11.93, respectively. These results revealed that modifications were made to the produced films, paving the way for using the composite PVA/Cs/TiO 2 films in different energy applications, such as electronic circuits and supercapacitors. |
