Enhancement in the dielectrics of poly(o-toluidine)/single wall carbon nanotubes (POT/SWCNTS) polymer nanocomposites for electrical energy storage

• Published in: Journal of materials science. Materials in electronics Vol. 29; no. 15; pp. 13241 - 13253
• Main Authors: Islam, Shama, Ahmad, Shabir, Khan, Hana, Zulfequar, M.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.08.2018; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Charge transport; Chemical synthesis; Chemistry and Materials Science; Dielectric properties; Dopants; Electrical resistivity; Energy storage; Materials Science; Nanocomposites; Nanotubes; Optical and Electronic Materials; Performance enhancement; Polymers; Single wall carbon nanotubes; Toluidine; X-ray diffraction
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-018-9448-7

Present study focuses on influence of carbon nanotubes in POT polymer, in order to improve performance of energy storage devices. (POT/SWCNTS) nanocomposites are synthesized by situ polymerization with different concentrations of SWCNTS. POT had long chain of qunoid and benzoined rings provide together large transport of charge along with SWNTs resulting to store large amount of electric charge. Synthesized samples are characterized by dc conductivity; UV–Vis studies, FTIR, X-ray diffraction (XRD) and dielectric techniques. Electrical conductivity enhances up to four orders with dopant concentrations. Incorporation of dopant into polymer matrix is confirmed by FTIR studies. XRD analysis revealed crystallinity of nanocomposites. Present consequences of synthesized polymer nanocomposites shows meaningful impact with changes in dielectric properties due to better dispersion of SWCNTS in polymer matrix. As results enhancements in dielectric parameters values, highlights their great potential for supercapacitors. These nanocomposites do not need any binding substance that is an important practical advantage.