Organic acid doped polythiophene nanoparticles as electrode material for redox supercapacitors

Abstract

An organic acid doped electronically conducting polymer nanomaterial, polythiophene‐tartaric acid (PTh‐TA) nanoparticles, was prepared by cationic surfactant‐assisted dilute polymerization method. The physical properties of the synthesized polymer were characterized by FT‐IR, UV‐visible spectroscopy, X‐ray diffraction, SEM, and electrical conductivity studies. The symmetric type redox supercapacitor performances were studied in PVdF‐HFP in 1 M LiPF6 containing EC&PC (1:1 v/v) based microporous polymer electrolyte. The specific capacitance of the capacitor was found to be 156 F g−1. The energy and power densities were calculated as 14 Wh kg−1 and 522 W kg−1, respectively. The value of capacitance was found to be almost stable up to 1000 cycles and even more. Copyright © 2009 John Wiley & Sons, Ltd.

Embedded capacitor applications of graphene oxide reinforced poly(3,4-ethylenedioxythiophene)-tetramethacrylate (PEDOT-TMA) composites

“…Several characteristic peaks of PEDOT-TMA were found in the spectrum. The peak at 983, 858, 781 and 621 cm -1 can be assigned to C-S bonds in PEDOT-TMA polymer chains [26][27][28]. The peaks at 1546 and 1402 cm -1 can be due to C=C stretching vibrations whereas the peak at 1647 cm -1 can be attributed to C-C stretching vibrations respectively [26,29].…”

Galvanostatic deposition of polypyrrole in the presence of tartaric acid for electrochemical supercapacitor

“…al., was prepared by pulse galvanostatic method in aqueous solution containing p-toluene sulphonic acid and determined as 403 F g -1 at 0.5 mA cm -2 of the specific capacitance [13]. Generally, organic acids improve the properties of conducting polymers as not only capacitance but also stability [14]. Also, surfactants provide enhancement in the specific area of coating.…”

Metal–polymer nanocomposites based on Ni nanoparticles and polythiophene obtained by electrochemical method

“…The absorption bands observed at 1602 and 1419 cm −1 belong to C C symmetric and asymmetric stretching vibrations of the thiophene ring [24,25]. The absorption bands at 1259, 1112, 1034 and 790, 690 cm −1 can be attributed to ring breathing, C H in-plane bending vibration, C H out-of-plane deformation and C S stretching vibration, respectively, in polythiophene [26,27]. The synthesized PT/Ni nanocomposites exhibit absorption bands corresponding to C C stretching, C H stretching and bending, and C S stretching vibrations.…”