The Synthesis of 2,6-Pyridinedicarboxylic Acid Modified Porous Polypyrrole Electrodes and Its Energy Storage Application

Abstract

The well-designed porous polypyrrole/dicarboxylic acid (PPy/DCA) (0.02) electrodes were successfully synthesized by hydrothermal method. In this study, the interesting structural properties of the synthesized electrodes were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TG-DTA), Brunauer–Emmett–Teller (BET) and scanning electron microscopy (SEM). The scanning electron microscopy results showed that a large number of random pores were formed on the electrode surface during the polymerization of pyrrole. The galvanostatic charge-discharge measurements exhibited a specific capacity of 854.2 F.g−1 at 2.7 A.g−1 with an energy density of 884.4 Wh.kg−1. Further, the supercapacitor electrode showed a good cycling test (87.3%) after 4000 cycles at a current density of 10.0 A.g−1 and wide operating voltage (3.0 V). Our studies suggest that 2,6-pyridinedicarboxylic acid doped-polypyrrole electrodes with interesting structure and easy synthesized method are promising candidates for high-performance supercapacitor devices.

Electrochemical Supercapacitor Application of Electrochemically Produced Chlorine-Doped Graphene Oxide with Cobalt Sulfide-Based Compounds Produced from Recycling of Spent Li-Ion Batteries

“…[81][82][83] Within this framework, cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge- discharge techniques were employed to explore the fundamental capacitive properties of the coin cell type asymmetric supercapacitors. [84][85][86] The observed rectangular shapes and currents in the cyclic voltammograms were found to be directly correlated with the capacitive behaviors of the materials. 82 Cyclic voltammetric analyses were performed to examine the electrochemical behavior of asymmetric supercapacitors prepared using Cl-GO, CS, and graphite.…”

S-Doped Graphene Oxide/N-Doped Graphene Oxide/PANI: A Triple Composite for High-Performance Supercapacitor Applications

“…16,43,74,[78][79][80] The Cdl value, on the other hand, was at the highest level after 1000 cycles, in this case, it showed that the interaction at the electrode/electrolyte interface was the highest and the double layer capacitance is the highest in these cycles. 16,43,74,[81][82][83][84] To determine the charge-discharge behavior of the supercapacitor, galvanostatic charge-discharge tests were performed to PANI/SGO/NGO-3 including supercapacitor at a current density of 0.1 A g −1 between 0 and 1.5 V (Fig. 10d).…”

The effect of zinc and sodium borate doping on the structural, morphological, optical, electrical and electrochemical properties of PEDOT:PSS thin film electrodes for flexible and transparent supercapacitor applications

“…Voltammograms were acquired over a potential range of À0.5 V to +0.5 V utilizing a reference electrode composed of Ag/AgCl and a counter electrode composed of Pt wire (99.99%). 51 An increase in the concentration of NaB in doped PEDOT:PSS/GCE electrodes from 0.3 mg ml À1 to 2.5 mg ml À1 was accompanied by a corresponding increase in areas of the voltammograms. While the increase in ZnB doping did not result in a corresponding increase in the CV areas compared to the difference in concentrations, the area values were significantly greater than those of the PEDOT:PSS electrode by itself.…”