Capacitance properties of poly(3,4-ethylenedioxythiophene)/carbon nanotubes composites

Performance of Manganese Oxide/CNTs Composites as Electrode Materials for Electrochemical Capacitors

“…CNTs have been already used in supercapacitors as electrode materials, 8,29 as additives for improving the performance of conducting polymers, 30,31 or for supporting small metal oxide particles in order to increase the capacitance of the carbon nanotubes. 32,33 The values of specific capacitance reported for manganese oxide in the literature range between 150 and 250 F/g.…”

An Investigation of LiFePO4/Poly(3,4-ethylenedioxythiophene) Composite Cathode Materials for Lithium-Ion Batteries

“…16 The polymerization was performed in aprotic solvent, acetonitrile (AN), because EDOT has a limited solubility in an aqueous medium. [23][24] FeCl3·6H2O plays a role as an oxidizing agent. The mole ratio of EDOT : FeCl3·6H2O was set to 1 : 17.…”

Influence of the polymeric coating thickness on the electrochemical performance of Carbon Fiber/PAni composites

“…However, there are distinctions between them with respect to charge storage mechanisms. In the case of supercapacitors there are two possible mechanisms for energy storage: (1) firstly, by the accumulation of charge on the surfaces of the active material, where this process occurs by the electrostatic charge accommodation at the electrical double-layer, through the adsorption of the electrolyte ions on the surfaces of electrically stimulated carbon-based materials; (2) secondly, by the fast and reversible redox or Faradaic reactions during the oxidation/reduction process, where the devices are called as pseudocapacitors, whose electrodes are made up by transition metal-oxides, hydroxides, and/or conducting polymers oxides or conducting polymers, [2][3][4][5][6] . Recently, supercapacitors have played an increasingly important role in applications such as the auxiliary power source in combination with battery electric and hybrid vehicles [6] , because they exhibit power densities which are about ten times higher than those of batteries, showing excellent cycling stability even after hundreds of thousands of charge/discharge cycles.…”

“…Various materials have been studied for applications in supercapacitor such as: (i) carbon; (ii) transition metal oxides, ruthenium and iridium; and (iii) conducting polymers. Among them, conducting polymers are one of the most studied due to their characteristics, such as high electrical conductivity, electrochemical reversibility, low weight, and stability in the air [2][3][4][5][6][7] . Particularly, cconducting polymers such as polyaniline (PAni) [9,10] , polypyrrole [11,12] , poly(ethylenedioxythiophene) polythiophene [4] have appeared as the most cited in literature.…”