Enhanced Electrochemical Performance of a Hybrid Supercapacitive Material Based on Ternary Doped Polyaniline/Activated Carbon Composite

Abstract

A facile strategy for synthesizing a highly performing hybrid supercapacitor electrode material by combining ternary doped (binary transition metals in combination with an inorganic acid) polyaniline (PANI) with cetyl trimethyl ammonium bromide (CTAB) surfactant-wrapped environment-friendly activated carbon (AC) is reported. The composites were fully characterized and exhibited an excellent specific capacitance of 1250 F/g with a significantly beneficial cyclic stability (87% capability following 1000 cycles). This robustly architectured hybrid composite material further exhibited 85.069 Wh/kg energy density and 1049.991 W/kg output power. Furthermore, the material displayed superior dielectric properties with good crystallinity. The enhanced electrochemical performance achieved for the above hybrid composite is attributed to the structural advantage of its flaky morphology and the effective utilization of good surface span, conductivity, and stability of carbonaceous material in favor of the strong pseudocapacitance of ternary doped polyaniline. All of these results demonstrate that the hybrid composite can be ideal for supercapacitor applications.

Biogenic MnO2nanoparticles derived from aCedrus deodarapine needle extract and their composites with polyaniline/activated charcoal as an electrode material for supercapacitor applications

“…33 In the case of binary and ternary composites, the two characteristic bands of PA are not separately detectable, but appear as a single broad band. The peak in the range of 300 nm to 550 nm for the PA/AC composite may be associated with the interaction of a quinonoid entity with activated charcoal 34 and the absorption band in the range 300–620 nm might be associated with the interaction of MnO 2 nanoparticles with the polymer chain.…”

“…This broadening may be ascribed to the overlap of the diffraction peaks corresponding to PA and AC. 34 This is because the activated charcoal shows broad asymmetric peaks at 2 θ diffraction angles of approximately 25° and 50°. This indicates that the peak at 50° is contributed by AC.…”

Controllable Preparation of Cu NPs/CNTs@PANI Composites as Electrode Materials for Electrochemical Double-Layer Capacitors

“…Conductive polyaniline has high theoretical pseudocapacitance, simple synthesis, low cost, and excellent electrical conductivity and is often used as an electrode material. 7 In addition, introducing transition metals improves the material's electrochemical activity and conductivity, accelerates the electron transport ability, and reduces the internal resistance, which is beneficial to obtain good electrochemical performance. Copper metal possesses excellent electrical and thermal conductivity and is often used as a structural and thermal material and an electrical conductor.…”

“…Introducing N atoms increases the electrical conductivity and improves the energy density of pseudocapacitive materials. Conductive polyaniline has high theoretical pseudocapacitance, simple synthesis, low cost, and excellent electrical conductivity and is often used as an electrode material . In addition, introducing transition metals improves the material’s electrochemical activity and conductivity, accelerates the electron transport ability, and reduces the internal resistance, which is beneficial to obtain good electrochemical performance.…”

Recent Advancements in Energy Storage Based on Sodium Ion and Zinc Ion Hybrid Supercapacitors

“…Due to the high cost of lithium, researchers are looking for decent alternatives such as monovalent cations (Na + , K + ) and multivalent cations (Mg 2+ , Ni 2+ , Zn 2+ ,Ca 2+ , and Al 3+ ). The hybrid supercapacitors come forward as a promising energy storage technology. ,,− The possible implementation of hybrid supercapacitors is restricted due to liquid electrolytes which adversely affect the performance and stability. An organic electrolyte cannot be used in modern electric and electronic devices due to its high flammability and volatility, making it an unsuitable candidate.…”