Synthesis and electrochemical performance of polyaniline @MnO2/graphene ternary composites for electrochemical supercapacitors

Graphene-based ternary composites for supercapacitors

“…21 Poly(3,4-ethylenedioxythiophene) can undergo both pdoping and n-doping, while PANI and PPy only undergo p-doping as their n-doping potential is much lower than the common electrolyte reduction potential. 31 Thus, the high mechanical strength of carbon-based materials such as graphene is always used to overcome the mechanical degradation of CPs and lead to long cycling stability, which is important for supercapacitors. 6 Attributable to these remarkable properties, CPs are widely used in the fabrication of electrode materials for supercapacitor.…”

“…Poly(3,4ethylenedioxythiophene), [35][36][37]31,[38][39][40][41][42][43] and PPy 19,44-48 are commonly CPs used as electrode materials for supercapacitor due to the remarkable electrical conductivity, low cost, flexibility, and ease of preparation. In addition, the combination of these 3 materials can enhance the supercapacitive performance due to the synergistic effect provided by graphene, CP, and metal oxide.…”

MnO2/mont K10 composite for high electrochemical capacitive energy storage

“…Mesoporous MnO 2 with uniform nanorod morphology and mesoporous b-MnO 2 using SBA-15 and KIT-6 as templates [35], graphene [36], graphene/polyaniline composite [37,38], graphene oxide-MnO 2 [39], and MnO 2 -coated carbon nanotubes between graphene sheets [40] have been reported as electrochemical capacitor electrodes. Recently, graphene/MnO 2 [41], MnO 2 /rGO/Ni composite [42], graphene-polyaniline-MnO 2 hybrids [43], honeycomb MnO 2 nanospheres/carbon nanoparticles/graphene composites [44], hierarchical porous activated carbon @MnO 2 core/shell nanocomposite [45], polyaniline@MnO 2 /graphene ternary composites [46], MnO 2 -deposited TiO 2 nanotube arrays [47], molybdenum disulfide/carbon composite [48], cobalt nickel sulphide dendrite/quasispherical nanocomposite [49], graphdiyne nanostructures [50] and nanoarchitectured MoS 2 [51] have also been employed as electrochemical capacitor electrode materials. The excellent electronic conductivity, high stability, and mechanical flexibility of additive materials enable the improved electrochemical and mechanical properties of MnO 2 composite electrodes for electrochemical capacitor.…”

Electrochemical Pseudocapacitors Based on Ternary Nanocomposite of Conductive Polymer/Graphene/Metal Oxide: An Introduction and Review to it in Recent Studies

“…It was concluded from the Nyquist plots that the internal resistance of the ternary nanocomposite was lower than that of the other above‐mentioned materials, indicating that the ternary nanocomposites improved the ion transfer taking place between the solution and the electrode active center. Moreover, the semicircle radius of the ternary MnO 2 /PANI/graphene nanocomposite in the high frequency ranges was smaller than that of PANI and graphene, demonstrating the smallest charge transfer resistance (Rct) and superior electrochemical behavior presented by the prepared ternary nanocomposite …”

“…Moreover, the semicircle radius of the ternary MnO 2 /PANI/ graphene nanocomposite in the high frequency ranges was smaller than that of PANI and graphene, demonstrating the smallest charge transfer resistance (Rct) and superior electrochemical behavior presented by the prepared ternary nanocomposite. [63] In another work, Mondal et al made use of a scalable soft-template method to synthesize a ternary rGO/PANI/ Fe 3 O 4 composite (Figure 31), exhibiting not only the specific capacitance as high as 283.4 F g À1 at current density of 1.0 A g À1 but also the high energy density of 47.7 W h kg À1 at the power density of 550 W kg À1 . The prepared ternary composite displayed 78 % retention of the electrochemical performance after 5000 cycles, indicating extraordinary life stability.…”