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

Abstract

This review gives an overview of the synthesis, surface and electrochemical investigations over ternary nanocomposite of conductive polymers in the development of new supercapacitors. They utilize both Faradaic and non‐Faradaic procedures to store charge, leading to higher specific capacitance and energy density, higher cell voltage, longer life cycle and moderated power density. Owing to a unique combination of features such as superb electrical conductivity, corrosion resistance in aqueous electrolytes, highly modifiable nanostructures, long cycle life and the large theoretical specific‐surface area, the use of ternary nanocomposites as a supercapacitor electrode material has become the focus of a significant amount of current scientific researches in the field of energy storage devices. In these nanocomposites, graphene not only can be utilized to provide a substrate for growing nanostructured polymers in a polymer‐carbon nanocomposite structure in order to overcome the insulating nature of conductive polymers at dedoped states, but also is capable of providing a platform for the decoration of metal oxide nanoparticles to avoid their agglomeration. In this regard, synthesis, characterization and performance of different ternary nanocomposites of conductive polymer/graphene/metal oxide are discussed in detail. These remarkable results demonstrate the exciting commercial potential for high performance, environmentally friendly and low‐cost electrical energy storage devices based on ternary nanocomposite of conductive polymer/graphene/metal oxide.

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

“…15 Internal structure and working principle of supercapacitors [142] et al [154] examined graphene super-capacitors, capacitance characteristics with the same ionic liquid. In addition, pseudo-capacitors with metal oxide and polymer graphene composites have been observed by many study organizations with enhanced efficiency involving faradic reactions [155]. But the strength and mechanical stability of the electrode during electrochemical responses in such pseudo-capacitors is low, resulting development in the polymer-based electrode area that needs to be resolved before real-time operations occur.…”

Controllable Carbonization of Plastic Waste into Three-Dimensional Porous Carbon Nanosheets by Combined Catalyst for High Performance Capacitor

“…As the most essential component of the supercapacitor, the electrode material mainly determines the electrochemical performance, the exploitation of new advanced electrode materials has become the research hotspot in recent years. In general, electrode materials can be divided into three categories: carbon materials, metal oxides, and polymers [ 21 ]. Because of the excellent thermal/chemical stability, excellent conductivity, and tunable surface area, carbon materials are the most extensively studied electrode materials so far [ 22 , 23 , 24 , 25 ].…”

Bullet-like microstructured nickel ammonium phosphate/graphene foam composite as positive electrode for asymmetric supercapacitors

“…Fuel cells, batteries and electrochemical capacitors are considered to be crucial topics for researchers in the eld of energy storage devices. [1][2][3] Based on these features, supercapacitors can be used in an assortment of applications such as in portable electronics, backup energy systems and hybrid vehicles. 2,4,5 Referring to their energy storage mechanism, supercapacitors can be divided into two major categories namely: electric doublelayer capacitors (EDLCs), and faradaic.…”