Revolutionizing Supercapacitors with Next-Level Performance: Developing an Innovative MXene-Based Cobalt Oxide Composite Electrode for Enhanced Supercapacitive Energy Storage Applications

Abstract

A novel Co3O4/MXene composite electrode has been synthesized through an innovative co-precipitation method. The composite has a structure similar to a layered framework, with the cobalt-cobalt (Co3O4) nanosheets exhibiting dangling lattice fringes-spacings of 0.31 and 0.25 nm indexed to the (100) plane of the nanosheet. The composite's morphology has been characterized using transmission electron microscopy, electrochemical impedance spectroscopy (EIS), and X-ray diffraction. The electrostatic of the Co3O4 nanosheet onto MXene surfaces has been demonstrated by EIS. The results of the EIS show that the covalent nanosheet is rearranged in a layer-like manner, resulting in the formation of a nanocomposite with a surface charge-discharge ratio of 0.1M H2SO4 and 1M KOH electrolytes. Furthermore, the electrochemical characteristics of the modified electrode have been investigated by spectrophotometric analysis and cyclic voltammogram. The study's findings contribute to the global pursuit of sustainability by enabling higher energy densities and faster charge-displacements, facilitating the transition to cleaner and more efficient energy solutions. This research not only advances electrode engineering but also empowers various energy storage applications, from portable electronics to renewable energy systems.

Advanced composite material for high-performance supercapacitors: integrating graphene oxide and barium chromate

“…A robust and effective method for analyzing honeycomb-structured GO materials is Raman spectroscopy. Layer arrangement, doping density, mobility, and layer defects are some of the many graphene material-related features that have been the subject of a great deal of research [22]. Figures 2(c) and (d) show the Raman results of the composites made of GO and BaCr 2 O 4 @GO.…”