The solar reduction of graphene oxide on a large scale for high density electrochemical energy storage

Abstract

A green, clean, and rapid process of converting large quantity of graphene oxide (GO) into reduced graphene oxide (rGO) employing sunlight is presented herewith. In this protocol, the sunlight is...

The application of plasma technology for the preparation of supercapacitor electrode materials

“…These preparation methods have complex processes, take a long time, have high costs, and are prone to secondary contamination, causing environmental pollution and other problems. 111 Laser treatment 112,113 and sunlight 114 are the most commonly used green methods for reducing graphene oxide, but they have not been widely used in industry because their technology is still immature and in the laboratory stage. Plasma technology has attracted research interest from scholars because of its high efficiency and pollution-free characteristics and because it can be used in combination with traditional methods.…”

Synthesis and Electrochemical Studies of 3D Reduced Graphene Oxide for Efficient Energy Storage

“…rGO can be prepared through the modification of graphene oxide. Typically, there are a number of techniques for the preparation of rGO from graphene oxide such as chemical, electrochemical, photonic, microwave, hydrothermal, solvothermal, etc. − In particular, chemical strategies are promising for the synthesis of tunable, scalable, and high-quality graphene-based nanomaterials . Depending on the reduction method and synthesis conditions, various rGO morphologies may be attained (e.g., foams, sponges, hydrogels/aerogels, sheets, interconnected, fibers etc.…”

A study of the synergetic effect between graphene oxide and transition metal oxides for energy storage

“…Although the electrochemical properties of GO could be enhanced by modication and functionalization, as an electrode material, the performance of GO lms was still worse than that of rGO. [16][17][18][19]35 In order to effectively improve the energy storage capacity of GO lms, transition metal oxides (TMOs) have been introduced into GO sheets. 36,37 The inuence of TMOs on GO performance can be summarized into two aspects.…”

“…Although the electrochemical properties of GO could be enhanced by modification and functionalization, as an electrode material, the performance of GO films was still worse than that of rGO. 16–19,35…”