ABSTRACT
This chapter aimed to discuss the various microwave-assisted synthesis techniques, microwave generation, the interaction of microwaves with materials and a few recent types of synthesis of inorganic nanomaterials for supercapacitors. Functional electrode materials do a significant role in the development of energy conversion and storage technologies such as supercapacitors, batteries, fuel cells, and other electrochemical devices. To label the present troubles in relation to increasing the requirement, there is a solution called renewable abundant energy. The energy-storing field is looking for the greater concurrent improvements in the new generation of materials, eco-friendly environment, innovative approaches, and novel engineering techniques. Microwave-assisted synthesis processes are nowadays familiar due to its rapid, economical, energy-efficient and uniform heating behaviors. Among many synthetic methods, microwave-assisted synthesis becomes a very popular approach to efficiently control both the composition and morphology of solids. The relative merit of microwave heating over conventional is also discussed in this study; in particular, about the massive energy releasing and saving of reaction time. Synthesis of complicated inorganic materials can be achieved through microwave heating as the source of heat. In order to accomplish this, different methods and techniques are used in practice. Solid-state microwave, microwave-assisted hydrothermal synthesis, single-mode solid-state microwave synthesis, microwave synthesis combined with sol-gel or combustion are the different sub-types of microwave synthesis reported here along with their role in the preparation of inorganic materials for supercapacitors. Significant reduction in time is the major merit of this innovative technique. It resulted in energy saving. These set-ups must be simple and attainable with sophisticated arrangements. Metal oxides/hydroxides have the capability to introduce superior specific capacitances when concerned with carbonaceous materials and polymers. Great attention is received by the supercapacitors due to its applications in the energy-storing field. This chapter focuses on the novel advanced developed energy electrode materials. Furthermore, the results of the microwave-assisted synthesis of various nanostructured materials were discussed.
