Graphyne-Based Carbon Nanomaterials for Green Energy Applications

Abstract

Graphynes (GYs) and their family are new allotropes of carbon in a two-dimensional form with sp and sp 2 hybridization. Graphdiyne (GDY) was one of the foremost among this group of carbon allotropes to be formulated efficaciously and different forms of GY have found numerous applications. GYs have several unique characteristics that make them highly useful materials in a variety of fields. The results of different studies have shown that graphyne-based materials with different 2D and 3D frameworks can be used to prepare better energy storage and conversion devices than conventional materials such as metal oxides. This chapter elaborates on the development of GYs, their properties, and recent research on GY-based green energy applications in devices like fuel and solar cells, lithium-ion batteries (LIBs), supercapacitors (SCs), and dye-sensitization solar cells. Furthermore, the use of 3D printing technologies for the development of GY-based materials and their application in green energy devices has been highlighted with an emphasis on their potential for sustainable development.