Green-Synthesized Graphene for Supercapacitors-Modern Perspectives

Graphene is a unique nanocarbon nanostructure, which has been frequently used to form nanocomposites. Green-synthesized graphene has been focused due to environmentally friendly requirements in recent technological sectors. A very important application of green-synthesized graphene-based nanocomposite has been observed in energy storage devices. This state-of-the-art review highlights design, features, and advanced functions of polymer/green-synthesized graphene nanocomposites and their utility in supercapacitor components. Green graphene-derived nanocomposites brought about numerous revolutions in high-performance supercapacitors. The structural diversity of conjugated polymer and green graphene-based nanocomposites has facilitated the charge transportation/storage capacity, specific capacitance, capacitance retention, cyclability, and durability of supercapacitor electrodes. Moreover, the green method, graphene functionality, dispersion, and matrix-nanofiller interactions have affected supercapacitance properties and performance. Future research on innovative polymer and green graphene-derived nanocomposites may overcome design/performance-related challenging factors for technical usages.

Automated summary

Graphene, a unique nanocarbon nanostructure, is widely used in the formation of nanocomposites. Recently, there has been a focus on green-synthesized graphene due to environmental concerns. This review highlights the application of green-synthesized graphene-based nanocomposites in energy storage devices, specifically in supercapacitor components. The structural diversity of polymer/green-synthesized graphene nanocomposites has improved the performance of supercapacitor electrodes by enhancing charge transportation/storage capacity, specific capacitance, capacitance retention, cyclability, and durability. Factors such as green synthesis methods, graphene functionality, dispersion, and interactions with the matrix-nanofiller also influence the supercapacitance properties and performance. Further research on innovative polymer and green graphene-derived nanocomposites may address the challenges in design and performance for technical applications.