Graphene aerogel electrodes: A review of synthesis methods for high-performance supercapacitors

In recent years, supercapacitors have emerged as one of the promising electrical energy storage alternatives to batteries. It is the capability of storing and releasing energy almost without any mechanical and chemical deterioration that promises a more sustainable future in the energy storage industries. Although their diverse advantages, supercapacitors were limited by the specific surface area of the electrodes themselves due to the nature of their generally small sizes and the materials they are made of. This review explores recent advancements in graphene aerogels as electrode materials for supercapacitors, with a particular focus on their synthesis methods. This study highlights the considerable technological promise of graphene aerogel, providing valuable perspectives on progress in its different synthesis methods. Additionally, it serves as a roadmap for future research in technological advancements.