Journal: Current Nanoscience
Guest editor(s):Dr. Gomaa A.M. Ali
Co-Guest Editor(s):

Introduction

This thematic issue will discuss the recent advances in graphene-based nanomaterials for different energy technologies. Graphene possesses a high surface area, and stable structure and exhibits many interesting electronic, optical, and mechanical properties due to its 2D crystal structure. Graphene is of both fundamental interest and suitable for a wide range of potential applications. Graphene is an atomically thin two-dimensional (2D) system of sp2 carbon atoms organized in a hexagonal lattice structure. Graphene has been applied for many energy applications such as supercapacitors, LiB, fuel cells, and solar cells. Supercapacitors can be classified into two main categories based on the energy storage mechanism, pseudocapacitors (PCs) and electrochemical double-layer capacitors (EDLCs). PCs store electrical energy Faradically by electron charge transfer between electrode and electrolyte. Metal oxides and conducting polymers are used as electrode materials for PCs. In EDLCs, a double layer of electrolyte ions is formed on the surface of an electrode material, which arises from the potential dependence of the surface density of charges stored electrostatically. Graphene-based materials possess high surface areas as the electrode materials, and the capacitive originates from the charge accumulation at the interface between the electrode and electrolyte.

Keywords

2D Nanomaterials, Graphene, Energy, Supercapacitors, LiB, Fuel cells, Solar cells

Sub-topics