Review on the Mechanics of Lightweight 3-D Graphene Assembly

Abstract

The purpose of this paper is to improve the results of Recent advances in three-dimensional (3D) graphene assembly, it has shown how we can make solid porous materials which is lighter than air. In its two-dimensional form, graphene is thought to be the strongest of all known materials. But researchers until now have had a tough time decoding that two-dimensional strength into beneficial three-dimensional materials. It is possible that these solid materials can be mechanically strong enough for applications under many conditions, such as being a substitute for helium in filling up an unpowered flight balloon. However, knowledge of the elastic modulus and strength of the porous graphene assembly as functions of its structure has not been available, preventing evaluation of its feasibility. We add the bottom-up computational modeling with researches based on 3D-printed models to examine the mechanics of porous 3D graphene materials, resulting in modern designs of carbon materials. Our study reveals that, by designing the chemical synthesizing process, especially the reacting conditions, including pressure and temperature, we can fuse graphene flakes and produce stable 3D porous bulk materials with material architecture and density under control.