ABSTRACT
Graphene refers to a two-dimensional material consisting of 1-10 layers of carbon atom in a honeycomb structure. This chapter briefly introduces graphene as a material and presents methods that have been developed for the preparation of 3D graphene embodiments that are foam-like in their structure. For the translation of the laboratory discovery of graphene to products, graphene needs to be cost-effectively manufactured on a larger scale, and 3D structures are no exception. There have been many methods for preparation of 3D graphene foams, including chemical vapor deposition (CVD), mechanical exfoliation from graphite, liquid phase exfoliation, wet-chemistry redox processes, and others, followed by 3D structuring. CVD is a method that is operated under high temperature and fine control of gas composition and pressure, through which carbon precursors decompose to form graphene on the surface of substrates. It has been extensively studied for the synthesis of 2D graphene with high crystallinity and fine control of layering.
