▎ 摘 要
NOVELTY - A porous graphene foam is fabricated by (a) forming a printed structure from a ceramic slurry using an additive manufacturing technique; (b) partially debinding the printed structure to form a calcined structure; (c) partially sintering the calcined structure to form a porous ceramic scaffold; (d) depositing graphene on porous ceramic scaffold using chemical vapor deposition; and (e) partially etching the porous ceramic scaffold to form the graphene foam; where the ceramic slurry comprises a ceramic with a ceramic loading of 60-75 wt.%. USE - Fabrication of porous graphene foam used for electrode, actuator or heat absorbing material (all claimed). ADVANTAGE - The ceramic loading of the ceramic slurry allows for inter-particulate interactions such that during the steps of debinding and sintering, the pore size distribution of the ceramic composite can be controlled, and allows for the properties of graphene composite and graphene foam to be fine tuned. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for porous graphene foam comprising an interconnected bicontinuous network of graphene and air pockets, having a ceramic content of less than or equal to 5 at.%.