▎ 摘　　要

NOVELTY - Preparing shell structured elastic graphene foam comprises (i) adding graphite oxide in de-ionized water at room temperature to obtain graphite oxide solution, dispersing, ultrasonic stirring, vacuum freezing and drying the solution, obtaining oxidized graphite foam, (ii) adding the graphite oxide foam into hydroiodic acid reduction container, cleaning and freezing, vacuum freezing and drying to obtain the product. USE - The method is useful for preparing shell structured elastic graphene foam at low temperature (claimed).