▎ 摘　　要

NOVELTY - Accordion-shaped cerium oxide/reduced graphene oxide composite material (I) is new. USE - (I) is useful as microwave absorbent (claimed). ADVANTAGE - (I): is high-performance absorbing material with strong absorption, wide frequency bandwidth, thin thickness, and low density property. DETAILED DESCRIPTION - Accordion-shaped cerium oxide/reduced graphene oxide composite material of formula (CeO2-x/RGO)(I) is new. x = 0-0.5; and RGO = reduced graphene oxide.