▎ 摘　　要

NOVELTY - Preparing scalable MXene/graphene composite aerogel with high-electromagnetic shielding effect comprises (i) dispersing reduced graphene oxide in deionized water to obtain solution A of 4-10 mg ml-1 reduced graphene oxide solution, (ii) mixing 1-3 mg ml-1 MXene dispersion with the solution A at a mass ratio of 1-10:1 to obtain mixed solution B, (iii) magnetically stirring the mixed solution B and performing ultrasonic treatment, and uniformly mixing to obtain solution C, (iv) adding the modifying agent to the solution C, and magnetically stirring and ultrasonically treating to obtain solution D, and (v) freezing and drying. USE - The aerogel is useful in the field of electromagnetic shielding in aerospace (claimed). ADVANTAGE - The method reduces bulk density of MXene; ensures good mechanical performance and scalability; and promotes feasibility of MXene in the aerospace field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for scalable MXene/graphene composite aerogel with high-electromagnetic shielding effect prepared by the above method.