▎ 摘　　要

NOVELTY - Preparing iron-metal organic framework (Fe-MOF)-derived graphene-based magnetic composite aerogel wave absorbing material involves dispersing graphene oxide and the reducing agent in water to obtain a dispersion, obtaining reduced graphene oxide hydrogel by hydrothermal reduction method, and then obtaining the reduced graphene oxide hydrogel by dialysis, then freeze-drying to obtain reduced graphene oxide aerogel, denoted as reduced graphene oxides (rGO) aerogels. The iron salt solution is added, continue to reacted in an ice-water bath for a period of time, and reacted at room temperature for period of time until the color of mixture completely turns golden yellow, and then undergo hydroalcoholic dialysis, and freeze-dried. The reduced graphene oxide-based Fe-MOF cluster composite aerogel is obtained, and obtained the graphene-based iron oxide (Fe2O3) cluster magnetic composite aerogel by carbonization at a high temperature of 600℃ for 6 hours under the protection of inert gas. USE - Method for preparing Fe-MOF-derived graphene-based magnetic composite aerogel wave absorbing material in the field of magnetic protection (claimed). ADVANTAGE - The method exhibits excellent wave absorption strength and wide-screen absorption characteristics, the preparation process is simple and easy to operate, and is expected to be applied to fields that require electromagnetic wave absorption, such as aerospace, military equipment, and civil electrical appliances. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an electronic instrument comprising the microwave absorbing material of the graphene-based iron oxide (Fe2O3) cluster magnetic composite aerogel.