▎ 摘　　要

NOVELTY - Preparation of nitrogen-doped graphene-supported inverse spinel type magnetic aerogel material comprises mixing divalent metal salt, trivalent iron salt, water and ethanol at molar ratio of 1.8-2.2:1:80-120:20-50, adding graphene oxide powder, stirring at 20-40degrees Celsius for 0.5-4 hours to obtain a binary metal sol system; adding epoxide, stirring until gel temperature is 20-40degrees Celsius, standing for 12-30 hours, adding aging solution, adding to oven at 20-60degrees Celsius, supercritically drying to obtain precursor, and heating in tube furnace under nitrogen-containing gas atmosphere. The mass ratio of graphene oxide and trivalent iron salt is 0.002-0.030:1. The molar ratio of epoxide and trivalent iron salt is 5-20:1 USE - The method is for preparation of nitrogen-doped graphene-supported inverse spinel type magnetic aerogel material. ADVANTAGE - The method provides nitrogen-doped graphene-supported inverse spinel type magnetic aerogel material with high gas gel specific surface area, high porosity, high conductivity, excellent mechanical property, good thermal conductivity and low density, high specific surface, high magnetic and high electro-catalysis. The method has low material and convenient technique, at the same time, low energy consumption, simple technique, easy to realize scale production, and controllable structure.