▎ 摘　　要

NOVELTY - Preparing ceramic nanofiber/graphene alcohol hybrid gas gel comprises (i) electrospinning precursor and polyethylene pyrrolidone powder into a mixed solution of tetrahydrofuran and absolute ethanol to obtain a precursor, (ii) adding ceramic nano fiber to the mixed solution obtained in step (i), and stirring to obtain uniform solution, (iii) placing the uniform solution into a 500 W microwave oven for irradiation for 1 g, taking out and directionally freezing, dry finishing, placing in a 700 W argon atmosphere for microwave irradiation again for 30 seconds to obtain graphene/ceramic nano fiber/polyvinyl alcohol hybrid gel. USE - Preparation method of graphene/ceramic nano- fiber/polyvinyl alcohol hybrid gas gel used in super capacitor, lithium ion battery, sensor, electromagnetic wave absorbing/shielding and environment repairing field. ADVANTAGE - The method enables to prepare graphene/ceramic nano-fiber/polyvinyl alcohol hybrid gas gel, which has a three-dimensional porous structure, capable of providing more multiple reflection and scattering effect, dissipating the electromagnetic wave in the material, at the same time, enhancing the conductivity of the graphene, and further enhancing conductivity loss of gas gel improving the absorption performance of electromagnetic wave. The aerogel prepared by the method has a typical low density, super elasticity, good heat insulation performance and excellent minimum reflection loss, the wave absorbing performance is more than -60dB, the absorption bandwidth is greater than -7 GHz, and the aerogels have a typical high density, high elasticity and good heat insulating performance.