▎ 摘　　要

NOVELTY - Preparing composite porous aerogel, comprises obtaining cellulose nanofibers, ZIF-8 metal-organic frameworks and graphene oxide-grafted polyaniline, dispersing cellulose nanofibers and graphene oxide grafted polyaniline in deionized water, adding ZIF8 metal organic framework, performing ultrasonic dispersion and stirring to obtain cellulose nanofibers/graphene oxide grafted polyaniline/ZIF-8 Dispersions, pouring the cellulose nanofiber/graphene oxide grafted polyaniline/ZIF-8 dispersion into a mold, liquid nitrogen freezing treatment and freeze drying to obtain cellulose nanofiber/graphene oxide grafted polyaniline/ZIF-8. 8 Aerogel, heating cellulose nanofiber/graphene oxide grafted polyaniline/ZIF-8 aerogel under nitrogen protection, heating under nitrogen protection to obtain a carbon fiber/nitrogen-doped graphene/porous carbon composite porous aerogel. USE - The method is useful for preparing composite porous aerogel. ADVANTAGE - The method enables to prepare composite porous gas material gel, which has high porosity, and has excellent thermal stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the composite porous gas gel material.