▎ 摘　　要

NOVELTY - Preparation of acetone-sensitive polyhedron-three-dimensional porous graphite hydrogel composite membrane involves adding graphene oxide to deionized water, ultrasonic treating, adding hydroquinone, and magnetically stirring; adding to PTFE liner of high pressure reactor, sealing, placing in blast oven, reacting, and naturally cooling to room temperature; and centrifuging, washing with deionized water and absolute ethanol, respectively, and freeze-drying. USE - Method for preparing acetone-sensitive polyhedron-three-dimensional porous graphite hydrogel composite membrane (claimed). ADVANTAGE - The method is simple with good repeatability at low cost. Membrane has excellent performance. DETAILED DESCRIPTION - Preparation of acetone-sensitive polyhedron-three-dimensional porous graphite hydrogel composite membrane comprises adding graphene oxide to deionized water, ultrasonic treating, adding hydroquinone, and magnetically stirring; adding to PTFE liner of high pressure reactor, sealing, placing in blast oven, reacting, and naturally cooling to room temperature; centrifuging, washing with deionized water and absolute ethanol, respectively, and freeze-drying to get three-dimensional porous graphene gel; adding cobalt nitrate hexahydrate and 2-methyl imidazole to deionized water, and magnetically stirring; adding three-dimensional porous graphene gel, and magnetically stirring; adding cobalt nitrate and graphene mixture, and magnetically stirring for 6 hours; centrifuging, washing with deionized water and absolute ethanol, respectively, and oven drying at 80 degrees C for 24 hours; and heat treating in quartz boat, grinding with absolute ethanol, and coating on interdigital electrode.