• 专利标题:   Preparing graphene composite aerogel by intercalation-in-situ polymerization synergistic method comprises dissolving metal sulfate or transition metal sulfate in water, placing graphene composite aerogel in tube furnace, and removing template by high temperature calcination.
  • 专利号:   CN114572973-A
  • 发明人:   CHEN H, LIANG H, JIAO J, DENG X, XUE Z
  • 专利权人:   YINGKOU TECHNOLOGY INST
  • 国际专利分类:   B01J013/00, C01B032/19, C01B032/194
  • 专利详细信息:   CN114572973-A 03 Jun 2022 C01B-032/19 202290 Chinese
  • 申请详细信息:   CN114572973-A CN10477166 03 May 2022
  • 优先权号:   CN10477166

▎ 摘  要

NOVELTY - Preparing graphene composite aerogel by an intercalation-in-situ polymerization synergistic method comprises dissolving metal sulfate or transition metal sulfate in deionized water, introducing polymer water-soluble material to deionized water, using integrated plexiglass plate to make a self-made electrolytic cell, introducing it into an electrolytic cell as an electrolyte, taking out graphene composite hydrogel and pouring into a beaker, peeling off under the action of a high-speed dispersing shear to obtain a relatively high number of layers, uniformly dispersing graphene composite hydrogel, placing graphene composite aerogel prepared by high-speed shear exfoliation in an abrasive tool, obtaining graphene composite aerogel by freeze-drying technology by using the ice template method gel, placing graphene composite aerogel in a tube furnace, and under the protection of argon, and removing template by high temperature calcination. USE - The method is useful for preparing graphene composite aerogel by intercalation-in-situ polymerization synergistic method ADVANTAGE - The method has simple production technique, mild condition, easily obtained raw material, economical, relatively natural and environment-friendly reaction process, the method provides a novel design idea for preparation with high performance graphene and novel idea for the future macro preparation scale carbon gas gel scale. DETAILED DESCRIPTION - Preparing graphene composite aerogel by an intercalation-in-situ polymerization synergistic method comprises (1) dissolving metal sulfate or transition metal sulfate in deionized water, stirring continuously, and configuring a solution with a concentration of 0.1-5 mol/l; (2) introducing polymer water-soluble material to deionized water, heating and stirring to dissolve, and configuring a solution with a concentration of 0.1-10%; (3) preparing sodium stearate solution by introducing sodium stearate solid in deionized water, heating and stirring to dissolve, and configuring a solution with a concentration of 0.1-10%; (4) using integrated plexiglass plate to make a self-made electrolytic cell, where the anode and cathode are both graphite, and the two electrodes are respectively connected to the anode and cathode of the DC power supply through wires, placing electrolytic cell in a constant temperature water bath ultrasonic in the cleaning apparatus; (5) mixing the above (1) and (2), (1) and (3) uniformly, introducing it into an electrolytic cell as an electrolyte, and under the action of a DC power supply, by controlling the voltage or current, performing electrochemical exfoliation to obtain a graphene composite hydrogel dispersed in the electrolyte; (6) taking out graphene composite hydrogel and pouring into a beaker, peeling off under the action of a high-speed dispersing shear to obtain a relatively high number of layers, uniformly dispersing graphene composite hydrogel; (7) placing graphene composite aerogel prepared by the above (6) high-speed shear exfoliation in an abrasive tool, obtaining graphene composite aerogel by freeze-drying technology by using the ice template method gel; (8) placing graphene composite aerogel in a tube furnace, and under the protection of argon, removing template by high temperature calcination.