3D多孔石墨烯薄膜的制备及其表征

The preparation and characterization of three-dimensional graphene porous thin films

以天然鳞片石墨为原料,采用改进的Hummers法制备氧化石墨烯,用水合肼还原法制备了石墨烯,通过模板法制备了3D多孔石墨烯薄膜,使孤立的石墨烯片层结构有效地联接起来,组成空间互联网络结构,从而构建了电子、热能和载荷有效传输的通道,3D结构的建立有效地提高了石墨烯基多孔材料的导电性能。

The graphene oxide is prepared by improved Hummers method, then freezing dry and vacuuming thermal reduction, reduced graphene oxide by using hydrazine as a reducing agent is obtained. The solvent was removed in high pressure liquid phase, the graphene nanosheets are self-assembled into ordered 3D porous graphene films by the template method. The isolated graphene sheet structure can be connected together effectively to form a spatial network structure, which can build an effective transmission channel for electrons, thermal energy and load.