多孔石墨烯制备及其纳米复合材料的研究进展

Review on the preparation of porous graphene and its nanocomposite

多孔石墨烯是一种在石墨烯二维纳米基面上具有纳米孔隙或三维网络结构的多孔碳材料,不仅保留了石墨烯的本征性质,更赋予材料较大的可接触面积和丰富的孔隙结构,这些孔隙的存在有利于物质运输和筛分,使得石墨烯及其复合材料在纳米粒子负载、物质运输、吸附、分离等方面展示出广阔的应用前景。综述了多孔石墨烯的制备方法,包括活化法、冷冻干燥法、模板法和沉积法,以及多孔石墨烯在超级电容器、锂-氧电池、吸附、分离领域的应用现状,并展望了未来的发展方向。

Porous graphene was a family of porous carbon with three-dimension network structures,which was prepared based on graphene with two-dimension tructures.Porous graphene possesses some natural properties of grapheme,and larger surface area as well as abundant pores.These nanopores facilitate transportation and separation of molecules,which makes the porous graphene and porous graphene based nanocomposites potential in nanoparticles loading,transportation,absorption and separation etc.The synthesis method of porous graphene including activation method,freeze-drying method,hard and soft template method,as well as deposition method were reviewed.Besides,the applications and outlook of porous graphene in supercapacitors,Li-O2 cells,absorption and separation were introduced.