热剥离法制备功能型石墨烯的研究进展  

Research progress of functional graphene prepared by thermo exfoliation method

作　　者：杨云雪[1] 关毅[1] 张利华[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《功能材料》2013年第24期3526-3533,共8页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20976121);天津市自然科学基金资助项目(10JCZDJC23800)

摘　　要：氧化石墨热剥离法制备石墨烯,将还原过程由传统的液固相变为气固相,这样减少了影响还原的因素,简化了工艺。在避免使用相对昂贵的液体还原剂的同时,解决了液固还原难以避免的因自重构造成的石墨烯再团聚问题。该法制备的石墨烯层数少,并为规模化和可控地制备石墨烯提供了有利条件。综合近年来研究成果,对该法涉及的剥离机理,以及氧化和热剥离还原两部分的各种影响因素进行分析和讨论,并结合该方法所存在的不足对未来研究进行了展望。The reduction of graphite oxide was the most possible method to achieve mass production of gra-phene.A number of methods have been developed to exfoliate graphite oxide,and each method has its own ad-vantages and disadvantages.Thermal exfoliation was the most economical way to obtain large quantities of gra-phene especially functional graphene.The exfoliation mechanism was mainly based on that the sudden expan-sion gases evolved into the spaces between graphene sheets during the heat-treatment process of graphite oxide. Thermal exfoliation can be realized when the sudden expansion gases pressure overcomed the attractive van der Waals inter-actions between layers.However,different oxidation and reduction processes make the functional graphene with different properties.In this paper,current research was reviewed,the mechanism of the oxida-tion and thermal exfoliation was discussed,which may contribute us to effectively use the controllable factors to partially control the preparation of functional graphene.

关 键 词：热剥离 氧化石墨 石墨烯 功能型石墨烯 机理 

分 类 号：O613.71[理学—无机化学]