离子液体掺杂石墨烯的制备表征及分散性研究  

Preparation and characterization of ionic liquids doped graphene and research on their dispersion

作　　者：张利锋[1] 高玉双[1] 张金振[1] 刘毅[1] 郭守武[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2015年第4期41-44,64,共5页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(21203116);陕西省科技厅自然科学基金项目(2013JQ2018);陕西省教育厅专项科研计划项目(2013JK0934);陕西科技大学"三秦学者"科研启动基金项目(BJ11-26);陕西科技大学学术骨干培育计划项目(XSG(4)006);陕西科技大学博士科研启动基金项目(BJ12-09)

摘　　要：采用两步法制备三种不同链长的咪唑四氟硼酸类离子液体,并将其掺杂进石墨烯样品中.通过XRD、FT-IR、SEM以及TG等方法对样品进行了表征,并对离子液体掺杂石墨烯在有机溶剂中的分散性进行了比较系统的研究.实验结果表明:离子液体掺杂的石墨烯样品保持了较高的热稳定性,同时显著提高了样品在有机溶剂中的分散性,而且离子液体链长增加有利于样品的均匀分散.Three imidazolium tetrafluoroborate ionic liquids with different chain length were synthesized by two-step method and doped into graphene samples.The samples of graphene and ionic liquids doped graphene were characterized by XRD,FT-IR,SEM and TG.The dispersion properties of ionic liquids doped graphene were further systematic studied.Experimental results show that ionic liquids doped graphene keep high thermal stability and improve the dispersion properties in organic solvents.Additionally,increasing the chain length of ionic liquids promote the uniform dispersion of samples in organic solvents.

关 键 词：离子液体 石墨烯 掺杂 分散性 

分 类 号：O613.71[理学—无机化学]