纳米粒径氧化石墨烯的制备及表面改性研究  

Study on Preparation and Surface Modification of Nano-sized Graphene Oxide

作　　者：衣梓硕 辛俞翰 孔蒙迪 陈春梅 何铁石[1,2] YI Zishuo;XIN Yuhan;KONG Mengdi;CHEN Chunmei;HE Tieshi(College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China;Liaoning Supercapacitor Engineering Technology Center,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,渤海锦州121013 [2]渤海大学辽宁省超级电容器工程技术研究中心,渤海锦州121013

出　　处：《现代信息科技》2020年第15期55-57,共3页Modern Information Technology

基　　金：国家级大学生创新创业项目(202010167019);国家重点计划研发资助(2020YF F0413818);辽宁省自然科学基金(0518XN011、0519BS014);辽宁省大学生创新创业项目(S202010167045、S202010167046)。

摘　　要：以鳞片石墨为原料,采用球磨法制备纳米级石墨烯。然后控制氧化过程得到具有一定厚度、粒径和表面氧化程度的纳米尺寸氧化石墨烯。利用表面改性剂对氧化石墨烯进行表面改性,考察其在有机溶剂中的相容性和稳定性。通过扫描电子显微镜、激光粒度分析和沉降实验对比分析等,对其形貌结构、物理化学性能和溶液稳定性进行测试表征,结果显示,通过球磨法、控制氧化程度和表面改性过程,可得到在有机溶剂中稳定存在的纳米粒径氧化石墨烯。Nano-sized graphite powder was prepared by ball milling with flake graphite as raw material.Then,the nano-sized graphene oxide with certain thickness,particle size and surface oxidation degree was obtained by controlling the oxidation process.Graphene oxide was modified by surface modifier,and its compatibility and stability in organic solvents were investigated.The morphology,physicochemical properties and solution stability of graphene oxide were characterized by scanning electron microscopy,laser particle size analysis and sedimentation experiments.The results showed that nano-sized graphene oxide stably existed in organic solvents could be obtained by ball milling,controlling oxidation degree and surface modification process.

关 键 词：氧化石墨烯 表面改性 球磨纳米化 氧化程度 分散稳定性 

分 类 号：TQ423.2[化学工程]