乙醇胺功能化石墨烯的制备与表征  

Preparation and Characterization of Functionalized Graphene with Ethanolamine

作　　者：马文石[1] 周俊文[1] 林晓丹[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510640

出　　处：《化学学报》2011年第12期1463-1468,共6页Acta Chimica Sinica

基　　金：国家自然科学基金(No.51072059)资助项目

摘　　要：乙醇胺在温和条件下与氧化石墨烯反应,然后经水合肼还原得到功能化的石墨烯.干燥的功能化石墨烯经超声处理后,可稳定分散于水、乙醇、丙酮和N,N二甲基甲酰胺(DMF)等溶剂中.原子力显微镜(AFM)、透射电镜(TEM)分析表明功能化石墨烯平均厚度为3～4 nm.傅里叶变换红外光谱(FTIR)、X射线光电子能谱(XPS)、X射线衍射(XRD)对功能化石墨烯的结构分析表明:乙醇胺与氧化石墨烯发生了化学反应,并通过共价键连接到石墨烯的六元环上.TG结果表明功能化石墨烯的热稳定性比氧化石墨烯有所提高,但低于还原氧化石墨烯.A novel chemical functionalized graphene（FG） was fabricated through facial covalent function-alization ethanolamine.The dried functionalized graphene can be dispersed homogeneous in water,ethanol,acetone and N,N-dimethylformamide by treating with ultrsonic.Atomic force microscope（AFM） and trans-mission electron microscope（TEM） figures suggest that the functionalized graphene has an average thick-ness of 3～4 nm.Fourier transform infrared spectroscopy（FTIR）,X-ray photoelectron spectroscopy（XPS） and X-ray diffraction（XRD） were used to characterize the structure of the functionalized graphene.The re-sults showed that ethanolamine had reacted with graphene oxide and connected with hexatomic rings through covalent bonds.The thermostability of functionalized graphene was better than that of graphite ox-ide,but inferior to that of reduced graphene oxide.

关 键 词：乙醇胺 功能化 石墨烯 可分散性 

分 类 号：TB34[一般工业技术—材料科学与工程]