不同还原方法对氧化还原法制备的功能化石墨烯的影响  

Effect of different reduction methods on functional graphene prepared by redox method

作　　者：叶飞[1,2] 余林[1] 曹小荣[1] 陈胜洲[2] 林维明[2] 

机构地区：[1]广东工业大学轻工化工学院,广州510006 [2]广州大学化学化工学院,广州510006

出　　处：《化工新型材料》2012年第6期63-65,共3页New Chemical Materials

基　　金：国家自然科学基金(21076048);广东省自然科学基金(S2011040005569);广东省科技计划项目(2010B010900039);广州市科技计划项目(2009J1-C431-1)

摘　　要：利用改进的Hummer法制备氧化石墨,然后分别采用化学还原法和热还原法将氧化石墨还原制得功能化石墨烯。采用X-射线衍射(XRD)、扫描电镜(SEM)、傅立叶红外(FT-IR)和热重(TG)等表征手段对功能化石墨烯制备过程中的原料石墨、氧化石墨和石墨烯进行了表征。结果表明,化学还原法和热还原法都能还原氧化石墨制得功能化石墨烯,但还原程度不同。与化学还原法相比,热还原法制备的功能化石墨烯含有较少含氧基团,且工艺简单,耗时少,是一种高效制备大量功能化石墨烯的方法。Functional graphene was prepared by chemical reduction or thermal reduction of graphite oxide synthe- sized by an improved Hummer＇ s method. The graphite, graphite oxide and functional graphene were characterized by X-ray diffraction（XRD） ,scanning electron microscopy（SEM）, FT-IR and thermogravimetry（TG）. The results showed that the functional graphene can be prepared by chemical reduction method and thermal reduction method, respectively, but with dif- ferent reduction degrees. Compared with the chemical reduction method, the thermal reduction method was a fast and effi- cient way to prepare the functional graphene on a large scale because of its simple process, time saving and lower content of oxygen containing groups.

关 键 词：功能化石墨烯 氧化-还原法 化学还原法 热还原法 

分 类 号：TB383.1[一般工业技术—材料科学与工程]