摘要
综述了当前比较热门和新颖的氧化石墨烯(GO)的还原方法,特别是直接还原剂还原法、微波辅助还原法、紫外辐照还原法等,并对这些还原方法可能存在的问题进行了分析;评述了当前还原氧化石墨烯(RGO)的常用表征方法,如原子力显微镜(AFM)、拉曼光谱(RS)、X射线光电能谱(XPS)、红外(IR)光谱、X射线衍射(XRD)等测试技术。针对当前GO、RGO及石墨烯(GNS)界定不明导致使用较为混乱的状况,通过前期的研究成果及综合分析文献中相关材料的含氧量,提出可通过三者氧含量来大致区分GO、RGO及GNS,即氧含量在20%以上为GO,5%～20%为RGO,5%以下为GNS;此外,还可通过含氧量将GO还原方法划分为温和还原法、强还原法及超强还原法3种类型。文中最后对还原GO的方法进行了展望。
We reviewed the reduction solutions of graphene oxide（GO） including the direct- reduction reagent, microwave-assistant, and ultraviolet irradiation methods in terms of previous reports. Moreover, the characterized methods,such as AFM.RS.XPS,IR and XRD, towards reduced GO （RGO） were reviewed. Especially, the authors attempted to discriminate the GO, RGO and graphene sheet （GNS） by employing the oxygen content in such graphitized carbon materials according to the prior research results from the authors and the other researchers. The GO, RGO and GNS could be defined where the oxygen content is above 20%, 5%~20%, and below 5%, respectively, and the reduction solutions of GO could be corresponded to the soft, strong and super strong scales in terms of the oxygen content. Finally, the development of the reduction solutions for GO was prospected.
出处
《炭素技术》
CAS
北大核心
2013年第5期29-36,共8页
Carbon Techniques
基金
国家自然科学基金项目(51372186)资助
国家重点基础研究发展计划(973计划)课题(2012CB215504)
关键词
氧化石墨烯
还原氧化石墨烯
石墨烯
还原
表征
含氧量
Graphene oxide
reduced graphene oxide
graphene
reduction
characterization
oxygen content
