柠檬酸钠绿色还原制备石墨烯  

"Green" reduction of graphene oxide to graphene by sodium citrate

作　　者：万武波[1] 赵宗彬[1] 胡涵[1] 周泉[1] 范彦如[1] 邱介山[1,2] 

机构地区：[1]大连理工大学化工学院炭素材料研究室,大连理工大学精细化工国家重点实验室,辽宁大连116012 [2]大连理工大学,辽宁省微纳米技术及系统重点实验室,辽宁大连116023

出　　处：《新型炭材料》2011年第1期16-20,共5页New Carbon Materials

基　　金：国家自然科学基金(51072028,20836002,20725619)~~

摘　　要：采用环境友好型还原剂柠檬酸钠,成功实现了温和条件下氧化石墨(GO)的控制还原,制备得到了石墨烯材料。利用扫描电子显微镜(SEM)、X-射线衍射(XRD)、紫外可见吸收光谱(UV-vis)、傅立叶红外光谱(FT-IR)等对所得产物进行了分析表征,并研究比较了氧化石墨与氧化石墨烯还原产物(RGO)的电子输运性能。结果表明:柠檬酸钠可在温和条件下还原氧化石墨得到高质量的石墨烯。Graphene was produced from graphene oxide using sodium citrate as the reducing agent under mild conditions.The products were characterized by scanning electron microscopy,X-ray diffraction,ultraviolet visible absorption spectroscopy and Fourier transform infrared spectrometry.Results indicate that the electrical conductivity of graphene oxide was increased by over three orders of magnitude after reduction with sodium citrate,and the obtained graphene showed nonlinear I-V curves.

关 键 词：氧化石墨 石墨烯 柠檬酸钠 选择性还原 

分 类 号：TB383.1[一般工业技术—材料科学与工程]