不同还原剂制备石墨烯及其表征  

Preparation and characterization of graphene by different reductant

作　　者：李子庆[1] 赫文秀[1] 张永强[1] 邵志海 于慧颖[1] LI Zi-qing;HE Wen-xiu;ZHANG Yong-qiang;SHAO Zhi-hai;YU Hui-ying(School of Chemistry and Chemical Engineering,Inner Mongolia University of Science ＆Technology,Baotou Inner Mongolia 014010,China)

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头014010

出　　处：《电源技术》2018年第6期865-867,共3页Chinese Journal of Power Sources

基　　金：内蒙古自然科学基金(2015MS0208);内蒙古自治区高等学校青年科技英才计划-青年科技领军人才A类项目(NJ YT-14-A08);包头市科技计划项目(2015C2004-1;2016-4)

摘　　要：采用Hummers法制备氧化石墨(GO),再分别以柠檬酸钠、水合肼和硼氢化钠还原处理氧化石墨,得到石墨烯(RGO)。利用傅里叶红外光谱(FT-IR)、X-射线衍射(XRD)、场发射扫描电子显微镜(FES EM)和原子力显微镜(AFM)等测试方法对氧化石墨和石墨烯微观结构和形貌进行了对比分析。研究结果表明:经冷冻干燥处理可以得到氧化程度更高的GO,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的控制还原,制备了高质量的石墨烯材料。The graphene oxide（GO） were prepared through Hummers method, and then the graphene were produced by sodium citrate, hydrazine hydrate and sodium borohydride to reduce the exfoliated graphite oxide nanosheet. The microstructure and morphology of graphite oxide and graphene were characterized by Fourier transform infrared spectroscopy（FT-IR）, X-ray diffraction（XRD）, field emission scanning electron microscope（FESEM） and atomic force microscope（AFM）, respectively. The results show that the graphene oxide with highly oxidation degree was obtained by freeze drying, and high-quality graphene was prepared using sodium citrate as environment-friendly reductant under mild condition.

关 键 词：冷冻干燥 柠檬酸钠 氧化石墨 石墨烯 

分 类 号：TM912[电气工程—电力电子与电力传动]