摘要:氟化石墨具有疏水疏油的特性,是一种新型的功能材料。可用作高温固体润滑剂、高能锂电池的阴极材料及新型电导材料等。而氟化石墨烯作为石墨烯的一种新型衍生物,既具有石墨烯的功能又具有氟化石墨的功能,既保持了石墨烯的高强度特性,又因氟原子的引入获得了表面能降低、疏水性增强以及带隙展宽等新颖的界面和电化学特性。本课题的研究目的是利用商品化的氟化石墨作为反应原料来制备氟化石墨烯,采取不同的方法,探索反应条件对氟化石墨烯结构的影响。研究结果表明:将氟化石墨置于NMP中,利用强酸如浓硫酸、高氯酸在一定的温度下对其进行剥离,并对样品进行检测分析,结果显示强酸对氟化石墨的剥离起到促进作用。将氟化石墨同不同质量比的氢氧化钠、氢氧化钾混合物置于300 ℃下反应10 h,然后对混合物进行洗涤过滤,得到氟化石墨烯,并对其进行分析检测,结过显示氢氧化钠与氢氧化钾混合物比例在1:1时,对氟化石墨的剥离反应影响最大。34066
毕业论文关键词:氟化石墨;氟化石墨烯;润滑材料
Preparation of fluorinated graphene
Abstract: Fluorinated graphite having a hydrophobic oleophobic characteristics, is a new type of functional materials. Can be used as solid lubricant temperature, high-energy lithium battery cathode materials and new electrically conductive materials. The fluorinated graphene as a novel derivative graphene, graphene both function and a fluorinated graphite function, while maintaining the high strength characteristics of graphene, because of the introduction of fluorine atoms can be reduced to obtain a surface hydrophobic enhancement and broadening the bandgap and other innovative interface and electrochemical properties. The purpose of this paper is to use commercially available fluorinated graphite as a starting material for the preparation of fluorinated graphene, take a different approach, to explore the effects of reaction conditions on fluorinated graphene structure. The fluorinated graphite into NMP, using a strong acid such as concentrated sulfuric acid, perchloric acid, at a certain temperature its peeling. Fluorinated graphite with different mass ratio of sodium hydroxide, potassium hydroxide, the reaction mixture was placed under 300 ℃, to give fluorinated graphene.
Key Words: Fluorinated graphite;Fluorinated graphene;Lubricating materials
目 录
1 前言 1
1.1 石墨烯的现状与研究 1
1.2氟化石墨 3
1.2.1 氟化石墨的性质 4
1.2.2 氟化石墨的应用 4
1.3 氟化石墨烯 6
1.3.1 氟化石墨烯的性质 6
1.3.2 氟化石墨烯的应用 7
1.3.3 氟化石墨烯的制备 8
1.4 本课题研究的目的与意义 9
1.5 主要研究内容 9
2 实验 10
2.1 使用的材料试剂、仪器设备 10
2.1.1 使用的材料试剂 10
2.1.2 实验仪器与设备 10
2.2 氟化石墨烯的制备过程 11
2.2.1 氟化石墨在HClO4中剥离 11
2.2.2 氟化石墨在H2SO4中剥离 11
2.2.3 氟化石墨在氢氧化钠和氢氧化钾混合物中剥离 11
2.3 样品表征方法 12
2.3.1 XRD表征 12
2.3.2 扫描电镜 12
2.3.3 红外光谱表征 13
3 实验结果与讨论 15
3.1 氟化石墨在HClO4中剥离 15 氟化石墨烯的制备+文献综述:http://www.youerw.com/huaxue/lunwen_31443.html