毕业设计论文-hunsdiecker反应促进的石墨烯氟化反应的研究论文.doc

内蒙古科技大学本科生毕业论文 题 目：Hunsdiecker反应促进的石墨烯氟 化反应的研究 学生姓名：张文 学 号： 1077145206 专 业：稀土工程 班 级：稀土10-2 班 指导教师：邢瑞光 讲师 摘 要 石墨烯作为一种新型材料，自发现以来引起了各界研究人员的普遍关注。而氧化石墨烯（GO）是由单层碳原子sp2杂化形式的二维蜂窝状晶格结构，其表面含有大量的含氧官能团，拥有良好的亲水性，也为GO进一步功能化提供充足的活性位点。因此功能化石墨烯的研究成为热点。石墨烯，多数是用于生物医药等的科学。这种方法不仅操作工艺简单，同时还能保持石墨烯自身的结构和性质，所以，卤化石墨烯应运而生。 本文以改进的Hummers法为基础合成了氧化石墨烯，更进一步了羧基化石墨烯，羧基化石墨烯不仅好，电催化作用。然后通过改进的Hunsdiecker反应，对羧基化石墨烯进行脱羧氟代，进而最终制备氟化石墨烯。用紫外光谱法、热失重、红外光谱法、XRD衍射以及核磁共振等方法对氟化石墨烯的官能团及结构进行了表征，同时做了相关的沉降实验，并用接触角测试和zeta电位测试对氟化石墨烯进行了化学性能分析。 关键词：石墨烯；功能化；脱羧；氟代；氟化石墨烯 Abstract As a new type of material, since its foundation, grapheme has caused wide attention of the researchers from all walks of life. And grapheme oxide (GO) is a monolayer of carbon atoms in sp2 hybrid form of a two-dimensional honeycomb lattice structure, its surface contains a lot of oxygen containing functional groups, which has good hydrophilicity, and it also provides plenty of active sites to GO further functionalization. So the functionalization of grapheme research becomes a hot spot. Noncovalent functionalization of grapheme, most are used for scientific research on biological medicine, etc. This method is not only simple operation process, at the same time, it also can maintain the structure and properties of grapheme itself, so the halide grapheme arises at the historic moment. In this paper, based on the improved Hunmmers method further synthesized graphene oxide, and further preparation of the carboxyl graphene, carboxyl graphene not only has good water soluble carboxyl fossils, but also has good electrical catalysis. Then by improving Hunsdiecker reaction of carboxyl graphene decarboxylation fluoro olefin, can we get the final preparation of graphite fluoride. Through ultraviolet spectroscopy, thermal weightlessness, infrared spectrometry, XRD diffraction and nuclear magnetic resonance (NMR) methods of graphite fluoride graphene functional groups and structures have been