聚苯胺封装石墨烯复合材料的制备及电学应用研究

发布时间：2018-04-01 21:38

本文选题：石墨烯　切入点：聚苯胺　出处：《南京邮电大学》2017年硕士论文

【摘要】：石墨烯获得2010的诺贝尔奖之后引起了研究者的广泛关注,随着对石墨稀性能的深入研究,发现石墨烯的电学性能和稳定性是其他材料所不完全具备的。聚苯胺作为三大导电高分子材料之一,虽然具有很好的导电性但是稳定性并不乐观,限制了聚苯胺的应用,于是本文围绕这两种材料的电学性能和稳定性做了一些研究,以实现二者的优势互补。1.首先本论文研究了一种水性聚苯胺封装石墨烯材料的制备方法,并将该材料应用于防静电涂料,测试了其防静电的性能,结果显示其具有很好的防静电作用,能够满足工业应用标准,并且具有很好的稳定性,是一种环境友好型防静电涂料。2.其次本论文报告了一种简单的方法,通过直接的原位聚合制备石墨烯/聚苯胺(G/PANI)纤维。并将两根纤维在H2SO4-PVA电解质中浸泡,得到全固态的石墨烯/聚苯胺超级电容器,将该超级电容器固定于PET薄膜上可以得到柔性的全固态超级电容器,并对该全固态超级电容器性能做出了测试。3.最后本论文针对第二部分的制备方法做出了改进,采用更环保的电化学方法制备了聚苯胺封装石墨烯纤维的超级电容器电容材料,并对该材料的电容性能和循环稳定性做了测试,最后为了得到更高的循环稳定性,本文又研究了电容损失的原因,并采用低电压窗口的方法避免了电容的损失,得出了更好的循环稳定性。
[Abstract]:After winning 2010 Nobel Prize, graphene has attracted extensive attention of researchers, with the further study of graphite dilute properties, It is found that the electrical properties and stability of graphene are not completely possessed by other materials. Polyaniline, as one of the three conducting polymer materials, has good electrical conductivity, but its stability is not optimistic, which limits the application of Polyaniline. In this paper, the electrical properties and stability of the two materials are studied in order to realize the complementary advantages of the two materials. Firstly, the preparation method of a waterborne Polyaniline encapsulated graphene material is studied in this paper. The material is applied to antistatic coating, and its antistatic performance is tested. The results show that the material has good antistatic effect, can meet the industrial application standard, and has good stability. This paper reports a simple method to prepare graphene / Polyaniline G / PANIfiber by direct in situ polymerization and immerse the two fibers in H2SO4-PVA electrolyte. An all-solid-state graphene / Polyaniline supercapacitor is obtained. A flexible all-solid supercapacitor can be obtained by fixing the supercapacitor onto a PET film. The performance of the all-solid supercapacitor was tested. Finally, the preparation method of the second part was improved, and the Polyaniline supercapacitor material encapsulated graphene fiber was prepared by a more environmentally friendly electrochemical method. The capacitance performance and cycle stability of the material are tested. Finally, in order to obtain higher cycle stability, the reason of capacitance loss is studied, and the loss of capacitance is avoided by using the method of low voltage window. A better cycle stability is obtained.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB332

【参考文献】