摘要用聚丙烯腈(PAN)和三聚氰胺作为材料,利用静电纺丝法制备出用三聚氰胺作软 模板剂后改性所得的聚丙烯腈纳米纤维前驱体。经过预氧化、碳化之后就可以获得交 联状的多孔纳米碳纤维。使用红外光谱(FTIR)仪、扫描电子显微镜(SEM)、拉曼光谱 仪、有机元素分析、XPS 法和比表面积分析仪等分析仪器对用三聚氰胺改性的 PAN 前 驱体及交联状的多孔纳米碳纤维纤维进行测试和表征。对于 N 元素的掺杂,含量越高 就越能够优化纳米碳纤维电极材料的电化学特性。利用自制的用于测试电容特性的三 相电极液体体系,分析得知 CNF02 在电流密度大小为 0。05 A/g 时的比电容大小是 195 F/g,在电流密度大小为 2 A/g 时,将 CNF02 充电、放电就这样来回循环 1000 次,分 析数据可得其保持率的大小为 99。30%,说明了其良好的循环稳定性。74318
毕业论文关键词 三聚氰胺; 静电纺丝; 纳米碳纤维; 交联网络; 超级电容器
Title Polyacrylonitrile/Nitrogen body electrostatic spinning preparation of electrode materials and performance study
Abstract With polyacrylonitrile (PAN) and melamine as materials, prepared by electrostatic spinning method with melamine additives after modification of polyacrylonitrile precursor of nano fiber。 After oxidation and carbonization can get crosslinking structure of porous carbon nanofibers。 Using infrared spectroscopy (FTIR), scanning electron microscope (SEM), Raman spectrometer, organic elemental analysis and XPS analysis method and the specific surface area analyzer instrument to use melamine modified polyacrylonitrile nanofibers precursor and the crosslinking structure of porous carbon nanofibers fiber testing and characterization。 High levels of N elements doping can optimize electrode materials of electrochemical performance of carbon nanofibers。 Through the home-made three electrode system test the electrochemical characteristic of the material, found CNFM2 electrode materials in the current density of 0。05 A/g the specific capacitance is 195 F/g, when the current density of 2 A/g, after loop 1000 times of charge and discharge ,the capacitance retention rate is 99。30%, so it has good cycle stability and superior electrochemical properties。
Keywords: melamine; Electrostatic spinning;Carbon nanofibers; Crosslinking network; The super capacitor
1 绪论 1
1。1 前言 1
1。2 静电纺丝法原理 1
1。3 静电纺丝技术应用 2
1。4 展望 3
2 实验部分 5
2。1 实验药品与仪器 5
2。1。1 实验所用药品 5
2。1。2 实验所用仪器 5
2。2 实验步骤 6
2。2。1 纺丝液的配制 6
2。2。2 纺丝实验 6
2。2。3