基于多孔氧化钛的聚苯胺纳米复合电极的研究
关键词 混合电容器 TiO2纳米管 聚苯胺 酸性溶液 中性溶液
毕业论文设计说明书外文摘要
Title Study on polyaniline nano-composite electrode based on Porous titanium oxide
Abstract
In this work, TiO2 nanotubes were fabricated by anodic oxidation and the influence of temperature、voltage and secondary oxidation on nanotube morphology was discussed. The results indicate higher temperature can lead to the large pores on the film surface; The nanotube length increases with the applied voltage increasing; secondary oxidation makes the nanotubes more structured.Polyaniline was polymerized in TiO2 nanotubes and it is difficult to polymerize when nanotube length is longer. Three-electrode system, consisting of the working electrode of PANI/TiO2 nanotube arrays, the counter electrode of foil and the reference electrode of calomel,was developed. Polyaniline was polymerized with different length nanotube and different quantity and the difference on property of polyaniline in acid and neutral solution was discussed. The activity and stability of polyaniline is high in the acid solution whether polyaniline is polymerized in nanotubes or stainless steel. Polyaniline polymerizing in nanotubes is still active in neutral solution. But polyaniline polymerizing in stainless stell is poor in the neutral solution and activity disappears after several cycles.
Keywords Hybrid capacitor TiO2 nanotubes Polyaniline acid solution Neutral solution
目 次
1 绪论 1
1.1 课题背景及研究意义 1
1.2 电化学电容器的分类及工作原理 1
1.3 阳极氧化制备二氧化钛纳米管阵列) 2
1.4 聚苯胺的合成 3
1.5 本文主要研究内容 3
2 TiO2纳米管的制备 4
2.1 钛片的抛光 4
2.2 温度对二氧化钛纳米管阵列形貌的影响 4
2.3 电压对二氧化钛纳米管阵列形貌的影响 6
2.4 二次氧化对二氧化钛纳米管阵列形貌的影响 8
2.5 本章小结 10
3 二氧化钛纳米管阵列上聚苯胺的沉积 12
3.1 二氧化钛纳米管阵列的煅烧对聚合聚苯胺的影响 12
3.2 二氧化钛纳米管阵列的还原 13
3.3 二氧化钛纳米管阵列长度对聚合聚苯胺的影响 14
3.4 本章小结 15
4 TiO2/PANI复合电极在酸性溶液里的电化学性能研究 16
4.1 二氧化钛纳米管长度对TiO2/PANI复合电极的电化学性能影响 16
4.2 聚合量对TiO2/PANI复合电极的电化学性能影响 19