聚苯胺在氧化钛纳米管中的电化学合成研究
毕业论文关键词 聚苯胺 钛纳米管 电化学聚合 中性溶液 CV
Title Study on The Electropolymerization of Polyaniline on Titanium Oxide Nanotubes
Abstract As a conductive polymer material, Polyaniline (PANI) has a good electrical conductivity and chemical stability, electrochemical reversibility and excellent electromagnetic microwave absorbing properties. Due to the simple methods of synthesis, Polyaniline has become one of the fastest polymer materials in the research progress. However, Polyaniline with nanostructures has a more unique performance, not only in traditional applications, but also can play an important role in the more updated application fields. It is well-known that the chemical synthesis of polyaniline generally need to be at low temperatures with greater pollution, while electrochemical synthesis of polyaniline merely need to be at room temperature and the electrolyte can be used repeatedly with less pollution. Therefore, the electrochemical synthesis of polyaniline has a certain practical significance in the practical study. In this paper, firstly, we prepared four different highly ordered titania nanotube array in 15min, 30min, 60min, 120min oxidation time with using secondary oxidation method. Different titania nanotube lengths depend on the different oxidation time. Secondly, we annealed the sheet of titanium with a titanium substrate. Thirdly, we polymerized polyaniline in a three-electrode electrochemical system. Fourthly, we separately tested the performance of different lengths of the nanotube electrodes on charging and discharging in an acidic solution and a neutral solution, so as to the impedance characteristic. Then, we each selected the one which has excellent characteristics in power and capacitance in the acidic solution and the neutral solution. Finaly, we did a test and got the CV curves under different scan rates and the charge-discharge curves under the different current densities.
Keywords Polyaniline titania nanotube electrochemical synthesis neutral solution CV
目 次
1 绪论· · ·1
1.1 二氧化钛及氧化钛纳米管 · 1
1.2 导电高分子及聚苯胺· · · 2
1.3 聚苯胺的合成研究现状· · ·3
1.4 本文研究内容 · 4
2 实验部分· 6