摘 要：论文以活性炭为基体，通过乙二醇原位还原氯铂酸，获得活性炭/铂材料（AC/Pt），然后以此纳米铂催化苯胺无电聚合，得到活性炭/铂/聚苯胺复合材料（AC/Pt/PAN），并将其作超级电容器电极材料。通过FT-IR和SEM对产物进行了表征，结果表明：铂存在于活性炭的孔隙中，聚苯胺被成功附着在活性炭的孔隙及表面。采用循环伏安、恒电流充放电和交流阻抗测试方法对其电化学性能进行了测试，考察了氯铂酸用量、苯胺的浓度对电极材料性能的影响。测试结果表明在1mol· L–1的H2SO4电解液中，0。0~1。0V电位范围内，氯铂酸的用量不同、苯胺浓度的不同，电极材料表现出不同的电容性能。在1A/g电流密度下，当活性炭为0。4g，氯铂酸的用量为3mL、苯胺浓度为15%时所得的AC/Pt/PAN复合材料表现出最好的电容性能，其比容量为160。0F/g，较AC以及其他苯胺浓度的电极材料的比容量更大。同时，随着苯胺浓度从5%增加到15%，复合材料的电容性能不断提高，由此推断聚苯胺的最佳浓度在15%或以上，需要后续实验进一步证实。92646
毕业论文关键词：AC/Pt，AC/Pt/PAN，电化学性能
Abstract：Platinum nanoparticles were deposited into the structure of activated carbon by in situ reductive reaction between chloroplatinic acid and ethylene glycol, and the activated carbon/platinum material (AC/Pt) was obtained。 Then the platinum nanoparticles in the structure of AC acted as the catalyst to catalyze aniline electroless polymerization to form active carbon/platinum/polyaniline composite (AC/Pt/PAN) for supercapacitor electrode material。 The products were characterized by FT-IR and SEM techniques。 The results showed that Platinum exists in the porosity of activated carbon and polyaniline was successfully attached to the porosities and surface of activated carbon。 The effect of the different dosage of chloroplatinic acid and the different concentration of aniline on the electrochemical performance of the electrode materials were investigated by cyclic voltammetry, constant current charge and discharge and AC impedance test。 Measurements showed that in the range of 0。0 ~ 1。0V and in 1 mol • L-1 H2SO4 electrolyte, the electrode material exhibited different capacitance performance along with the dosage of chloroplatinic acid and the concentration of aniline。 When the current density was 1 A / g, the activated carbon was 0。4 g, the amount of chloroplatinic acid was 3 mL and the aniline concentration was 15% , the AC/Pt/PAN composites showed the best capacitance performance。 Its specific capacity was up to 160。0 F / g, which is larger than the AC and other composite electrode materials。 At the same time, as the aniline concentration increased from 5% to 15%, the performance of the composite material continued to improve, presuming that the optimum concentration of polyaniline was 15% or more。 Further experiments should be conducted to confirm this view。
Keywords：AC/Pt, AC/Pt/PAN, Electrochemical performance
目 录
1 前言 1
1。1 超级电容器简介 1
1。2 电极材料的简介 1
1。3电极材料的复合 2
2。 实验部分 2
2。1 实验材料及设备 2
2。1。1 实验材料 3
2。1。2 实验设备 3
2。2 电极材料的制备 3
2。2。1 活性炭的处理 3
2。2。2 苯胺的处理 活性炭/铂/聚苯胺复合材料制备和电容性能研究:http://www.youerw.com/huaxue/lunwen_200346.html