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中文摘要: 采用界面聚合法通过不同质子酸掺杂分别制备了平均直径约为50，62，95 nm的纤维聚苯胺。通过傅里叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)、透射电镜(TEM)对其化学组成和微观形貌进行了表征，采用循环伏安、恒流充放电和交流阻抗研究了不同质子酸掺杂纤维聚苯胺的超级电容器电容行为，并利用X射线衍射(XRD)、氮气吸脱附及X射线光电子能谱(XPS)等方法对纤维聚苯胺的微观结构进行了深入研究。结果表明：高氯酸(HClO4)掺杂制备的聚苯胺在0.5 A/g电流密度下的比容量可以达到397 F/g，高于盐酸(HCl, 334 F/g)和樟脑磺酸(HCSA, 383 F/g)掺杂聚苯胺的测试结果，纤维的电化学性能主要受其规整度、孔隙率及掺杂度的影响。
Abstract:Polyaniline (PANI) nanofibers with average diameter of about 50, 62 nm and 95 nm were respectively synthesized by interfacial polymerization method in the presence of different kinds of doped acids. The chemical composition and micromorphology of PANI nanofibers were characterized by FT IR, SEM and TEM. The electrochemical supercapacitor behaviors of PANI nanofibers doped with different proton acids were examined through Cyclic Voltammetry (CV), galvanostatic charge discharge and Electrochemical Impedance Spectroscopy (EIS). And the microstructure of PANI nanofibers was further stu died by means of XRD, nitrogen adsorption desorption isotherms and XPS. Results show that the specific capacitance of PANI doped with perchloric acid (HClO4) is up to 397 F/g at the current density of 0.5 A/g, which is much higher in comparison with those doped with hydrochloric acid (HCl, 334 F/g) and camphorsulfonic acid (HCSA, 383 F/g). The electrochemical properties of PANI nanofibers are mainly affected by its regularity, porosity and doping degree.
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基金项目:国家自然科学基金(21203116)
| 作者 | 单位 | |
| 张利锋 | 陕西科技大学材料科学与工程学院，西安 710021 | zhanglifeng@sust.edu.cn |
| 张金振 | 陕西科技大学材料科学与工程学院，西安 710022 | |
| 刘毅 | 陕西科技大学材料科学与工程学院，西安 710023 | |
| 郭守武 | 陕西科技大学材料科学与工程学院，西安 710024 |
引用本文：
张利锋,张金振,刘毅,郭守武.不同掺杂酸对纤维聚苯胺电化学性能的影响[J].功能高分子学报,2015,28(1):.
ZHANG Li feng,ZHANG Jin zhen,LIU Yi,GUO Shou wu.Effects of Different Acids Dopant on Electrochemical Properties of Polyaniline Nanofibers[J].Journal of Functional Polymers,2015,28(1):.
张利锋,张金振,刘毅,郭守武.不同掺杂酸对纤维聚苯胺电化学性能的影响[J].功能高分子学报,2015,28(1):.
ZHANG Li feng,ZHANG Jin zhen,LIU Yi,GUO Shou wu.Effects of Different Acids Dopant on Electrochemical Properties of Polyaniline Nanofibers[J].Journal of Functional Polymers,2015,28(1):.
