Preparation of hierarchical polyaniline nanotubes based on self-assembly and its electrochemical capacitance

被引:35
作者
Ran, Fen [1 ,2 ]
Tan, Yong-tao [1 ,2 ]
Liu, Ji [1 ,2 ]
Zhao, Lei [1 ,2 ]
Kong, Ling-bin [1 ,2 ]
Luo, Yong-chun [1 ,2 ]
Kang, Long [1 ,2 ]
机构
[1] Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
[2] Lanzhou Univ Technol, Key Lab Nonferrous Met Alloys & Proc, Minist Educ, Lanzhou 730050, Peoples R China
基金
中国国家自然科学基金;
关键词
conducting polymer; self-assembly; electrochemical properties; supercapacitors; REDOX SUPERCAPACITOR; CARBON NANOTUBES; NANOFIBERS; POLYMERIZATION; COMPOSITE; PERFORMANCE; MEMBRANE; NANOMATERIALS; POLYPYRROLE; SURFACTANT;
D O I
10.1002/pat.2048
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This article reports the preparation and self-assembly of polyaniline (PANI) nanotubes, which were chemically synthesized by using in situ doping polymerization in the presence of ammonium persulfate (APS; (NH4)S2O8) as the oxidant without the use of an external template. The synthesized hierarchically nanotubes with a shape of a single nanotube with a length of 0.6 to 0.8?mu m and an average with of 100?nm assembled from nanoparticles. The effects of the [salicylic acid]/[aniline] ratio on the size and capacitance of PANI nanotubes were studied. The specific capacitance behavior of the PANI nanotubes was also investigated by using cyclic voltammogram and galvanostatic chargedischarge tests. A maximum discharge-specific capacitance of 422.5?F/g could be achieved, suggesting its potential application in electrode material for electrochemical capacitors. Copyright (c) 2011 John Wiley & Sons, Ltd.
引用
收藏
页码:1297 / 1301
页数:5
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