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Open AccessArticle

Facile Synthesis of Polyaniline Nanotubes with Square Capillary Using Urea as Template

by Shuhua Pang 1,†, Weiliang Chen 1,†, Zhewei Yang 1,†, Zheng Liu 1,2,†, Xin Fan 1,* and Dong Fang 3,*
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials of Ministry of Education, College of Materials Science & Engineering, Guilin University of Technology, Guilin 541004, China
BengBu Center of Product Quality Supervising and Inspection, BengBu 233000, China
Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan 430700, China
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Do-Hoon Hwang
Polymers 2017, 9(10), 510;
Received: 27 September 2017 / Revised: 10 October 2017 / Accepted: 12 October 2017 / Published: 14 October 2017
Polyaniline nanotubes were successfully synthesized by a facile in situ chemical oxidative polymerization method using urea as soft template. When the urea/aniline molar ratio is 3:1, the as-prepared nanotubular polyaniline (PANI-3) shows regular and uniform square capillaries, which provides a high electrode/electrolyte contact, easy ion diffusion and enhanced electroactive regions during the electrochemical process, leading to weak internal resistance and improved electrochemical performance. The PANI-3 sample exhibits a high specific capacitance of 405 F/g at current density of 0.2 A/g, and PANI only has a specific capacitance of 263 F/g. At current density of 1 A/g, the capacitance of PANI-3 is still 263 F/g (64.9% of the capacitance at 0.2 A/g). Such a PANI-3 nanotube, with regular and uniform capillary, is a promising electrode material for high-performance supercapacitors. View Full-Text
Keywords: polyaniline; nanotube; urea; template; morphology; electrochemical performance polyaniline; nanotube; urea; template; morphology; electrochemical performance
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MDPI and ACS Style

Pang, S.; Chen, W.; Yang, Z.; Liu, Z.; Fan, X.; Fang, D. Facile Synthesis of Polyaniline Nanotubes with Square Capillary Using Urea as Template. Polymers 2017, 9, 510.

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