Chemical synthesis of de–doped polyaniline for high performance aqueous supercapacitive material

doi:10.1149/2.0521816jes

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	Chemical synthesis of de–doped polyaniline for high performance aqueous supercapacitive material
	Xu, Hui 1; Wu, Jun-Xia 1,2; Li, Qi 1; Chen, Yong 1; Tang, Jing 1; Fan, Xin 1
刊名	Journal of the Electrochemical Society
	2018
卷号	165 期号:16 页码:A3903-A3909
关键词	Ammonia Ammonium hydroxide Capacitance Electrolytes Electron transport properties Semiconductor doping Sodium bicarbonate Sodium hydroxide Acidic electrolytes Doped polyaniline Electrochemical capacitor Electrochemical performance Electron transport Hole conduction Impurity level Specific capacitance
ISSN号	00134651
DOI	10.1149/2.0521816jes
英文摘要	De–doped polyaniline were prepared by processing the doped polyaniline with three different aqueous alkali: NH4OH, NaOH and NaHCO3. Compared with the doped polyaniline, de–doped polyaniline shows better electrochemical capacitor performance, lower resistance and better stability in 0.5 M H2SO4 aqueous solution. Especially, de–doped polyaniline treated by NH3·H2O exhibits the specific capacitance of 839 F g−1 at a current density of 3 mA cm−2, which is about 2–fold higher than that of doped polyaniline. The behaviors of the capacitance of de–doped polyaniline can be deeply investigated and explained by the organic semiconductor band theory. De–doped polyaniline is expected to show satisfying performance due to the formation of impurity levels that can reduce the gap width of the forbidden band, and holes formed in the valence band generate the hole conduction during the re–doping of the de–doped polyaniline in acidic electrolyte, all of which can increase electron transport capacity. The study reveals that the electrochemical performances of polyaniline, particularly capacitance, can be improved by a simple de–doping process. © 2018 The Electrochemical Society.
WOS研究方向	Electrochemistry ; Materials Science
语种	英语
出版者	Electrochemical Society Inc.
WOS记录号	WOS:000453346800003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114734]
专题	石油化工学院
作者单位	1.College of Perochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Baiyin Institute of Mining and Metallurgy, Baiyin; 730900, China
推荐引用方式 GB/T 7714	Xu, Hui,Wu, Jun-Xia,Li, Qi,et al. Chemical synthesis of de–doped polyaniline for high performance aqueous supercapacitive material[J]. Journal of the Electrochemical Society,2018,165(16):A3903-A3909.
APA	Xu, Hui,Wu, Jun-Xia,Li, Qi,Chen, Yong,Tang, Jing,&Fan, Xin.(2018).Chemical synthesis of de–doped polyaniline for high performance aqueous supercapacitive material.Journal of the Electrochemical Society,165(16),A3903-A3909.
MLA	Xu, Hui,et al."Chemical synthesis of de–doped polyaniline for high performance aqueous supercapacitive material".Journal of the Electrochemical Society 165.16(2018):A3903-A3909.