NDLI: Charge storage performance of doped carbons prepared from polyaniline for supercapacitors

Content Provider	Springer Nature Link
Author	Li, Limin Liu, Enhui Shen, Haijie Yang, Yanjing Huang, Zhengzheng Xiang, Xiaoxia Tian, Yingying
Copyright Year	2010
Abstract	Doped carbons have been prepared from polyaniline for supercapacitors. The morphology of samples has been characterized by scanning electron microscope, the surface chemical composition of samples has been investigated by X-ray photoelectron spectroscopy, and the surface area of samples has been calculated by Brunauer–Emmett–Teller measurement. Electrochemical properties have been studied by cyclic voltammograms, galvanostatic charge/discharge, and electrochemical impedance spectroscopy measurements in 6 mol L−1 potassium hydroxide. Their charge storage performance has been evaluated, and the effect of nitrogen atomic functionalities on the pseudocapacitive property has been studied. The experimental results have proved two mechanisms of energy storage in doped carbons: double-layer formation and pseudocapacitance. The overall specific capacitance of doped unactivated carbon is mainly attributed to pseudocapacitance, that of doped activated carbon prepared by physical activation is attributed to the synergic effect of pseudocapacitance and double-layer capacitance, but that of doped activated carbon prepared by chemical activation is mainly attributed to double-layer capacitance.
Starting Page	175
Ending Page	182
Page Count	8
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	15
Issue Number	1
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-05-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Doped activated carbon Nitrogen functionalities X-ray photoelectron spectroscopy Electrochemical properties Characterization and Evaluation of Materials Analytical Chemistry Industrial Chemistry/Chemical Engineering Physical Chemistry Electrical Engineering Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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