Electrochemical Performances of SDS-Modified PPy as Supercapacitor Electrode

DOI

10.2991/ifeea-15.2016.58How to use a DOI?

Keywords

supercapacitor; polypyrrole; sodium dodecyl sulfonate.

Abstract

Conducting polypyrrole (PPy) is an attractive class of electrode material to be used in supercapacitor. However, the main chain of PPy prone to rupture in the process of charging and discharging, which results in premature attenuation and decreasing of specific capacitance. The SDS-modified PPy is prepared by the chemical oxidation method for improving specific capacitance of PPy and synthesis conditions are optimized through single factor way. Meanwhile, the optimal conditions are obtained, including the temperature of polymerization (0 ), the time of polymerization (4h), the molar ratio of Py/SDS (nPy:nSDS=4:1) and APS/Py (nAPS:nPy=1.3:1), and the concentration of electrolyte (0.5mol L-1 Na2SO4). A three-electrode cell system is used to evaluate the electrochemical performances of PPy/SDS by cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance at room temperature. The results showed that PPy/SDS has higher specific capacitance than that of pure PPy. Besides, the capacity retention rate of PPy/SDS is higher than that of PPy.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yong Chen
AU  - Guiying Kang
PY  - 2016/01
DA  - 2016/01
TI  - Electrochemical Performances of SDS-Modified PPy as Supercapacitor Electrode
BT  - Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)
PB  - Atlantis Press
SP  - 277
EP  - 281
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeea-15.2016.58
DO  - 10.2991/ifeea-15.2016.58
ID  - Chen2016/01
ER  -