Electrochemical Performances of SDS-Modified PPy as Supercapacitor Electrode
Yong Chen, Guiying Kang
Available Online January 2016.
- https://doi.org/10.2991/ifeea-15.2016.58How to use a DOI?
- supercapacitor; polypyrrole; sodium dodecyl sulfonate.
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - 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 - https://doi.org/10.2991/ifeea-15.2016.58 ID - Chen2016/01 ER -