Nano-composite of polypyrrole/modified mesoporous carbon for electrochemical capacitor application

作者：Zhang, Jing; Kong, Ling-Bin^*; Cai, Jian-Jun; Luo, Yong-Chun; Kang, Long

来源：Electrochimica Acta, 2010, 55(27): 8067-8073.

DOI：10.1016/j.electacta.2010.01.052

• Modified mesoporous carbon
• Polypyrrole
• Thin layer
• In situ chemical polymerization
• Electrochemical properties

Nano-thin polypyrrole (PPy) layers were coated on chemically modified ordered mesoporous carbon (m-CMK-3) by an in situ chemical polymerization Structural and morphological characterizations of m-CMK-3/PPy composites were carried out using field emission scanning electron microscopy Pseudo-capacitive behavior of the deposited PPy layers on m-CMK-3 was investigated by cyclic voltammetry galvanostatic charge-discharge and electrochemical impedance spectroscopy As results of this study the thin layer of PPy in the composite electrode was effective to obtain fully reversible and very fast Faradaic reaction A maximum discharge capacity of 427 F g(-1) or 487 F g(-1) after correcting for weight percent of PPy phase at the current density of 5 mA cm(-2) could be achieved in a ha

• 出版日期2010-11-30
• 单位兰州理工大学