Electropolyrnerization of poly(3-methylthiophene) in pyrrolidinium-based ionic liquids for hybrid supercapacitors

被引:40
作者
Biso, Maurizio [1 ]
Mastragostino, Marina [1 ]
Montanino, Maria [2 ]
Passerini, Stefano [2 ]
Soavia, Francesca [1 ]
机构
[1] Univ Bologna, Dept Met Sci Electrochem & Chem Tech, I-40127 Bologna, Italy
[2] Ctr Ric Casaccia, TER Dept, Agcy New Technol Energy & Environm ENEA, I-00123 Rome, Italy
关键词
poly(3-methylthiophene) (pMeT); pyrrolidinium-based ionic liquid; electropolymerization; hybrid supercapacitor; specific capacitance;
D O I
10.1016/j.electacta.2008.06.008
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The ionic liquids (ILs) N-butyl-N-methyl-pyrrolidinium trifluoromethanesulfonate (PYR14Tf) and N-methyl-N-propyl-pyrrolidinium bis(fluorosulfonyl)imide (PYR13FSI) are investigated as electropolymerization media for poly(3-methylthiophene) (pMeT) in view of their use in carbon/IL/pMeT hybrid supercapacitors. Data on the viscosity, solvent polarity, conductivity and electrochemical stability of PYR14Tf and PYR13FSI as well as the effect of their properties on the electropolymerization and electrochemical performance of pMeT, which features > 200 Fg(-1) at 60 degrees C when prepared and tested in such ILs, are reported and discussed: the results of the electrochemical characterization in N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide of the so-obtained pMeT are also given, for comparison. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:7967 / 7971
页数:5
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