A new generation of electrochemical supercapacitors based on layer-by-layer polymer films

JOURNAL OF POWER SOURCES

卷:303

Article

Christinelli, Wania Ap.¹  Goncalves, Roger¹  Pereira, Ernesto C.¹ 

[1] Univ Fed Sao Carlos, Dept Chem, CP 676, BR-13560970 Sao Carlos, SP, Brazil

关键词: Conducting polymers;    Supercapacitors;    Layer-by-layer films;    Self-doping;   

DOI  :  10.1016/j.jpowsour.2015.10.077

来源: Elsevier

【 摘 要 】

Here we report supercapacitors fabricated with the layer-by-layer (LBL) technique using two polymers, namely poly(o-methoxyaniline) (POMA) and poly(3-thiophene acetic acid) (PTAA). The electrochemical performances of POMA/PTAA supercapacitors were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The results were compared with POMA casting film. The specific capacitance of LBL films increases almost linearly with a number of bilayers which were not observed for POMA casting films. The results of this investigation demonstrate that the self-doping effect between POMA and PTAA can change the properties on films and can be successfully used as a supercapacitor technology. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free