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Characterization of poly(indole‐5‐carboxylic acid) in aqueous rechargeable cells
Author(s) -
Sivakkumar S. R.,
Angulakshmi N.,
Saraswathi R.
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22202
Subject(s) - cyclic voltammetry , acetonitrile , aqueous solution , electrolyte , carboxylic acid , anode , scanning electron microscope , polymer chemistry , cathode , chemistry , conductive polymer , polymer , materials science , electrochemistry , nuclear chemistry , organic chemistry , electrode , composite material
Self‐doped poly(indole‐5‐carboxylic acid) (P5CO 2 H) is electrodeposited from acetonitrile containing 0.1 M LiClO 4 as electrolyte and characterized by UV–vis, IR, cyclic voltammetry, and scanning electron microscopy techniques. The polymer is evaluated as a cathode active material together with a Zn anode in rechargeable cells containing 1 M ZnSO 4 at pH 5. The cell shows an open circuit voltage of 1.36 V and a specific capacity of 67 Ah kg −1 . The ac impedance study shows a predominant diffusion mechanism. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 917–922, 2005