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Cyclic Voltammetric and Morphological Studies of Polyaniline
Author(s) -
Yang SzeMing,
Lin TsairSheng
Publication year - 1988
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198800052
Subject(s) - polyaniline , chemistry , cyclic voltammetry , electrochemistry , anode , inorganic chemistry , morphology (biology) , electrode , organic chemistry , polymer , biology , polymerization , genetics
Cyclic voltammograms and morphology of polyaniline were studied under various synthetic conditions and in various protonic acid media. The effect of protonic acid is not remarkable. The cyclic voltammogram and morphology depend on the synthetic conditions. The anodic peak potential at 0.14 V versus SCE in the cyclic voltammogram is pH independent. The anodic peak potential at 0.7 V versus SCE (pH=1) is pH dependent. By comparing the range of pH and oxidation potential of the conductive form, we propose that the conductive species which exists in the potential range between the first and the second peak in cyclic voltammogram is the radical cation.