期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 65, 期 3, 页码 329-338出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0254-0584(00)00254-6
关键词
iridium-doped polyaniline (PAN); electrochemical (EC) capacitor; cyclic voltammetry (CV); chronopotentiometry
The electrochemical polymerization of aniline via cyclic voltammetry (CV) was performed in 1 M HCl and 0.2 M aniline solutions with various concentrations of IrCl3. xH(2)O. The rate of polymerization strongly depends on the concentration of IrCl3. xH(2)O and reaches a maximum at 0.2 mM IrCl3. xH(2)O on the basis of the anodic peak current at ca. 280 mV (peak A(1)). The electrochemical properties of Ir-doped polyaniline (PAN) films for the application of electrochemical (EC) capacitors were characterized by their i-E and chronopotentiometric responses in 0.5 M H2SO4. The effect of iridium oxide on the chemical environments of PAN was demonstrated by X-ray photoelectron spectroscopy (XPS). Morphologies and crystalline structures of these Ir-doped PAN films are, respectively, examined by scanning electron microscopic (SEM) photographs and X-ray diffraction (XRD) patterns. (C) 2000 Elsevier Science S.A. All rights reserved.
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