Accession Number : ADA258328


Title :   Impedance and Voltammetric Studies of Electrogenerated Polyaniline Conducting Films


Descriptive Note : Technical rept.


Corporate Author : NORTHERN ILLINOIS UNIV DE KALB DEPT OF CHEMISTRY


Personal Author(s) : Sandi, Giselle ; Vanysek, Petr


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258328.pdf


Report Date : 14 Dec 1992


Pagination or Media Count : 39


Abstract : Polyaniline films were electrochemically synthesized from three acidic media; sulfuric, hydrochloric and perchloric acids. Cyclic voltammetry was used in the electrosynthesis and the effects of voltammetric parameters on the properties of the films were investigated. The main tool of film characterization was impedance spectroscopy. Semiautomated plotting of three-dimensional Argand diagrams with potential parameter was used for synoptic view of the system and nonlinear least square data fitting was used for rigorous treatment. Charge storage capacity, resistance and changes in constant phase element parameters are analyzed in relation to the use of three acidic media.


Descriptors :   *IMPEDANCE , *VOLTAMMETRY , *POLYANILINES , *CONDUCTIVE POLYMERS , CONDUCTIVITY , SPECTROSCOPY , SYNTHESIS , TOOLS , PARAMETERS , RESISTANCE , FILMS , ELECTROCHEMISTRY , PERCHLORIC ACID , FITTINGS , SULFURIC ACID , ACIDS , HYDROCHLORIC ACID , DIAGRAMS , PLOTTING , PHASE , SURFACES , THREE DIMENSIONAL , CONSTANTS , LEAST SQUARES METHOD , MEDIA , STORAGE


Subject Categories : Physical Chemistry
      Polymer Chemistry
      Electricity and Magnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE