R. Cervini et al., PHYSICAL-PROPERTIES OF POLYPYRROLE FILMS CONTAINING DICYANOAURATE(I) ANIONS, PPY-AU(CN)(2), Journal of materials chemistry, 4(1), 1994, pp. 87-97
Polypyrrole dicyanoaurate, PPy-Au(CN)(2), has been synthesized in thin
-film form by electrochemical oxidation of pyrrole in aqueous or non-a
queous media. The film samples have been characterized by elemental an
alysis, IR spectroscopy and X-ray photoelectron spectroscopy (XPS). Th
e room-temperature conductivity of one of the films (303 S cm(-1)) is
one of the highest reported to date for any PPy-anion system. X-Ray di
ffraction studies show that the preferred orientation of the PPy chain
s in PPy-Au(CN)(2) is parallel to the anode surface. The films show ex
cellent stability in air at room temperature, their conductivity decre
asing by less than 2% over 50 days. The electrochemical properties of
PPy-Au(CN)(2)-coated platinum electrodes have been probed in detail us
ing cyclic voltammetric (CV) methods.