Polypyrrole patterns formed during electropolymerization of pyrrole at gold surfaces in potassium chloride electrolyte solutions

Electropolymerization of pyrrole in the aqueous electrolyte solutions of po tassium chloride was investigated by means of chronoamperometric, in situ e lectrochemical quartz crystal oscillator and optical microscopic methods. p olypyrrole patterns of one dot, two dots and three dots of triangle were su ccessfully formed at gold electrode surfaces in aqueous solutions of pyrrol e and were confirmed ex situ by optical microscopy. Further development of the technique and possible applications are discussed.