A homologous series of ferrocenyl surfactants, Fc(CH2)(n)N(CH3)(3)(+) where n = 1, 6, or 11, have been intercalated into thin clay films in an effort to design novel electroactive nanocomposites. Cyclic voltammetry of clay-modified electrodes has been used to investigate the electrochemical properties of the surfactants. The rate of intercalation into the clay and steady-state currents were found to be highly dependent on chain length. Of the three, the compound containing one carbon in the chain is the only molecule to be effectively modeled by an ion-exchange mechanism, implying that the ferrocene resides close to the surface of the clay. The electrochemistry of the two longer chain compounds is markedly different from the one with a single carbon in the chain. The six- and eleven-carbon chain compounds have been shown to generate a larger capacitive current in the clay and represent possible charge-storage devices.