N.D.Ivanova, S.V.Ivanov*
Received June 30, 1999
Electrochemical reduction and oxidation of metal ions accompanied
by the film formation at the electrode-electrolyte boundary is discussed.
The formation of a film exhibiting a mixed conduction type and consisting
of oxide-hydroxide compounds of the metal means that a new electrode-film-electrolyte
system is present. The metal-film and film-electrolyte interfaces
are electrodes where Faraday processes occur: incomplete reduction
or oxidation of solution ions occurs on the film from the electrolyte
side while further reduction or oxidation of the solid phase to the
metal or oxide-hydroxide compounds takes place on the electrode side.