Electrolytic deposition of niobium oxide films

Cathodic electrolytic deposition of Nb2O5 films on platinum substrates was performed via hydrolysis by use of an electrogenerated base of the NbCl5 salt dissolved in water in the presence of hydrogen peroxide. The deposits were characterized by XRD, TG/DTA, SEM and Auger methods. The crystallization behavior of the deposits and precipitated gels was compared. A possible mechanism of electrodeposition is discussed.