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 th e 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 wa s compared. A possible mechanism of electrodeposition is discussed. (C ) 1998 Elsevier Science B.V. All rights reserved.