Our previous study [7] has shown that the surface of stainless
steel 316 L can be modified in a way ensuring a large
surface area (needed for catalytic applications), where nickel
oxides are predominant. The purpose of the present work
was to modify the stainless steel 316 L surface by preliminary
roughening followed by formation of chromium oxides
which are the most stable passive films on stainless steels
[8,9]. Both studies are called forth by the attempts at subsequent
electrochemical deposition of zirconia films [10],
which are promising catalyst supports of transition metal-
(Co, Cu, Fe, etc.) based catalyst used in exhaust-gas purify-