단일공정 양극산화를 이용한 WO3가 복합된 304 스테인레스 강 산화 피막 제조

초록

Anodization of Fe and Fe alloys is one of the most promising techniques to obtain iron oxide films applying to the various electrochemical devices due to their electrochemical catalytic properties. In this study, we investigate on the preparation of anodic iron oxide composite incorporated with WO3 through a single-step anodization of stainless steel type-304 (STS304) as a substrate. The effects of applied voltage and tungsten precursor on the structural characteristics of iron oxide composite with different amount of incorporated WO3 were observed. It is demonstrated that when the voltage of 60 V applied with 20 mM of Na2WO4 as a precursor, anodic iron oxide composite with a large pore diameter and a thick oxide length in which WO3 is uniformly incorporated is obtained.

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