Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (53권5호 257-264)

Preparation of Anodic Iron Oxide Composite Incorporated with WO3 on the Stainless Steel Type-304 Substrate Through a Single-step Anodization

단일공정 양극산화를 이용한 WO3가 복합된 304 스테인레스 강 산화 피막 제조

김문수;이재원;이기영;김용태;최진섭;
Kim, Moonsu;Lee, Jaewon;Lee, Kiyoung;Kim, Yong-Tae;Choi, Jinsub;

인하대학교 화학공학과;경북대학교 미래과학기술융합학과;
Department of Chemistry and Chemical Engineering, Inha University;Department of Advanced Science and Technology, Kyungpook National University;

DOI : 10.5695/JKISE.2020.53.5.257

Abstract

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.

Keywords

Stainless steel;Tungsten oxide;Single-step anodization;Composite film;