A Photoelectrochemical Investigation of A.C.Modulated Passive Films on 304 Stainless Steel in Weak-alkaline and Neutral Solution

Authors

Tianbao Du, State Key Laboratory for Corrosion and Protection,Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang 110015;
Chunan Cao, State Key Laboratory for Corrosion and Protection,Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang 110015;
Jiakang Yu, State Key Laboratory for Corrosion and Protection,Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang 110015;
Haichao Lin, State Key Laboratory for Corrosion and Protection,Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang 110015;

Abstract

A photoelectrochemical investigation has been carried out on AISI 304 stainlesssteeI AV modulated passive film in 0.1mol/L Na_2B_4O_7 and 0.5 mol/L Na_2SO_4 solution.Photocurrentcurve depends on the potential、passive condition and testing solutions. The results of the measurementsindicate that the photoresponse is determined by the defects in the electronic structure of the films whenthe defects lead to localized states in the bandgap region. It is concluded that the passive film on AISI304 stainless steel is in a highly disordered amorphous state.

Keywords

A.V. modulation, Photocurrent, Photoelectrochemistry, Stainless steel

DOI Link

https://doi.org/10.61558/2993-074X.1311

Publication Date

1995-11-28

Online Available Date

1995-11-28

Revised Date

1995-11-28

Received Date

1995-11-28

Recommended Citation

Tianbao Du, Chunan Cao, Jiakang Yu, Haichao Lin. A Photoelectrochemical Investigation of A.C.Modulated Passive Films on 304 Stainless Steel in Weak-alkaline and Neutral Solution[J]. Journal of Electrochemistry, 1995 , 1(4): 402-407.
DOI: 10.61558/2993-074X.1311
Available at: https://jelectrochem.xmu.edu.cn/journal/vol1/iss4/4