PHOTOELECTROCHEMICAL STUDY OF PASSIVE FILMS ON STAINLESS-STEEL IN NEUTRAL SOLUTIONS

被引：54

作者：

DIPAOLA, A ^{[1
]}

SHUKLA, D ^{[1
]}

STIMMING, U ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT CHEM ENGN & APPL CHEM,ELECTROCHEM LAB,NEW YORK,NY 10027

来源：

ELECTROCHIMICA ACTA | 1991年 / 36卷 / 02期

关键词：

PHOTOELECTROCHEMISTRY; PHOTOELECTROCHEMICAL IMAGING; PASSIVITY; STAINLESS STEEL; DISORDER;

D O I：

10.1016/0013-4686(91)85260-E

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Passive films formed on AISI 304 stainless steel in neutral solutions are studied using photoelectrochemical techniques. Photocurrents were investigated as a function of the wavelength of the incident light, the electrode potential and the time. The results of the measurements together with capacity measurements indicate that the passive film on AISI 304 shows characteristics of a highly doped amorphous or highly disordered n-type semiconductor. The potential dependence of the optical gap values and of the photocurrent transients can be interpreted assuming that the passive film is an iron-chromium oxide solid solution.

引用

页码：345 / 351

页数：7

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