Electrochemical investigation of ascorbic acid adsorption on low-carbon steel in 0.50 M Na2SO4, solutions

被引:39
作者
Gonçalves, RS
Mello, LD
机构
[1] Univ Fed Rio Grande Sul, Inst Quim, Dept Fisicoquim, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Santa Maria, Dept Quim, BR-97119900 Santa Maria, RS, Brazil
关键词
ascorbic acid; low-carbon steel; corrosion inhibitor; photo-effect;
D O I
10.1016/S0010-938X(00)00102-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The influence of the presence of ascorbic acid on the electrochemical behavior of low-carbon steel in 0.50 M Na2SO4 aqueous solutions is described. The data confirm the inhibitory effect of ascorbic acid on the corrosion processes of this metal. It was observed that the incidence of monochromatic light may affect the electrochemical behavior of the electrode in this medium as well as the interaction between the electrode and ascorbic acid. The action of light is attributed to the complex interaction of several photosensitive phenomena. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:457 / 470
页数:14
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