Application of polyaniline to galvanic anodic protection on stainless steel in H2SO4 solutions

被引：60

作者：

Zhong, Lian

Xiao, Shuhu

Hu, Jie

Zhu, Hua

Gan, Fuxing ^{[1
]}

机构：

[1] Wuhan Univ, Sch Resource & Environm Sci, Dept Environm Engn, Wuhan 430072, Peoples R China

[2] State Key Lab Corros & Protect Met, Shenyang 110015, Peoples R China

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

polyaniline; stainless steel; acid solution; galvanic anodic protection;

D O I：

10.1016/j.corsci.2006.04.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A stand-alone polyaniline (PANI) film electrode was made and then applied to protect 1Cr13 stainless steel (a type of stainless steel typically used in China, 0-15% C, 13% Cr) from corrosion in highly acidic solution, up to 5 M H2SO4. The stand-alone PANI electrode and 1Cr13 were coupled to study their galvanic interactions. PANI is a cathode while 1Cr13 is an anodic. The results indicate that PANI with a certain area can quickly passivate the stainless steel and effectively maintain the steady passive state for a long period of time. This specific method of PANI preventing 1Cr13 from corrosion is called galvanic anodic protection (GAP). Moreover, the efficiency, mechanism, and security of GAP were discussed. The results demonstrate that the stand-alone PANI electrode may have a potential application to galvanic anodic protection on stainless steel in highly corrosive H2SO4 solutions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3960 / 3968

页数：9

共 24 条

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