An electrochemical study of the action of a poly(vinylpyridine) derivative as inhibitor for corrosion of iron in 1M H2SO4

被引：36

作者：

Abed, Y

Arrar, Z

Hammouti, B ^{[1
]}

Aouniti, A

Kertit, S

Mansri, A

机构：

[1] Fac Sci, Lab Chim Eaux & Corros, Oujda, Morocco

[2] Univ Tlemcen, USTL, Inst Chim, Tilimsen, Algeria

[3] Ecole Normale Super Takaddoum, Lab Physicochim Mat, AUPELF, UREF,LAF 502, Rabat, Morocco

来源：

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1999年 / 96卷 / 08期

关键词：

iron; poly(4-vinylpyridine poly-3-oxide ethylene); inhibition; corrosion; sulphuric acid;

D O I：

10.1051/jcp:1999102

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The influence of the addition of Poly(4-vinylpyridine poly-3-oxide ethylene) (P4VPP3OE) on the corrosion of Armco iron in molar sulphuric acid has been investigated by potentiodynamic and polarisation resistance measurements. The polymer studied reduces the corrosion current densities. The inhibition efficiency (E%) of P4VPP3OE increases with its concentration and attains 99% at 3.33 10(-5) M. E% obtained from cathodic Tafel plots and polarisation resistance methods were in good agreement. The inhibitor was adsorbed on the iron surface according to the Frumkin adsorption isotherm model. Polarisation measurements show also that the compound acts as a cathodic inhibitor.

引用

页码：1347 / 1355

页数：9

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