Investigation of Corrosion Inhibition Properties of Caffeine on Nickel by Electrochemical Techniques

被引：0

作者：

Ebadi, M. ^{[1
,2
]}

Basirun, W. J. ^{[1
]}

Leng, S. Y. ^{[1
,3
]}

Mahmoudian, M. R. ^{[1
,4
]}

机构：

[1] Univ Malaya, Fac Sci, Dept Chem, Kuala Lumpur 50603, Malaysia

[2] Islamic Azad Univ, Gorgan Branch, Fac Sci, Dept Chem, Gorgan, Iran

[3] Jalan Univ, Univ Tunku Abdul Rahman, Fac Sci, Dept Chem Sci, Kampar 31900, Perak, Malaysia

[4] Islamic Azad Univ, Masjed Soleiman Branch, Dept Chem, Masjed Soleiman, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 09期

关键词：

Caffeine; electro-corrosion techniques; inhibitor efficiency; nickel; COPPER CORROSION; MILD-STEEL; ALUMINUM CORROSION; ANODIC-DISSOLUTION; MAGNETIC-FIELD; ACID SOLUTIONS; PART I; DERIVATIVES; MEDIA; ELECTRODEPOSITION;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The corrosion behaviour of Ni surface in the absence and presence of caffeine in 3.5% NaCl solution is studied using electrochemical impedance spectroscopy, open circuit potential, electrochemical noise analysis and linear scan voltammetry. The corrosion rate of the nickel surface decreases and the inhibition efficiency increases from 93.7% to 96.8% with the increase of caffeine in the corrosive solution. The FESEM images show that the caffeine addition in the corrosive solution reduces the formation of pits and cavities on the nickel surface.

引用

页码：8052 / 8063

页数：12

共 34 条

[1] Adsorption and inhibitive properties of some new Mannich bases of Isatin derivatives on corrosion of mild steel in acidic media [J].