Inhibition Effect of Azadirachta indica, a Natural Product, on the Corrosion of Zinc in Hydrochloric Acid Solution

被引：10

作者：

Prabhu, R. A. ^{[1
]}

Venkatesha, T. V. ^{[1
]}

Praveen, B. M. ^{[2
]}

Chandrappa, K. G. ^{[3
]}

Abd Hamid, S. B. ^{[3
]}

机构：

[1] Srinivas Sch Engn, Dept Chem, Mukka 575021, Karnataka, India

[2] Kuvempu Univ, Dept PG Studies & Res Chem, Shankarghatta 577451, India

[3] Univ Malaya, Nanotechnol & Catalysis Res Ctr NANOCAT, Kuala Lumpur 53100, Malaysia

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2014年 / 67卷 / 05期

关键词：

Zinc corrosion; Inhibitor; Azadirachta indica leaves extract; SEM; SURFACE; LAYERS;

D O I：

10.1007/s12666-014-0390-y

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The corrosion behavior of zinc in 0.2 M hydrochloric acid solution by Azadirachta indica (AI-Neem) was investigated using mass loss, electrochemical polarization and impedance methods. Inhibition efficiency depends on the concentration of AI-Neem and it reaches maximum value at 1,000 ppm. The shape of polarization profile indicated that AI-Neem is a mixed type inhibitor with predominant cathodic effect. Adsorption of AI-Neem on the zinc surface follows Temkin adsorption isotherm. The surface morphology of zinc was studied by using scanning electron microscope images.

引用

页码：675 / 679

页数：5

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