Inhibitive effect of Xylopia ferruginea extract on the corrosion of mild steel in 1M HCl medium

被引：22
作者：
Raja, Pandian Bothi [1 ]
Rahim, Afidah Abdul [1 ]
Osman, Hasnah [1 ]
Awang, Khalijah [2 ]
机构：
[1] Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia
[2] Univ Malaya, Dept Chem, Fac Sci, Kuala Lumpur 50603, Malaysia
来源：
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2011年 / 18卷 / 04期
关键词：
steel corrosion; hydrochloric acid; plant extracts; corrosion inhibitors; polarization; MANGROVE TANNINS; ACID; PRODUCTS;
D O I：
10.1007/s12613-011-0455-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The alkaloid content of the leaves and stem bark of Xylopia ferruginea plant was isolated and tested for its anticorrosion potential on mild steel corrosion in a hydrochloric acid medium by using electrochemical impedance spectroscopy, potentiodynamic polarization measurement, scanning electron microscopy (SEM), and Fourier transform infra red (FTIR) analysis. The experimental results reveal the effective anticorrosion potential of the plant extract. The mixed mode of action exhibited by the plant extract is evidenced from the polarization study. SEM images proof the formation of a protective layer over the mild steel surface, and this is supported by the FTIR study. The possible mode of the corrosion inhibition mechanism has also been discussed.
引用
收藏
页码：413 / 418
页数：6
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