Electrochemistry and Materials Science Research Laboratory, Department of Chemistry, Federal University of Technology Owerri, PMB 1526, Owerri, Nigeria.
J Colloid Interface Sci. 2010 Sep 1;349(1):283-92. doi: 10.1016/j.jcis.2010.05.027. Epub 2010 May 15.
The inhibition of low-carbon-steel corrosion in 1M HCl and 0.5M H(2)SO(4) by extracts of Dacryodis edulis (DE) was investigated using gravimetric and electrochemical techniques. DE extract was found to inhibit the uniform and localized corrosion of carbon steel in the acidic media, affecting both the cathodic and anodic partial reactions. The corrosion process was inhibited by adsorption of the extracted organic matter onto the steel surface in a concentration-dependent manner and involved both protonated and molecular species. Molecular dynamics simulations were performed to illustrate the process of adsorption of some specific components of the extract.
采用重量法和电化学技术研究了麻疯树（Dacryodis edulis）提取物对 1M HCl 和 0.5M H（2）SO（4）中低碳钢腐蚀的抑制作用。研究发现，DE 提取物能抑制碳钢在酸性介质中的均匀腐蚀和局部腐蚀，影响阴极和阳极的部分反应。腐蚀过程受提取的有机物在钢表面的浓度依赖性吸附抑制，涉及质子化和分子态物质。通过分子动力学模拟阐明了提取物中某些特定成分的吸附过程。
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