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首页> 外文期刊>International Journal of Electrochemical Science >Inhibitory Action of Ilex paraguariensis Extracts on the Corrosion of Carbon Steel in HCl Solution
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Inhibitory Action of Ilex paraguariensis Extracts on the Corrosion of Carbon Steel in HCl Solution

机译：巴拉圭冬青提取物对碳钢在HCl溶液中的腐蚀抑制作用

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摘要

The effect of Ilex paraguariensis extracts on the corrosion of carbon steel in 1 mol L HCl was-1 examined. The efficiency for inhibiting the corrosion of C-steel in 1 mol L HCl increased as theextract concentration and immersion time increased. Polarization curves show that this extract act asmixed-type inhibitor with predominantly cathodic characteristics. The apparent activation energy (Ea)for the dissolution of C-steel slightly decreased when the extract was used. This result could beattributed to the chemisorption of the inhibitor onto the steel surface. The inhibitory property of theextract is discussed in terms of the mechanism by which its components adsorb onto the C-steelsurface. This adsorption process obeyed a Langmuir adsorption isotherm. The phenolic componentsare not the only factor responsible for the inhibitory action of natural products.
机译：考察了巴拉圭冬青提取物对碳钢在1 mol L HCl中腐蚀的影响，结果为-1。随着萃取浓度和浸入时间的增加，抑制C钢在1 mol L HCl中的腐蚀效率提高。极化曲线表明，该提取物具有主要是阴极特性的混合型抑制剂。使用萃取液时，溶解C钢的表观活化能（Ea）略有降低。该结果可以归因于抑制剂在钢表面上的化学吸附。从萃取物的成分吸附到C型钢表面上的机理方面讨论了萃取物的抑制性能。该吸附过程遵循Langmuir吸附等温线。酚类成分不是造成天然产物抑制作用的唯一因素。

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