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首页> 外文期刊>International Journal of Electrochemical Science >Corrosion Inhibition of Low Carbon Steel by Strychnos nux- vomica Extract as Green Corrosion Inhibitor in Hydrochloric Acid Solution
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Corrosion Inhibition of Low Carbon Steel by Strychnos nux- vomica Extract as Green Corrosion Inhibitor in Hydrochloric Acid Solution

机译：马兜铃提取物作为绿色缓蚀剂在盐酸溶液中对低碳钢的缓蚀作用

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In this study, the inhibition action of Strychnos nux-vomica extract on the corrosion of carbon steel in 4% and 8 % HCl solution has been investigated in different temperatures. For this purpose, the methodsof weight loss, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization wereused for investigation of performance of Strychnos nux-vomica extract in ambient temperature, whilepotentiodynamic polarization method was also used at different temperatures to define the effect oftemperature on the inhibition efficiency of Strychnos nux-vomica extract. The obtained resultsdemonstrate that inhibition efficiency in both media increased with increasing concentrations anddecreases with increasing temperature. The polarization curves revealed that Strychnos nux-vomicaextract represent mixed-type behavior in both 4 % and 8 % HCl solution. At all temperatures, theadsorption of the extract components onto the steel surface was followed Langmuir adsorptionisotherm. Quantum chemical calculations were done to predict the adsorption of main components ofStrychnos nux-vomica extract on the metal surface.
机译：在这项研究中，研究了马兜铃提取物在不同温度下对4％和8％HCl溶液中碳钢腐蚀的抑制作用。为此目的，采用失重，电化学阻抗谱（EIS）和电势极化方法研究马兜铃提取物在环境温度下的性能，同时在不同温度下使用电势极化方法来定义温度对抑菌作用的影响。马兜铃提取物的功效。所得结果表明，两种介质中的抑制效率均随浓度的增加而增加，随温度的升高而降低。极化曲线表明，马兜铃提取物在4％和8％的HCl溶液中均表现出混合型行为。在所有温度下，都按照Langmuir等温吸附法将萃取物组分吸附到钢表面上。进行了量子化学计算，以预测Strychnos nux-vomica提取物的主要成分在金属表面的吸附。

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