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首页> 外文期刊>International Journal of Electrochemical Science >Viburnum Sargentii Koehne Fruit Extract As Corrosion Inhibitor For Mild Steel In Acidic Solution
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Viburnum Sargentii Koehne Fruit Extract As Corrosion Inhibitor For Mild Steel In Acidic Solution

机译：荚SarSargentii Koehne水果提取物作为酸性溶液中低碳钢的缓蚀剂

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The inhibition effect of Viburnum sargentii Koehne fruit extract (JMG) on mild steel corrosion in 1 MHCl solution was studied by weight loss measurement, electrochemical impedance spectroscopy (EIS)and potentiodynamic polarization curves. The results show that the inhibition effect has a relationshipwith the dosage of JMG. The inhibition efficiency increases as the concentration of JMG increases andexhibits the opposite trend with an increment in the temperature. The maximum inhibition efficiencyreaches 93.8% with the addition of 2.0% JMG at 303 K (weight loss results). JMG inhibits the anodicand cathodic processes simultaneously, and Ecorr does not change with the increasing concentration,indicating JMG exhibits mixed-type inhibition behavior. The adsorption process of JMG obeys theLangmuir isotherm model, which is an exothermic physisorption accompanied by a decrease inentropy. The activation energy determines the corrosion rate of mild steel in 1 M HCl solution.
机译：通过失重测量，电化学阻抗谱（EIS）和电位动力学极化曲线研究了荚果荚Vi果实提取物（JMG）对1 MHCl溶液中低碳钢腐蚀的抑制作用。结果表明，其抑制作用与JMG的用量有关。抑制效率随着JMG浓度的增加而增加，并且随着温度的升高而呈现相反的趋势。在303 K处添加2.0％JMG时，最大抑制效率达到93.8％（失重结果）。 JMG同时抑制阳极和阴极过程，Ecorr不随浓度的增加而变化，表明JMG表现出混合型抑制行为。 JMG的吸附过程遵循Langmuir等温线模型，该模型是放热的物理吸附，伴随着熵的降低。活化能决定了软钢在1 M HCl溶液中的腐蚀速率。

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