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Experimental and theoretical investigations of Michelia alba leaves extract as a green highly- effective corrosion inhibitor for different steel materials in acidic solution

机译:Michelia Alba在酸性溶液中为不同钢材的绿色高效腐蚀抑制剂的实验和理论研究

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摘要

The aqueousMichelia alba leaf extract (MALE) was first evaluated as an inhibitor to the corrosion of different steelmaterials (industrial pure iron, stainless steel and carbon steel) in hydrochloric acid. The adsorption and corrosion inhibition of MALE were investigated by potentiodynamic polarization, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and quantum chemical calculations. The results showed that MALE acted as a highly-efficient mixed-type inhibitor for all steels and increasing temperatures benefited its corrosion inhibition. The adsorption of MALE on steel surfaces obeyed a Langmuir adsorption isotherm. Quantum chemical calculation results provided reasonable theoretical explanation for the inhibition property of MALE.
机译:首先将米歇尔菊属植物植物叶子提取物(男性)作为盐酸中不同钢材(工业纯铁,不锈钢和碳钢)腐蚀的抑制剂。 通过电压偏振,扫描电子显微镜(SEM),傅里叶变换红外光谱(FTIR)和量子化学计算来研究雄性的吸附和腐蚀抑制。 结果表明,雄性作为所有钢的高效混合型抑制剂,增加温度受益于其腐蚀抑制。 男性在钢表面上吸附术后吸附等温线。 量子化学计算结果为雄性的抑制性质提供了合理的理论解释。

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  • 来源
    《RSC Advances》 |2015年第114期|共9页
  • 作者单位

    School of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 P. R. China.;

    School of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 P. R. China.;

    School of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 P. R. China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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