Use of HPHT Autoclave to Determine Corrosion Inhibition by Berberine extract on Carbon Steels in 3.5% NaCl Solution Saturated with CO<sub>2</sub>

Yuanhua Lin; Ambrish Singh; Eno E. Ebenso; M. A. Quraishi; Ying Zhou; Yun Huang

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Use of HPHT Autoclave to Determine Corrosion Inhibition by Berberine extract on Carbon Steels in 3.5% NaCl Solution Saturated with CO₂

机译：使用HPHT高压灭菌器测定在CO _{2 饱和的3.5％NaCl溶液中小Ber碱提取物对碳钢的腐蚀抑制作用}

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Roots extract of Coptis chinensis (Berberine extract) was characterized using gas chromatography(GC) and Fourier transform infrared spectroscopy (FTIR) methods. The influence of berberine extracton corrosion of carbon steels (J55, N80, P110SS and C110 steels) in 3.5 wt.% NaCl solution saturatedwith CO2 was evaluated using static high pressure and high temperature (HPHT) autoclave. Thesurface was further evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM), andcontact angle measurements. Quantum chemical calculations have been used to evaluate the structural,electronic, and reactivity parameters of the inhibitor on the steels surface. SEM, XRD, and contactangle measurement studies reveal that the surface of metals are quite unaffected after use of inhibitorin 3.5% NaCl solution saturated with CO2.

机译：采用气相色谱（GC）和傅里叶变换红外光谱（FTIR）方法对黄连的根提取物（小er碱提取物）进行了表征。使用静态高压和高温（HPHT）高压釜评估了黄连素提取物对碳钢（J55，N80，P110SS和C110钢）在3.5 wt％的NaCl溶液中饱和的CO2腐蚀的影响。通过X射线衍射（XRD），扫描电子显微镜（SEM）和接触角测量进一步评估表面。量子化学计算已用于评估抑制剂在钢表面的结构，电子和反应性参数。 SEM，XRD和接触角测量研究表明，在使用含CO2的3.5％NaCl抑制剂溶液中，金属表面完全不受影响。

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《International Journal of Electrochemical Science》 |2015年第1期|共15页
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Yuanhua Lin; Ambrish Singh; Eno E. Ebenso; M. A. Quraishi; Ying Zhou; Yun Huang;
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Use of HPHT Autoclave to Determine Corrosion Inhibition by Berberine extract on Carbon Steels in 3.5% NaCl Solution Saturated with CO2

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Use of HPHT Autoclave to Determine Corrosion Inhibition by Berberine extract on Carbon Steels in 3.5% NaCl Solution Saturated with CO₂