Corrosion Inhibition and Adsorption Behavior of 4–Amino Acetophenone Pyridine 2-Aldehyde in 1 M Hydrochloric Acid

R. Karthik; G. Vimaladevi; Shen-Ming Chen; A. Elangovan; B. Jeyaprabha; P. Prakash

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Corrosion Inhibition and Adsorption Behavior of 4–Amino Acetophenone Pyridine 2-Aldehyde in 1 M Hydrochloric Acid

机译：1M盐酸中4-氨基苯乙酮吡啶2-醛的腐蚀抑制与吸附行为

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The corrosion inhibition and adsorption behavior of 4 mino Acetophenone Pyridine 2-Aldehyde(4AAPA) towards mild steel has been studied in 1 M HCl using mass loss, potentiodynamicpolarization measurements and electrochemical impedance spectroscopy. The 4AAPA efficientlyinhibits the corrosion process and the inhibition efficiency increases with increasing concentration of4AAPA. The maximum inhibition efficiency (91%) can be achieved at the concentration andtemperature of 60 ppm and 308 K, respectively. The inhibition efficiency of 4AAPA decreases withincreasing the temperature over 308 K. The potentiodynamic polarization experiment indicates that4AAPA acts as mixed type corrosion inhibitor and the adsorption process follows the Langmuiradsorption isotherm. The surface morphology of mild steel specimen was investigated by atomic forcemicroscopy and scanning electron microscopy. The obtained results clearly reveal that 4AAPAperforms well as corrosion inhibitor for mild steel in hydrochloric acid solution.

机译：利用质量损失，势能极化测量和电化学阻抗谱研究了在1 M HCl中4氨基苯乙酮吡啶2-醛（4AAPA）对低碳钢的腐蚀抑制和吸附行为。 4AAPA有效地抑制腐蚀过程，并且随着4AAPA浓度的增加，抑制效率增加。在浓度和温度分别为60 ppm和308 K时，可以达到最大抑制效率（91％）。 4AAPA的缓蚀效率随着温度的升高而升高，超过308K。电位极化实验表明4AAPA作为混合型缓蚀剂，其吸附过程遵循Langmuiradsorb等温线。通过原子力显微镜和扫描电子显微镜研究了低碳钢试样的表面形态。所得结果清楚地表明，4AAPA在盐酸溶液中作为低碳钢的腐蚀抑制剂表现良好。

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《International Journal of Electrochemical Science》 |2015年第6期|共16页
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R. Karthik; G. Vimaladevi; Shen-Ming Chen; A. Elangovan; B. Jeyaprabha; P. Prakash;
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Corrosion Inhibition and Adsorption Behavior of 4–Amino Acetophenone Pyridine 2-Aldehyde in 1 M Hydrochloric Acid

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