Abstract

A Rangoon creeper flower (RCF) extract was investigated as green inhibitor to mitigate corrosion of mild steel in 1 M HCl solution. In the study, electrochemical impedance spectroscopy, polarization techniques, and gravimetric methods were used. A significant reduction in the corrosion rate with increased concentrations of the RCF extract at varied temperatures was noted. The inhibition of the corrosion process is due to the adsorption of the RCF extract on the mild steel surface. Polarization measurements revealed that the RCF extract was an inhibitor of a mixed type. The adsorption of the inhibitor on the mild steel surface followed the Langmuir isotherm. Functional groups present in the RCF extracts were recognized by using Fourier transform infrared spectroscopy. Scanning electron microscopy was applied to examine the surface morphology of mild steel.

中文翻译：

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仰光爬山虎花提取物在 1 M HCl 中抑制低碳钢腐蚀的可持续和绿色方法

摘要

研究了仰光爬山虎 (RCF) 提取物作为绿色抑制剂以减轻低碳钢在 1 M HCl 溶液中的腐蚀。在研究中，使用了电化学阻抗谱、极化技术和重量法。注意到在不同温度下随着 RCF 提取物浓度的增加，腐蚀速率显着降低。腐蚀过程的抑制是由于 RCF 提取物吸附在低碳钢表面上。极化测量表明，RCF 提取物是一种混合型抑制剂。缓蚀剂在低碳钢表面的吸附遵循朗缪尔等温线。RCF 提取物中存在的官能团通过使用傅立叶变换红外光谱进行识别。