盐酸
介电谱
腐蚀
电化学噪声
X射线光电子能谱
傅里叶变换红外光谱
材料科学
电化学
拉曼光谱
核化学
扫描电子显微镜
冶金
化学
化学工程
复合材料
电极
物理
光学
物理化学
工程类
作者
Fatemeh Marhamati,Mohammad Mahdavian,Saeed Bazgir
标识
DOI:10.1038/s41598-021-97944-7
摘要
Abstract Plant extracts have gained a lot of attention due to their ecofriendly nature for corrosion inhibition. In this study, we examined the inhibition performance of grape seed extract as an eco-environmental inhibitor for mild steel in hydrochloric acid medium. Electrochemical impedance spectroscopy, potentiodynamic polarization, and electrochemical noise techniques were employed to study mild steel's electrochemical behavior in the hydrochloric acid solutions containing grape seed extract. Results depicted that grape seed extract could successfully inhibit the corrosion of mild steel. Besides, water droplet contact angle, field-emission scanning electron microscopy coupled with energy dispersive spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy were utilized to study the surface of mild steel specimens after dipping in acidic solutions. Electrochemical impedance results showed a corrosion efficiency of about 88% in 300 ppm of grape seed extract. Also, results revealed more compact corrosion products with improved integrity in the presence of grape seed, which confirmed electrochemical test results.
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