Garlic Extract as an Environmentally Corrosion Inhibitor of API X60 Carbon Steel and 316L Stainless Steel in Sulphuric Acid

IF 1.1 Q4 ELECTROCHEMISTRY Portugaliae Electrochimica Acta Pub Date : 2022-01-01 DOI:10.4152/pea.2022400403
S. Belkaid, S. Hamdani, D. Mansour
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引用次数: 2

Abstract

The high toxicity of industrial metal corrosion inhibitors raises various environmental and health problems. Thus, the study of metals and alloys corrosion inhibition, in acidic media, by eco-compatible organic compounds, has become a very attractive research field. In this paper, garlic ( Allium Sativum ) extract inhibition efficiency (IE) against API X60 carbon steel (CS) and 316L stainless steel (SS) corrosion, in a 1 M sulphuric acid (H 2 SO 4 ) solution, has been investigated using electrochemical techniques, including potentiodynamic polarization (PPD) and electrochemical impedance spectroscopy (EIS). The experimental results showed the remarkable corrosion inhibitive performance of garlic extract (GE). The corrosion IE, which depends on the inhibitor concentration, increased up to 90%, for SS, and 67% for CS, as shown from the PPD tests. EIS analysis showed that the corrosion resistance (CRST) was increased in the medium with GE, indicating the properties improvement of the passive films formed on the steels surfaces.
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大蒜提取物作为API X60碳钢和316L不锈钢在硫酸中的环境缓蚀剂
工业金属缓蚀剂的高毒性引起了各种环境和健康问题。因此,研究生态相容性有机化合物在酸性介质中对金属和合金的缓蚀作用已成为一个非常有吸引力的研究领域。本文利用电化学技术,包括动电位极化(PPD)和电化学阻抗谱(EIS),研究了大蒜(Allium Sativum)提取物在1 M硫酸(h2so4)溶液中对API X60碳钢(CS)和316L不锈钢(SS)的缓蚀效果(IE)。实验结果表明,大蒜提取物(GE)具有显著的缓蚀性能。从PPD测试中可以看出,腐蚀IE(取决于缓蚀剂浓度)在SS中增加了90%,在CS中增加了67%。EIS分析表明,在GE介质中,钢的耐蚀性(CRST)提高,表明钢表面形成的钝化膜的性能得到改善。
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来源期刊
CiteScore
2.30
自引率
16.70%
发文量
17
期刊介绍: Portugaliae Electrochimica Acta is a bi-monthly Journal published by the Portuguese Electrochemical Society since 1983. Portugaliae Electrochimica Acta publishes original papers, brief communications, reviews and letters concerned with every aspect of theory and practice of electrochemistry, as well as articles in which topics on history, science policy, education, etc. in the electrochemical field (teaching or research) may be discussed.
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