Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis

doi:10.3390/molecules27123826

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	Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis
	Feng, Lijuan 2; Zhang, Shanshan 2; Hao, Long 1; Du, Hongchen 2; Pan, Rongkai 2; Huang, Guofu 2; Liu, Haijian 2
刊名	MOLECULES
	2022-06-01
卷号	27 期号:12 页码:18
关键词	carbon steel extract green corrosion inhibitor quantum chemical calculation
DOI	10.3390/molecules27123826
通讯作者	Feng, Lijuan(ljfeng@alum.imr.ac.cn)
英文摘要	An extract of cucumber leaves (ECSL) was prepared as a green corrosion inhibitor for carbon steel. Its carbon steel corrosion inhibition performance against 0.5 mol L-1 H2SO4 was investigated using electrochemical methods and scanning electron microscopy (SEM). Its composition was analyzed by gas chromatography and mass spectroscopy (GC-MS). Quantum chemical calculations and molecular dynamics simulations (MDS) were conducted to elucidate the adsorption mechanism of the inhibitor molecules on the carbon steel surface. The results indicated that the inhibition efficiency increases with its increasing concentration. The extract acted as a mixed type corrosion inhibitor, and its inhibition properties were ascribed to the geometric coverage effect induced by its adsorption on the metal surface in accordance with Langmuir's law. The active components in the extract were identified as mainly organic compounds with functional groups such as aromatic moieties and heteroatoms. The inhibition activities of ECSL are delivered through the ability of the active components to adsorb on the metal surface through their functional groups to form a protective layer which hinders the contact of aggressive substances with carbon steel and thus suppresses its corrosion. This research provides an important reference for the design of green corrosion inhibitors based on plant waste materials.
资助项目	Shandong Provincial Natural Science Foundation[ZR2019MEM046]
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
语种	英语
出版者	MDPI
WOS记录号	WOS:000819065900001
资助机构	Shandong Provincial Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174898]
专题	金属研究所_中国科学院金属研究所
通讯作者	Feng, Lijuan
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Weifang Univ Sci & Technol, Shandong Engn Res Ctr Green & High Value Marine F, Weifang 262700, Peoples R China
推荐引用方式 GB/T 7714	Feng, Lijuan,Zhang, Shanshan,Hao, Long,et al. Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis[J]. MOLECULES,2022,27(12):18.
APA	Feng, Lijuan.,Zhang, Shanshan.,Hao, Long.,Du, Hongchen.,Pan, Rongkai.,...&Liu, Haijian.(2022).Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis.MOLECULES,27(12),18.
MLA	Feng, Lijuan,et al."Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis".MOLECULES 27.12(2022):18.