Electrochemical and Theoretical Investigation of Triazole Derivatives as Corrosion Inhibitors for Copper in 3.5% NaCl Solution

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	Electrochemical and Theoretical Investigation of Triazole Derivatives as Corrosion Inhibitors for Copper in 3.5% NaCl Solution
	Tian, Huiwen; Li, Weihua; Hou, Baorong
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2013-06-01
卷号	8 期号:6 页码:8513-8529
关键词	Copper EIS Polarization SEM Neutral inhibitor
ISSN号	1452-3981
通讯作者	Tian, HW
中文摘要	This paper presents the investigation of 4-amino-5-phenyl-4H-1,2,4-triazole-3-thiol and 4-amino-5-nitrophenyl-4H-1,2,4-triazole-3-thiol as corrosion inhibitors for copper in 3.5% NaCl solution. Determinations of weight loss, electrochemical measurements, scanning electronic microscope (SEM) and quantum chemical calculation were performed to analyze the inhibiting performance of these compounds. All compounds showed >90% inhibition efficiency at their optimum concentration. Thermodynamic calculation suggests that the adsorption of the inhibitors was found to follow the Langmuir adsorption isotherm. The relationships between inhibition efficiency and the molecular orbitals were calculated by quantum chemical method. The inhibition efficiency increased with the increase in E-HOMO and decrease in E-LUMO-E-HOMO.
英文摘要	This paper presents the investigation of 4-amino-5-phenyl-4H-1,2,4-triazole-3-thiol and 4-amino-5-nitrophenyl-4H-1,2,4-triazole-3-thiol as corrosion inhibitors for copper in 3.5% NaCl solution. Determinations of weight loss, electrochemical measurements, scanning electronic microscope (SEM) and quantum chemical calculation were performed to analyze the inhibiting performance of these compounds. All compounds showed >90% inhibition efficiency at their optimum concentration. Thermodynamic calculation suggests that the adsorption of the inhibitors was found to follow the Langmuir adsorption isotherm. The relationships between inhibition efficiency and the molecular orbitals were calculated by quantum chemical method. The inhibition efficiency increased with the increase in E-HOMO and decrease in E-LUMO-E-HOMO.
学科主题	Electrochemistry
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Electrochemistry
研究领域[WOS]	Electrochemistry
关键词[WOS]	MILD-STEEL CORROSION ; 3-PERCENT NACL ; ADSORPTION ; ACID ; IMPEDANCE ; BRONZE ; MEDIA
收录类别	SCI
语种	英语
WOS记录号	WOS:000323546100086
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16365]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
作者单位	Chinese Acad Sci, Shandong Inst Oceanol, Key Lab Corros Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Tian, Huiwen,Li, Weihua,Hou, Baorong. Electrochemical and Theoretical Investigation of Triazole Derivatives as Corrosion Inhibitors for Copper in 3.5% NaCl Solution[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2013,8(6):8513-8529.
APA	Tian, Huiwen,Li, Weihua,&Hou, Baorong.(2013).Electrochemical and Theoretical Investigation of Triazole Derivatives as Corrosion Inhibitors for Copper in 3.5% NaCl Solution.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,8(6),8513-8529.
MLA	Tian, Huiwen,et al."Electrochemical and Theoretical Investigation of Triazole Derivatives as Corrosion Inhibitors for Copper in 3.5% NaCl Solution".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 8.6(2013):8513-8529.