Experimental and theoretical studies on the inhibition properties of three diphenyl disulfide derivatives on copper corrosion in acid medium

doi:10.1016/j.molliq.2019.111975

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	Experimental and theoretical studies on the inhibition properties of three diphenyl disulfide derivatives on copper corrosion in acid medium
	Tan, Bochuan ; Zhang, Shengtao ; Qiang, Yujie ; Li, Wenpo ; Li, Hao ; Feng, Li ; Guo, Lei ; Xu, Chunliu ; Chen, Shijin ; Zhang, Guangyi
刊名	JOURNAL OF MOLECULAR LIQUIDS
	2020
卷号	298
关键词	MILD-STEEL CORROSION CARBON-STEEL SULFURIC-ACID MOLECULAR-DYNAMICS IONIC LIQUIDS SURFACE CHARACTERIZATION ANTICORROSIVE MECHANISM INDAZOLE DERIVATIVES ORGANIC-COMPOUNDS GREEN INHIBITOR
DOI	10.1016/j.molliq.2019.111975
英文摘要	2,2'-Dithiosalicylic acid (DSA), 2-aminophenyl disulfide (APD) and 2,2-dibenzamidodiphenyl disulfide (DPD) were determined for corrosion inhibition of Cu in H2SO4 media by electrochemical tests, surface morphology analysis, quantum chemical calculations and molecular dynamics simulations. The results of polarization curves showed that DSA, APD and DPD reveal good anti-corrosion capacity. They can simultaneously inhibit the cathodic and anodic reactions of copper. Therefore, they belong to the mixed-type corrosion inhibitors. Impedance spectroscopy results showed that when DSA, APD and DPD adsorption on the surface of Cu, the charge transfer resistance increases significantly and typical capacitance behavior produced, which indicates that the formed inhibitor film is very dense and ordered. In addition, the adsorption of corrosion inhibitors on the Cu surface is conforming to Langmuir monolayer adsorption. The experimental results obtained by surface topography analysis are consistent with the results of electrochemical experiments. Their corrosion inhibition ability is DSA < APD < DPD. Theoretical calculations further explore the relationship between corrosion inhibition performance and their molecular configurations. (C) 2019 Elsevier B.V. All rights reserved.
学科主题	Chemistry ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20169]
专题	2020专题
作者单位	1.Qiang, YJ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. 2.Tan, BC 3.Zhang, ST (corresponding author), Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China.
推荐引用方式 GB/T 7714	Tan, Bochuan,Zhang, Shengtao,Qiang, Yujie,et al. Experimental and theoretical studies on the inhibition properties of three diphenyl disulfide derivatives on copper corrosion in acid medium[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,298.
APA	Tan, Bochuan.,Zhang, Shengtao.,Qiang, Yujie.,Li, Wenpo.,Li, Hao.,...&Zhang, Guangyi.(2020).Experimental and theoretical studies on the inhibition properties of three diphenyl disulfide derivatives on copper corrosion in acid medium.JOURNAL OF MOLECULAR LIQUIDS,298.
MLA	Tan, Bochuan,et al."Experimental and theoretical studies on the inhibition properties of three diphenyl disulfide derivatives on copper corrosion in acid medium".JOURNAL OF MOLECULAR LIQUIDS 298(2020).