Investigation of inhibition of 2-mercaptobenzoxazole for copper corrosion

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	Investigation of inhibition of 2-mercaptobenzoxazole for copper corrosion
	C. W. Yan; H. C. Lin; C. N. Cao
	2000
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	45 期号:17 页码:2815-2821
摘要	The inhibition by 2-mercaptobenzoxazole (MBO) of copper corrosion in NaCl solution was investigated by means of potentiodynamic polarization, STM: QCM, XPS, FTIR and AES. The inhibition efficiency depended on MBO concentration, existence of NaCl and the immersion period of the copper sample. The inhibition efficiency of about 99% could be obtained by immersing for above 20 h in 3% NaCl + 1 mM MBO solution. The surface of the copper sample immersed in NaCl + MBO solution possessed FTIR characteristics different from those of MBO solution, irrespective of immersion time. The in-situ STM morphologies showed the rapid formation of a three-dimensional compact inhibition film on the surface of copper in MBO solution containing NaCl. XPS indicated that the inhibition film was cuprous and the chemical environments of S and N atoms were evidently changed. It is concluded that MBO reacted with the cuprous species from the corrosion process, and produced a water-insoluble cuprous complex to form the inhibition film and to retard the corrosion of copper. (C) 2000 Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, state key lab corros & protect, shenyang 110015, peoples r china.;yan, cw (reprint author), chinese acad sci, state key lab corros & protect, 62 wencui rd, shenyang 110015, peoples r china
关键词	Corrosion Inhibition Copper 2-mercaptobenzoxazole Stm Qcm Heterocyclic-compounds Chloride Media Benzotriazole Efficiency Electrode Behavior Films Sers Xps Cu
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WOS记录号	WOS:000087306900013
引用统计	被引频次：128[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37219
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. W. Yan,H. C. Lin,C. N. Cao. Investigation of inhibition of 2-mercaptobenzoxazole for copper corrosion[J]. Electrochimica Acta,2000,45(17):2815-2821.
APA	C. W. Yan,H. C. Lin,&C. N. Cao.(2000).Investigation of inhibition of 2-mercaptobenzoxazole for copper corrosion.Electrochimica Acta,45(17),2815-2821.
MLA	C. W. Yan,et al."Investigation of inhibition of 2-mercaptobenzoxazole for copper corrosion".Electrochimica Acta 45.17(2000):2815-2821.