个人信息Personal Information
教授
博士生导师
硕士生导师
性别:女
毕业院校:大连理工大学
学位:博士
所在单位:化工学院
学科:应用化学. 精细化工. 有机化学
办公地点:大连市高新区凌工路2号西部校区化工楼E434房间
联系方式:0411-84986265
电子邮箱:zhangshf@dlut.edu.cn
Synthesis and localized inhibition behaviour of new triazine-methionine corrosion inhibitor in 1 M HCl for 2024-T3 aluminium alloy
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论文类型:期刊论文
发表时间:2019-11-01
发表刊物:MATERIALS CHEMISTRY AND PHYSICS
收录刊物:EI、SCIE
卷号:237
ISSN号:0254-0584
关键字:Corrosion inhibitor; ECN; Localized corrosion; KPFM; EIS
摘要:A novel and efficient acid pickling inhibitor containing triazine and methionine groups against corrosion in 1 M HCl for 2024-T3 aluminium alloy was prepared. The novel inhibitor drove the inhibition efficiency to nearly 99% in 1 M HCl due to the formation of a compacted adsorption film. Especially, localized inhibition behaviour in the presence of the synthesized inhibitor was deeply studied mainly with electrochemical noise method (ECN), SEM, and Kelvin Probe Force Microscopy (KPFM). EDP and SDPS plots depicted the localized corrosion in 1 M HCl varying from low concentration to high concentration and XPS reveals that different localized corrosion behaviour is due to the different adsorption forms on the surface along with varied concentrations.