组氨酸衍生物自组装膜的缓蚀性能
lnhibition Performance of Histidine Derivatives Self-assembled Films
摘 要
采用电化学方法研究了组氨酸和乙酰组氨酸、苄氧羰基组氨酸两种组氨酸衍生物自组装膜对304不锈钢在0.5 mol/L HCl溶液中的缓蚀性能。使用接触角测试、X射线光电子能谱（XPS）技术对304不锈钢表面的自组装膜进行了表征。电化学测试结果表明：组氨酸、苄氧羰基组氨酸和乙酰组氨酸三种缓蚀剂分子的自组装膜对304不锈钢均有一定的缓蚀作用。XPS测试结果表明：组氨酸衍生物与304不锈钢表面发生了化学吸附，形成了自组装膜,起到了缓蚀效果。
组氨酸
不锈钢
腐蚀
self-assembling
histidine
stainless steel
corrosion
Abstract
Three histidine derivatives self-assembled (SA) films were prepared on 304 stainless steel (SS) surface. The inhibition performance of the films in 0.5 mol/L HCl solution was investigated using electrochemical impedance spectroscopy (EIS), polarization curve, interface contact angle map and X-ray photoelectron spectroscopy (XPS) technique. The electrochemical test results showed that films of three amino acids derivatives were able to protect 304 SS from corrosion effectively. The results of XPS indicated that the corrosion inhibition was due to the fact that histidine derivatives formed a chemisorbed film on the surface of 304SS.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201609002
所属栏目 试验研究
基金项目 广西自然科学基金（2012GXNSFBA019248）； 广西岩土力学与工程重点实验室资助课题(12-KF-03)
收稿日期 2015/6/3
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备注张 哲（1978-），副教授，博士，主要从事金属腐蚀与防护研究工作。
引用该论文: ZHANG Zhe,LI Xiu-ying,TIAN Ning-chen,LI Ping,NI Fu-song. lnhibition Performance of Histidine Derivatives Self-assembled Films[J]. Corrosion & Protection, 2016, 37(9): 701
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参考文献
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【2】ULMAN A. Formation and structure of self-assembled monolayers[J]. ChemRev,1996,96(4):1533-1554.
【3】SHUSTAK G,DOMB A J,MANDLER D. Preparation and characterization of n-alkanoic acid self-assembled monolayers adsorbed on 316L stainless steel[J]. Langmuir,2004,20(18):7499-7506.
【4】OLIVARES-XOMETI O,LIKHANOVA N V,DOMNGUEZ-AGUILAR M A,et al. Systhesis and corrosion inhibition of α-amino acids alkylamides for mild steel in acidic environment[J]. Mater Chem Phys,2008,110(23):344-351.
【5】EL-SHAFEI A A,MOUSSA M N H,EL-FAR A A. Inhibitory effect of amino acids on Al pitting corrosion in 0.1 M NaCl[J]. J Appl Electrochem,1997,27(9):1075-1078.
【6】AMIN M A,KHALE K F,MOHSEN Q,et al. A study of the inhibition of iron corrosion in HCl solutions by some amino acids[J]. Corros Sci,2010,52(5):1684-1695.
【7】贾明子,张哲,阮乐,等. 咪唑类化合物自组装膜316不锈钢的缓蚀作用[J]. 表面技术,2010,42(3):23-27.
【8】张哲,倪福松,阮乐,等. 谷氨酸及其衍生物在304不锈钢表面的自组装膜[J]. 腐蚀与防护,2014,35(12):1202-1207.
【9】KHALED K F,HACKERMAN N. Investigation of the inhibitive effect of ortho-substitued anilines on corrosion of iron in 0.5 M H2SO4 solution[J]. Materials Chemistry and Physics,2003,82(3):949-960.
【10】WU X,MA H,CHEN S,et al. General equivalent circuits for faradaic electrode processes under electrochemical reaction control[J]. Journal of the Chemical Society,1999,146(5):1847-1853.
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