详细信息
苯并三氮唑与5-羧基苯并三氮唑在NaCl溶液中对铜缓蚀作用的SERS研究
SERS Studies of the Corrosion Inhibition of BTA and Its Derivative 5 CBTA on Copper Electrode in NaCl Solution
文献类型:期刊文献
中文题名:苯并三氮唑与5-羧基苯并三氮唑在NaCl溶液中对铜缓蚀作用的SERS研究
英文题名:SERS Studies of the Corrosion Inhibition of BTA and Its Derivative 5 CBTA on Copper Electrode in NaCl Solution
作者:徐群杰[1];周国定[1];陆柱[2];刘峰名[3];田中群[3];林昌健[3]
机构:[1]上海电力学院电化学研究室国家电力公司热力设备腐蚀与防护(部级)重点实验室,上海200090;[2]华东理工大学防腐蚀中心,上海200237;[3]厦门大学固体表面物理化学国家重点实验室,厦门361005
年份:2001
卷号:27
期号:2
起止页码:181
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;Scopus;北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金资助项目 !(2 98760 0 8) ;上海市自然科学基金资助项目 ;厦门大学固体表面物理化学国家重点实验室资助项目 !(970
语种:中文
中文关键词:铜电极;BTA;5CBTA;缓蚀剂;表面增强拉曼光谱
外文关键词:Cu electrode; BTA; 5CBTA; inhibitor; SERS
摘要:采用表面增强拉曼光谱技术 ( SERS)研究了 w=0 .0 3Na Cl溶液中 BTA(苯并三氮唑 )及其衍生物 5CBTA( 5-羧基苯并三氮唑 )对铜的缓蚀作用机理 ,发现 5CBTA对铜的作用与 BTA的作用机理相似 ,在较大正电位下两者都是通过三氮唑环与铜形成配合物覆盖在铜表面 ,随着电位负移在铜电极表面吸附的聚合物膜逐渐转化为分子形式吸附 ,5CBTA中的— COOH基团只是起到空间位阻的作用 ,没有参与电极表面的吸附。两者复配使用以 BTA吸附为主 ,其缓蚀机理没有发生改变 。
The corrosion inhibition of BTA and its derivative 5CBTA on Cu in 3% NaCl solution were studied by SERS technique. As from a protective film through the triazole ring, the inhibition mechanism for these inhibitors are found to be nearly the same. When the potential turn to negative, the molecules of BTA or 5CBTA are gradually adsorbed on the copper surface. The substitute group (—COOH) of 5CBTA acts as a steric hindrance. A combination of BTA and 5CBTA doesn't show any synergistic effect and the adsorption substance on the copper surface is mainly BTA.
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