Synergistic effects of sodium lauroyl sarcosinate and glutamic acid in inhibition assembly against copper corrosion in acidic solution
Synergistic effects of sodium lauroyl sarcosinate and glutamic acid in inhibition assembly against copper corrosion in acidic solution
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DOI：
10.1016/j.apsusc.2015.08.034
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发表时间：
2015-11
影响因子：
6.7
通讯作者：
Yinzhe Yu;Daquan Zhang;Huijing Zeng;Bin Xie;Li-xin Gao;Tong Lin
中科院分区：
文献类型：
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作者：
Yinzhe Yu;Daquan Zhang;Huijing Zeng;Bin Xie;Li-xin Gao;Tong Lin
月桂酰肌氨酸钠（SLS）和谷氨酸（GLU）在铜表面形成了自组装多层膜（SAM）。通过电化学分析和失重试验考察了其对铜的缓蚀性能。与仅由SLS或GLU形成的SAM相比，当SLS和GLU在SAM中共存时观察到协同效应。SLS/GLU自组装膜具有针状多层结构，在5 mM SLS和1 mM GLU条件下制备的自组装膜具有最好的保护效果。PM 6计算结果表明，SLS、GLU和Cu ~（2+）之间存在协同效应。
A self-assembled multilayer (SAM) from sodium lauroyl sarcosinate (SLS) and glutamic acid (GLU) is formed on copper surface. Its inhibition ability against copper corrosion is examined by electrochemical analysis and weight loss test. In comparison to SAM formed by just SLS or GLU, a synergistic effect is observed when the coexistence of SLS and GLU in SAM. The SLS/GLU SAM has an acicular multilayer structure, and SAM prepared under the condition of 5 mM SLS and 1 mM GLU shows the best protection efficiency. PM6 calculation reveals that the synergistic effect stems from interactions between SLS, GLU and cupric ions.