| 碱土金属离子与EDTA对纯铝在碱性溶液中的协同缓蚀作用 |
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| 引用本文： | 邵海波,王晓艳,王建明,王俊波,张鉴清,曹楚南.碱土金属离子与EDTA对纯铝在碱性溶液中的协同缓蚀作用[J].物理化学学报,2006,22(3):312-315. |
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| 作者姓名： | 邵海波 王晓艳 王建明 王俊波 张鉴清 曹楚南 |
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| 作者单位： | Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China; State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, P. R. China |
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| 基金项目： | 中国科学院资助项目;中国博士后科研项目 |
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| 摘 要： | 通过集气实验、极化曲线和电化学阻抗谱等方法研究了碱土金属离子与乙二胺四乙酸(EDTA)对纯铝在4 mol?L-1 KOH溶液中的协同缓蚀作用. 实验结果表明铝在含0.02 mol?L-1 EDTA和饱和Ca(OH)2、Sr(OH)2的溶液中具有最小的腐蚀速率. EDAX分析表明碱土金属离子和EDTA没有参与到铝表面氧化膜的组成中, 说明缓蚀剂是通过吸附在铝表面起作用的, 这表明它们是界面型缓蚀剂而非相间型缓蚀剂.
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| 关 键 词： | 纯铝 碱性溶液 腐蚀 碱土金属 EDTA 缓蚀剂 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-10-24 |
The Cooperative Inhibition Effects of Alkaline Earth Metal Ions and EDTA on the Corrosion of Pure Aluminum in an Alkaline Solution |
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| SHAO,Hai-Bo,WANG,Xiao-Yan,WANG,Jian-Ming,WANG,Jun-Bo,ZHANG,Jian-Qing,CAO,Chu-Nan.The Cooperative Inhibition Effects of Alkaline Earth Metal Ions and EDTA on the Corrosion of Pure Aluminum in an Alkaline Solution[J].Acta Physico-Chimica Sinica,2006,22(3):312-315. |
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| Authors: | SHAO Hai-Bo WANG Xiao-Yan WANG Jian-Ming WANG Jun-Bo ZHANG Jian-Qing CAO Chu-Nan |
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| Institution: | Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China; State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, P. R. China |
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| Abstract: | The cooperative effects of alkaline earth metal ions and EDTA (ethylenediamine tetraacetic acid) on the polarization curve and electrochemical impedance spectroscopy(EIS). It was found that aluminum exhibits minimum EDAX analysis showed that alkaline earth metal ions and EDTA have no contribution to the formation of the surface film on aluminum. Therefore the inhibition effect may be caused by the adsorption of the inhibitor on aluminum surface. This fact indicates that these two ions act as interface inhibitors rather than inter-phase ones. |
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| Keywords: | Pure aluminum Alkaline solution Corrosion Alkaline earth metal EDTA Inhibitor |
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