| 锌铝层状双金属氢氧化物焙烧物对钢筋的缓蚀作用研究 |
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| 引用本文： | 张小娟,王静静,董士刚,林昌健. 锌铝层状双金属氢氧化物焙烧物对钢筋的缓蚀作用研究[J]. 电化学, 2013, 19(3): 256-261 |
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| 作者姓名： | 张小娟 王静静 董士刚 林昌健 |
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| 作者单位： | 1. 厦门大学 固体表面物理化学国家重点实验室，化学化工学院化学系，福建 厦门 361005；2. 厦门大学能源研究院，福建 厦门 361005 |
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| 基金项目： | 国家自然科学基金项目(No.21203158,No.50731004)资助 |
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| 摘 要： | 在空气气氛下合成了锌铝层状双金属氢氧化物(Zn-Al LDHs)和焙烧物(Zn-Al CLDHs)，扫描电镜结果表明，所制得的双金属氢氧化物具有明显的层状结构. 文中研究了Zn-Al CLDHs 对钢筋的腐蚀保护效果，Zn-Al CLDHs固体在NaCl 溶液中浸泡处理3 h 后，钢筋的腐蚀速率显著降低. 实验证明，Zn-Al CLDHs 在结构重组过程中可吸收溶液中的Cl-，同时释放出OH-，改善腐蚀环境，有效抑制钢筋的腐蚀.
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| 关 键 词： | 钢筋 腐蚀 双金属氢氧化物 缓蚀剂 |
Multifunctional Corrosion Inhibition Behavior of Zn-Al Calcined Layered Double Hydroxides for Steel Rebar in NaCl Solution |
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| ZHANG Xiao-juan,WANG Jing-jing,DONG Shi-gang,LIN Chang-jian. Multifunctional Corrosion Inhibition Behavior of Zn-Al Calcined Layered Double Hydroxides for Steel Rebar in NaCl Solution[J]. Electrochemistry, 2013, 19(3): 256-261 |
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| Authors: | ZHANG Xiao-juan WANG Jing-jing DONG Shi-gang LIN Chang-jian |
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| Affiliation: | 1*(1.State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China;2.School of Energy Research,Xiamen University,Xiamen 361100,Fujian,China) |
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| Abstract: | The Zn-Al layered double hydroxides (Zn-Al LDHs) and calcined products (Zn-Al CLDHs) were synthesized successfully under a routine air atmosphere. The results showed that both Zn-Al LDHs and Zn-Al CLDHs had obvious flake structures. The corrosion inhibition of Zn-Al CLDHs for steel rebar in NaCl solution was studied by electrochemical techniques. It was found that the corrosion rate of steel rebar decreased significantly after the steel rebar was treated by Zn-Al CLDHs in NaCl solution for 3 h. It was indicated that Zn-Al CLDHs could absorb Cl- and release OH- during their reconstruction process, which provided dual protection for the steel rebar. |
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