| 用阵列电极研究不同阴离子介质中有机涂层/铁电极界面腐蚀行为 |
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| 引用本文： | 胡荣宗,林昌健,何瑞延,谭建光.用阵列电极研究不同阴离子介质中有机涂层/铁电极界面腐蚀行为[J].厦门大学学报(自然科学版),1997(6). |
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| 作者姓名： | 胡荣宗 林昌健 何瑞延 谭建光 |
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| 作者单位： | 厦门大学物理化学研究所化学系固体表面物理化学国家重点实验室 |
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| 摘 要： | 应用阵列电极测量不同阴离子介质中有机涂层／铁电极界面电位分布图，研究腐蚀发生、发展过程．实验结果表明：腐蚀优先发生在有机涂层／铁电极界面边缘．涂层一旦破裂，在Ｃｌ－介质中腐蚀很快发生并不断发展，在ＮＯ－３介质中腐蚀也很快发生，一段时间后就逐渐受抑制，而在ＣＯ２－３介质中腐蚀不发生．与常规电极相比，阵列电极能给出更详细的腐蚀界面的电化学参数．
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| 关 键 词： | 阵列电极，有机涂层，铁电极 |
Investigation of Iron Corrosion Process Beneath Coating in Different Kinds of Anion Solution Using the Technique of Array Electrode |
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| Hu Rongzong,Lin Changjian,He Ruiyan,Tan Jianguang.Investigation of Iron Corrosion Process Beneath Coating in Different Kinds of Anion Solution Using the Technique of Array Electrode[J].Journal of Xiamen University(Natural Science),1997(6). |
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| Authors: | Hu Rongzong Lin Changjian He Ruiyan Tan Jianguang |
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| Abstract: | The array electrode as a new electrochemical technique is applied to map the corrosion potential imaging and to sutdy the corrosion process at the interface of organic coating/iron after being immmersed in solutions containing different kinds of anion. The experiment results indicated that the corrosion preferentially occured on the edge of the surface of organic coating/iron and ,when the coating was broken down ,the crrosion occured and developeed in Cl - solution, however corrosion occured first and then was suppressed in NO - 3 solution and the corrosion was prevented in CO 2- 3 solution. In comparison with the traditional methodpolarization curve, more detailed crrosion information of coating/iron interface can be obtained from the array electrode technique. |
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| Keywords: | Array electrode Organic coating Iorn electrode |
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