摘要
对不同浓度十八烷基胺（ＯＤＡ）处理铁电极的交流阻抗研究显示，电极阻抗值先随ＯＤＡ浓度的增加而增大，在ＯＤＡ为２５ｍｇ／Ｌ时阻抗值最大，之后，随ＯＤＡ浓度增加而减小；用俄歇电子能谱对成膜电极进行表面分析，发现ＯＤＡ处理后膜表面具有如下结构：铁｜氧化铁层｜含氧化铁的ＯＤＡ层｜ＯＤＡ层；ＯＤＡ层在乙醇中溶解后电极阻抗值减小。
Abstract The iron electrodes treated by ODA of various concentrations were studied by electrochemical inpedance spectroscopy. It showed that with increasing ODA concentration the electrode impedance rises first, then goes down. The highest impedance is at Ca 25 mg/L of ODA concentration. It is assumed from AES that the structure of surface layer of electrode treated by ODA is as followse:iron|iron oxide|ODA Layer with oxide|ODA Layer
出处
《材料保护》
CAS
CSCD
北大核心
1998年第11期34-35,共2页
Materials Protection
