摘要
在酸性介质中,季铵阳离子与无机阴离子对铁具有明显的缓蚀协同效应,阴离子的表面活性越强,对协同效应的贡献越大,阳离子的结构对协同效应同样有着明显的影响。本文采用电化学方法仔细地研究了硫酸溶液中四丁基铵阳离子(TBA^+)和十六烷基吡啶阳离子(HDP^+)与SCN^-及I^-对铁的缓蚀协同效应。
The synergistic effect between tetra-butylammonium cation (TBA+) or hexadecyl pyridini-um cation (HDP+) and SCN- or I- in 0. 5 mol/L H2SO4 for corrosion inhibition of iron was investigated by potentiodynamic and polarization resistance techniques. The results show that the synergistic effect between HDP+ containing π electron construction and inorganic anion is stronger than that between TBA+ and inorganic anion. It was discussed in detail that joint adsorption pattern of cation and anion on the interface of electrode-solution is related to construction and property of ions.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第4期483-485,共3页
Chemical Journal of Chinese Universities
基金
中国科学院腐蚀科学开放研究实验室课题
关键词
缓蚀剂
季铵阳离子
协同效应
Inhibitor, Quaternary ammonium cation, Synergistic effect
