摘要
采用塔菲尔极化曲线和电化学阻抗谱(EIS)测量方法,研究了5%(质量分数)硫酸溶液中N,N′–二苯基硫脲(DPH-TU)和十二烷基磺酸钠(SDS)对Q235钢的协同缓蚀效应及其机理。实验表明,添加十二烷基磺酸钠对N,N′–二苯基硫脲的缓蚀效果有促进作用。当N,N′–二苯基硫脲和十二烷基磺酸钠的浓度比为1∶1时,其协同缓蚀效应最为显著。
The synergistic inhibition effect of N,N＇- diphenylthiourea （DPH-TU） and sodium dodecyl sulfonate （SDS） and related mechanism for Q235 steel in 5wt% H2SO4 solution were studied by Tafel polarization curves and electrochemical impedance spectroscopy （EIS）. The results showed that the corrosion inhibition effect of DPH-TU is promoted by the addition of SDS. The synergistic effect is most significant when the concentration ratio of DPH-TU to SDS is 1 ： 1.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2011年第2期21-24,共4页
Electroplating & Finishing
基金
国家自然科学基金(50964008)
关键词
Q235钢
缓蚀剂
极化曲线
电化学阻抗谱
协同效应
Q235 steel
corrosion inhibitor
polarization curve
electrochemical impedance spectroscopy
synergistic effect
