摘要
采用失重法、极化曲线和电化学阻抗谱(EIS)等方法对2-(4-吡啶基)苯并咪唑(PBI)在盐酸体系中对碳钢的缓蚀行为进行了研究。结果表明,PBI对碳钢的腐蚀具有优良的抑制作用,其缓蚀效率随着缓蚀剂浓度的增大而升高,随着温度升高和盐酸浓度增大而下降。PBI能够自发吸附在碳钢表面,其吸附遵循Langmuir吸附等温式。
Weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy （EIS） were used to investigate the corrosion inhibition of 2-（4-pyridyl）-benzimidazole （PBI） for carbon steel in hydrochloric acid. It is found that the inhibition efficiency of PBI increases with the increase of the concentration of PBI, and decreases with the increase in the temperature and concentration of hydrochloric acid. PBI is adsorbed on the surface of carbon steel spontaneously, and the adsorption of PBI obeys Langmuir isotherm.
出处
《腐蚀与防护》
CAS
北大核心
2013年第2期142-146,共5页
Corrosion & Protection
