摘要
采用动电位极化曲线和交流阻抗(EIS)研究了红茶提取液(BLE)在盐酸介质中对碳钢的缓蚀性能和缓蚀机理。研究结果表明,采用索氏提取法从红茶茶叶中提取的缓蚀剂,对碳钢在1.0 mol/L盐酸溶液中具有良好的缓蚀性能,随着提取物浓度的增加,缓蚀效率增大。红茶提取液中的有效缓蚀成分为抑制阴阳极反应的混合型缓蚀剂,在碳钢表面的吸附符合Langmuir等温式,属于单分子层吸附。
The corrosion inhibition effect of the Bohea leaves exctrative on carbon steel in 1.0 mol/L HCl solution was investigated by using potentiodynamic polarization and electrochemical impedance spectroscopy. The results indicate that the Bohea leaves extractive exhibits good corrosion inhibition effect on carbon steel. The inhibition efficiency increased with increasing concentration of Bohea leaves extractive. The Bohea leaves extractive is a mixed-type inhibitor. The adsorption of the effective corrosion inhibition component of Bohea leaves extractive on the carbon steel surface conforms with Langmuir adsorption isotherm equation, which belongs to monolayer adsorption.
出处
《应用化学》
CAS
CSCD
北大核心
2014年第4期469-473,共5页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金资助项目(21276027)
山东省中青年优秀科学家奖励基金项目(2008BS04030)
滨州学院科研基金项目(BZXYG1206)~~
关键词
红茶茶叶
盐酸
缓蚀剂
碳钢
bohea leaves
hydrochloric acid
corrosion inhibitor
carbon steel
