应用化学2012，Vol.29Issue(8)：962-968,7.DOI:10.3724/SP.J.1095.2012.00398
滑竹叶提取物在盐酸介质中对铝的缓蚀性能
Corrosion Inhibition of Yushania Polytricha Leaves Extract for Aluminum in Hydrochloric Acid Media
摘要
Abstract
The inhibition effect of Yushania polytricha leaves extract (YPLE) on the corrosion of aluminum in 1.0 mol/L HC1 media was studied by mass loss, potentiodynamic polarization curves, electrochemical impedance spectroscopy, Fourier transform infrared spectroscopy, ultraviolet spectrophotometry and scanning electron microscope methods. The results show that YPLE is a good inhibitor, and the inhibition efficiency increases with the inhibitor concentration. The adsorption of YPLE on aluminum surface obeys Langmuir adsorption isotherm. YPLE behaves as a cathodic inhibitor. EIS spectra exhibit one capacitive loop at high frequencies followed by an inductive one at low frequency values, and the impedance value increases with the inhibitor concentration. SEM results confirm the corrosion of aluminum is retarded remarkably by the addition of YPLE.关键词
铝/盐酸/滑竹/提取物/缓蚀/吸附Key words
aluminum, hydrochloric acid, Yushania polytricha, extract, inhibition, adsorption分类
化学化工引用本文复制引用
李向红,邓书端,付惠..滑竹叶提取物在盐酸介质中对铝的缓蚀性能[J].应用化学,2012,29(8):962-968,7.基金项目
国家自然科学基金资助项目(51161023),云南省应用基础研究面上项目(2009CD072) （51161023）
