期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 215, 期 -, 页码 185-196出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2015.12.030
关键词
Anionic surfactant; Carbon steel; Weight loss; EIS; CMC; Biodegradability; FTIR
Novel anionic surfactants with phosphate group were synthesized and characterized by using FTIR and H-1 NMR spectroscopic analyses. The critical micelle concentration (CMC) and degree of dissociation of counter-ions were determined and discussed from conductivity measurements. The biodegradability of these surfactants was determined and discussed. Their corrosion inhibition effect on the carbon steel (CS) in 0.5 M H2SO4 solution has been evaluated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and weight loss methods. The inhibition efficiency increases with increasing the inhibitor concentration but decreases with the temperature increasing. The adsorption of inhibitors on the carbon steel surface obeys the Langmuir adsorption isotherm. Polarization curves show that the synthesized inhibitors are mixed -type inhibitors. Thermodynamic parameters of adsorption and kinetic were obtained from weight loss at different temperatures (25-60 degrees C). (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据