材料科学与工程学报2017，Vol.35Issue(2)：296-300,5.DOI:10.14136/j.cnki.issn 1673-2812.2017.02.026
盐酸介质中咪唑离子液体对铜的缓蚀作用
Corrosion Inhibitor of Imidazolium Ionic Liquid on Copper in HCI Solution
摘要
Abstract
1 methy 3 (4vsulfate butyl) imidazolium ionic liquid was synthetized using 1-methylimidazole,1,4-butane sultone,concentrated sulfuric acid by being washed with ether.The potentiodynamic polarization and electrochemical impedance spectroscopy were used to study the corrosion mechanism and inhibiting performance of 4-BMIM on copper in 5％ hydrochloric acid medium.The results show that the inhibition efficiency first increases and then decreases with the increase of inhibition concentration,and the maximum inhibition efficiency is obtained with 0.03mol/L 4-BMIM.However,the inhibition efficiency decreases with the increase of temperature at the same concentration.The polarization curves show that 4-BMIM is a mixed type inhibitor,and inhibits both the cathodic and anodic reactions.The results of thermodynamic calculation reveal that adsorption mechanism of 4-BMIM on the copper surface is spontaneous physisorption and it fits the Langmuir adsorption isotherm.关键词
缓蚀剂/离子液体/铜/极化曲线/物理吸附Key words
corrosion inhibitor/ionic liquid/copper/polarization curves/physisorption分类
矿业与冶金引用本文复制引用
段腾龙,陈旭,任帅..盐酸介质中咪唑离子液体对铜的缓蚀作用[J].材料科学与工程学报,2017,35(2):296-300,5.基金项目
国家自然科学基金资助项目(51201009),辽宁省自然科学基金资助项目(2013020078) （51201009）
