Bronsted acid ionic liquid; Electrochemical passivation behavior to mild steel

被引：11
作者：
Cao, Shuyun [1 ]
Liu, Dan [1 ]
Ding, Hui [2 ]
Peng, Kun [1 ]
Yang, Lixia [1 ]
Lu, Hui [3 ]
Gui, Jianzhou [1 ]
机构：
[1] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
[2] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China
[3] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2016年 / 220卷
基金：
中国国家自然科学基金;
关键词：
Q235; steel; Ionic liquid; Acid corrosion; XPS; Passive film; CORROSION INHIBITION; IRON; XPS; TEMPERATURE; ANIONS;
D O I：
10.1016/j.molliq.2016.04.053
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Bronsted acid ionic liquid (BAIL) 3-methyl-1-(4-sulfonic acid) butyl imidazolium bisulfate, a promising acid catalyst instead of conventional acid, was investigated with respect to the corrosion ability to Q235 steel. A wide passive range could be observed by electrochemical tests even when increasing temperature or diluting IL with water. The corrosion morphology and elemental compositions of the corroded surface were studied by SEM-EDX, XPS depth profiling and its possible electrochemical passivation mechanism was proposed. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：63 / 70
页数：8
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