Stability of aluminium in 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid and ethylene glycol mixtures

被引：23

作者：

Trombetta, Fernanda ^{[1
]}

de Souza, Roberto Fernando ^{[1
]}

de Souza, Michele Oberson ^{[1
]}

Borges, Caua Brum ^{[1
]}

Panno, Natalia F. ^{[1
]}

Agostini Martini, Emilse M. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Chem, BR-91501970 Porto Alegre, RS, Brazil

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 01期

关键词：

Aluminium; EIS; SEM; Anodic films; Passive films; LAYER CAPACITOR APPLICATIONS; CORROSION PROCESSES; OXIDE FILMS; ELECTROLYTES; SUPERCAPACITORS; PERFORMANCE; COMPOSITE; CELLS;

D O I：

10.1016/j.corsci.2010.09.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The stability of electrochemically passivity aluminium has been investigated in mixtures of ethylene glycol 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid Na2B4O7 10H(2)O and NaH2PO4 The effects of (i) borax and sodium dihydrogen phosphate salts presence (ii) water absorption and (iii) ethylene glycol content are studied by electrochemical impedance spectroscopy (EIS) The results show a decrease in the polarization resistance and an increase in the capacitance associated with the passive oxide dielectric properties with an Increase in the water and/or ethylene glycol content in the mixtures The presence of Na2B4O7 10H(2)O and NaH2PO4 salts stabilize the oxide layer (C) 2010 Elsevier Ltd All rights reserved

引用

页码：51 / 58

页数：8

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