Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte

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	Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte; Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte
	X. T. Chang; J. M. Wang; H. B. Shao; J. B. Wang; X. X. Zeng; J. Q. Zhang; C. N. Cao
	2008 ; 2008
发表期刊	Acta Physico-Chimica Sinica ; Acta Physico-Chimica Sinica
ISSN	1000-6818 ; 1000-6818
卷号	24 期号:9 页码:1620-1624
摘要	The corrosion and anodic dissolution behaviors of pure aluminum in Na2SnO3-containing 4 mol . L-1 KOH methanol-water mixed solutions with a methanol/water volume ratio of 4:1 were investigated. This was carried out by means of hydrogen collection, polarization curve, galvanostatic discharge, scanning electron microscopy (SEM), and energy dispersive analysis of X-ray (EDAX). The experimental results indicated that the addition of stannate inhibited the corrosion of aluminum in the 4 mol . L-1 KOH methanol-water solutions by the deposition of tin with a higher hydrogen evolution overpotential on the electrode surface. In the electrolytes with higher stannate contents the inhibiting effect decreased because of the occurrence of some cracks on the tin deposition film. The results of galvanostatic discharge showed that the discharge of aluminum in the Na2SnO3-containing 4 mol . L-1 KOH methanol-water solutions were obviously improved. In addition, the improvement effect enhanced with the increase of stannate content. It was noted that the aluminum anode showed a very flat discharge plateau at relatively low potentials in the electrolyte with 10.0 mmol . L-1 Na2SnO3 at 20 mA . cm(-2) discharge current density.; The corrosion and anodic dissolution behaviors of pure aluminum in Na2SnO3-containing 4 mol . L-1 KOH methanol-water mixed solutions with a methanol/water volume ratio of 4:1 were investigated. This was carried out by means of hydrogen collection, polarization curve, galvanostatic discharge, scanning electron microscopy (SEM), and energy dispersive analysis of X-ray (EDAX). The experimental results indicated that the addition of stannate inhibited the corrosion of aluminum in the 4 mol . L-1 KOH methanol-water solutions by the deposition of tin with a higher hydrogen evolution overpotential on the electrode surface. In the electrolytes with higher stannate contents the inhibiting effect decreased because of the occurrence of some cracks on the tin deposition film. The results of galvanostatic discharge showed that the discharge of aluminum in the Na2SnO3-containing 4 mol . L-1 KOH methanol-water solutions were obviously improved. In addition, the improvement effect enhanced with the increase of stannate content. It was noted that the aluminum anode showed a very flat discharge plateau at relatively low potentials in the electrolyte with 10.0 mmol . L-1 Na2SnO3 at 20 mA . cm(-2) discharge current density.
部门归属	[chang xiao-tu; wang jian-ming; shao hai-bo; wang jun-bo; zeng xiao-xu; zhang jian-qing; cao chu-nan] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [cao chu-nan] chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;wjm@zju.edu.cn ; [chang xiao-tu; wang jian-ming; shao hai-bo; wang jun-bo; zeng xiao-xu; zhang jian-qing; cao chu-nan] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [cao chu-nan] chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;wjm@zju.edu.cn
关键词	Aluminum Aluminum Corrosion Corrosion Stannate Stannate Discharge Discharge Koh Methanol-water Mixed Koh Methanol-water Mixed Solution Solution Electrochemical-behavior Electrochemical-behavior Energy-storage Energy-storage Air Batteries Air Batteries Alloy Anodes Alloy Anodes Dissolution Dissolution Inhibition Inhibition Conversion Conversion Oxide Oxide Zinc Zinc
URL	查看原文 ; 查看原文
WOS记录号	WOS:000259521300016 ; WOS:000259521300016
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32658
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. T. Chang,J. M. Wang,H. B. Shao,et al. Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte, Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte[J]. Acta Physico-Chimica Sinica, Acta Physico-Chimica Sinica,2008, 2008,24, 24(9):1620-1624, 1620-1624.
APA	X. T. Chang.,J. M. Wang.,H. B. Shao.,J. B. Wang.,X. X. Zeng.,...&C. N. Cao.(2008).Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte.Acta Physico-Chimica Sinica,24(9),1620-1624.
MLA	X. T. Chang,et al."Corrosion and anodic behaviors of pure aluminum in a novel alkaline electrolyte".Acta Physico-Chimica Sinica 24.9(2008):1620-1624.