The effects of surface treatment and stannate as an electrolyte additive on the corrosion and electrochemical performances of pure aluminum in an alkaline methanol-water solution

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	The effects of surface treatment and stannate as an electrolyte additive on the corrosion and electrochemical performances of pure aluminum in an alkaline methanol-water solution
	X. X. Zeng ; J. M. Wang ; Q. L. Wang ; D. S. Kong ; H. B. Shao ; J. Q. Zhang ; C. N. Cao
刊名	Materials Chemistry and Physics
	2010
卷号	121 期号:3 页码:459-464
关键词	Aluminum Corrosion Stannate treatment Alkaline methanol-water mixed solution Batteries conversion coatings energy-storage air batteries alloy anodes behavior dissolution oxide zinc
ISSN号	0254-0584
中文摘要	Pure aluminum electrodes were treated in alkaline stannate solutions, and the effects of some factors such as NaOH content and treating time were explored. The corrosion and electrochemical performances of the modified aluminum anodes in 4.0 M KOH methanol-water mixed solutions containing a methanol/water volume ratio of 7:3 (30% water) with and without stannate were investigated by means of hydrogen collection, polarization curve, galvanostatic discharge, scanning electron microscopy (SEM), and energy dispersive analysis of X-ray (EDAX). Metallic tin with high hydrogen evolution overpotential was deposited in aluminum surfaces by the modification treatments using stannate, resulting in the relatively low corrosion rate and markedly enhanced discharge performance of the modified aluminum anodes. In our experimental range the aluminum electrode treated in the solution with 0.1 M NaOH for 30 min showed lower corrosion rate and better discharge performance. The addition of Na(2)SnO(3) in 4.0 M KOH methanol-water mixed solutions with 30% water inhibited the corrosion of the aluminum electrodes modified in the treating solution with 0.1 M NaOH for 30 min, resulting from the deposition of tin with high hydrogen evolution overpotential in aluminum surfaces. The deposition of metallic tin on the electrode surface and the existence of stannate in the electrolytes were responsible for the notable enhancement in the discharge performance of the modified aluminum anode. (C) 2010 Elsevier B.V. All rights reserved.
原文出处	://WOS:000278149700011
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31673]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Zeng,J. M. Wang,Q. L. Wang,et al. The effects of surface treatment and stannate as an electrolyte additive on the corrosion and electrochemical performances of pure aluminum in an alkaline methanol-water solution[J]. Materials Chemistry and Physics,2010,121(3):459-464.
APA	X. X. Zeng.,J. M. Wang.,Q. L. Wang.,D. S. Kong.,H. B. Shao.,...&C. N. Cao.(2010).The effects of surface treatment and stannate as an electrolyte additive on the corrosion and electrochemical performances of pure aluminum in an alkaline methanol-water solution.Materials Chemistry and Physics,121(3),459-464.
MLA	X. X. Zeng,et al."The effects of surface treatment and stannate as an electrolyte additive on the corrosion and electrochemical performances of pure aluminum in an alkaline methanol-water solution".Materials Chemistry and Physics 121.3(2010):459-464.