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
	2010
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	121 期号:3 页码:459-464
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.
部门归属	[zeng, x. x.; wang, j. m.; wang, q. l.; kong, d. s.; shao, h. b.; zhang, j. q.; cao, c. n.] zhejiang univ, dept chem, hangzhou 310027, zhejiang, peoples r china. [zhang, j. q.; cao, c. n.] chinese acad sci, state key lab corros & protect met, inst met res, shenyang 110016, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, zheda rd 38, hangzhou 310027, zhejiang, peoples r china;wjm@zju.edu.cn
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
URL	查看原文
WOS记录号	WOS:000278149700011
引用统计	被引频次：47[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/321006/31673
专题	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.