The effects of polyethylene glycol (PEG) as an electrolyte additive on the corrosion behavior and electrochemical performances of pure aluminum in an alkaline zincate solution

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	The effects of polyethylene glycol (PEG) as an electrolyte additive on the corrosion behavior and electrochemical performances of pure aluminum in an alkaline zincate solution
	X. Y. Wang; J. M. Wang; Q. L. Wang; H. B. Shao; J. Q. Zhang
	2011
发表期刊	Materials and Corrosion-Werkstoffe Und Korrosion
ISSN	0947-5117
卷号	62 期号:12 页码:1149-1152
摘要	The effects of zinc oxide and/or polyethylene glycol (PEG) as electrolyte additives on the corrosion and electrochemical performances of pure aluminum in 4.0?M KOH solutions were investigated by means of hydrogen collection, polarization curve, galvanostatic discharge, scanning electron microscopy (SEM), and energy dispersive analysis of X-ray (EDAX). The addition of ZnO markedly inhibited the corrosion of aluminum in 4.0?M KOH solutions, resulting from the deposition of zinc with high hydrogen evolution overpotential in aluminum surfaces. The introduction of PEG in the alkaline zincate solution obviously improved the deposition of zinc by increase in the overpotential of zinc deposition, thus the corrosion rate of aluminum in the alkaline zincate solutions with PEG was further decreased. The enhancement effect of PEG on the inhibition of zinc oxide first increased and then decreased with increasing the content of PEG in the electrolyte. The electrolyte system with 0.2?M ZnO and 2.0?mM PEG presented the highest inhibition efficiency (98.8%) for the corrosion of aluminum. The results of galvanostatic discharge indicated that the aluminum anode shows excellent discharge performances in the 4.0?M KOH solution with 0.2?M ZnO and 2.0?mM PEG.
部门归属	[wang, x. y.; wang, j. m.; wang, q. l.; shao, h. b.; zhang, j. q.] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [wang, x. y.] binzhou med coll, yantai 264003, peoples r china. [zhang, j. q.] 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	Alkaline Solutions Aluminum Corrosion Polyethylene Glycol (Peg) Zinc Oxide Energy-storage Batteries Anode Inhibition Conversion Alloy Oxide
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WOS记录号	WOS:000298064000009
引用统计	被引频次：35[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/321006/30753
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Wang,J. M. Wang,Q. L. Wang,et al. The effects of polyethylene glycol (PEG) as an electrolyte additive on the corrosion behavior and electrochemical performances of pure aluminum in an alkaline zincate solution[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2011,62(12):1149-1152.
APA	X. Y. Wang,J. M. Wang,Q. L. Wang,H. B. Shao,&J. Q. Zhang.(2011).The effects of polyethylene glycol (PEG) as an electrolyte additive on the corrosion behavior and electrochemical performances of pure aluminum in an alkaline zincate solution.Materials and Corrosion-Werkstoffe Und Korrosion,62(12),1149-1152.
MLA	X. Y. Wang,et al."The effects of polyethylene glycol (PEG) as an electrolyte additive on the corrosion behavior and electrochemical performances of pure aluminum in an alkaline zincate solution".Materials and Corrosion-Werkstoffe Und Korrosion 62.12(2011):1149-1152.

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