Al-substituted alpha-nickel hydroxide prepared by homogeneous precipitation method with urea

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	Al-substituted alpha-nickel hydroxide prepared by homogeneous precipitation method with urea
	Y. L. Zhao; J. M. Wang; H. Chen; T. Pan; J. Q. Zhang; C. N. Cao
	2004
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	29 期号:8 页码:889-896
摘要	Al-substituted alpha-nickel hydroxide was prepared by homogeneous precipitation from nickel nitrate solution in the presence of urea. The experimental results of XRD and FTIR show that the Ni(OH)(2) samples prepared by this method are typical a-phase. The 0% Al-containing alpha-Ni(OH)(2) is labile in alkaline media and easily converted to beta-Ni(OH)(2). The stability of the samples increases with increase in Al content. The SEM results show that the 0% Al-containing sample contain spherical particles with some degree of agglomeration, while the 16.8% Al-containing sample displays an irregular shape. The galvanostatic charge-discharge experiments show that the discharge potential of Al-substituted alpha-Ni(OH)(2) increases with increase in Al content. However, the maximum discharge capacities decrease slightly with increasing Al content at the 0.1 C rate. The Al-substituted alpha-Ni(OH)(2) samples have better activation performance than the 0% Al-containing sample at the 0.1 C rate. At the 1.0 C rate, the 19.5% Al-containing sample has the highest discharge capacity and relatively better cycle stability. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
部门归属	zhejiang univ, dept chem, hangzhou 310027, peoples r china. chinese state key lab corros & protect, shenyang 110015, peoples r china.;wang, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;cncao@sun.zju.edu.cn
关键词	Homogeneous Precipitation Urea Al-substituted Alpha-nickel Hydroxide Electrochemical Performance Phase Structure Alkaline Secondary Cells Electrode Material Beta-ni(Oh)(2) Performance Batteries
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35747
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. L. Zhao,J. M. Wang,H. Chen,et al. Al-substituted alpha-nickel hydroxide prepared by homogeneous precipitation method with urea[J]. International Journal of Hydrogen Energy,2004,29(8):889-896.
APA	Y. L. Zhao,J. M. Wang,H. Chen,T. Pan,J. Q. Zhang,&C. N. Cao.(2004).Al-substituted alpha-nickel hydroxide prepared by homogeneous precipitation method with urea.International Journal of Hydrogen Energy,29(8),889-896.
MLA	Y. L. Zhao,et al."Al-substituted alpha-nickel hydroxide prepared by homogeneous precipitation method with urea".International Journal of Hydrogen Energy 29.8(2004):889-896.