摘要
综述了最近几年稀土-镁-镍系贮氢合金电极的最新研究进展,主要包括合金材料的组成、制备方法、微观结构以及吸放氢动力学行为和电化学性能等方面的研究。发现复合体系的放电容量为此类合金中最大的,可达到1014mA.h.g-1。分析讨论了多元合金的复杂结构,各种替代元素对材料性能影响的原因。指出了稀土-镁-镍系贮氢合金的优缺点以及发展趋势。
This paper summarizes and describes the recent progress in study on RE--Mg--Ni hydrogen storage electrode materials, including composition, preparation, microstructure of materials, as well as hydrogen absorption/ desorption kinetics and electrochemical properties. The composite system has the highest discharge capacity （1014mA·h·g^-1 ）of this kind of alloys. The complex structures of materials and the reason of function influence which is due to the substitute of elements are analyzed and discussed. This paper points out the merits and shortcoming and the trend of the RE-Mg-Ni hydrogen storage electrode materials.
出处
《稀土》
EI
CAS
CSCD
北大核心
2007年第5期97-103,共7页
Chinese Rare Earths
关键词
稀土-镁-镍
贮氢合金
微观结构
电化学性能
RE-Mg-Ni materials
hydrogen storage alloys
microstructure
electrochemical properties
