摘要
综述了对Mg-Ni系储氢合金进行元素取代改性的最新研究进展,分析了Mg-Ni系储氢合金A、B两侧元素的构成,并分别按Mg-Ni系中A、B两侧元素的性质,讨论了这些元素部分取代A_2B型Mg_2Ni和AB型MgNi合金中的Mg和Ni对Mg-Ni系合金储氢性能的影响。对近年来研究的多元Mg基储氢合金的充放氢性能和电化学性能进行了系统的阐述,总结了取代元素在降低Mg-Ni系储氢合金的氢化物生成热和放氢温度、提高合金电极循环寿命时的作用。
Recent progress of element partial substitution to improve properties of Mg-Ni-based hydrogen storage alloys is reported. The constitutions of elements A and B in these alloys are analyzed. The effect of these elements' partial substitution of Mg and Ni in A_2B-type Mg_2Ni and AB-type MgNi alloys on the hydrogen storage properties of Mg-Ni-based alloys is discussed respectively according to the characteristics of element A and B in Mg-Ni-system. The hydrogenating and dehydrogenating properties and electrochemical properties of multielement Mg-based hydrogen storage alloys studied in recent years are expatiated systematically. The effects of partial substitutive elements on decreasing of the enthalpies of hydrides formation and dehydrogenating temperatures of Mg-Ni-based hydrogen storage alloys, improvement of cyclic life of alloy electrodes are summarized.
出处
《材料导报》
EI
CAS
CSCD
2004年第12期29-33,共5页
Materials Reports
基金
重庆市应用基础研究项目(7941)
重庆大学基础及应用基础研究项目(713411003)
关键词
储氢合金
NI合金
MG2NI
储氢性能
生成热
氢化物
取代
改性
降低
研究
Mg-Ni-based hydrogen storage alloy
Mg-Ni-based hydrogen storage electrode
hydrogenating and dehydrogenating properties
electrochemical properties
