摘要
本文通过吸氢测试和ＸＰＳ等技术，研究了化学法制备的ＬａＮｉ５－ｘ－ｙＭｘＭｙ′型四元吸氢合金的结构、吸放氢性质、表面性质及其相互关系。这些合金有良好的表面性质，易活化，吸氢量较高。在Ｌａ－Ｎｉ－Ｃｏ－Ｍｎ系列中，氢化物稳定性与合金的晶胞体积之间存在近似的直线关系。
The structure and hydrogen absorbing characteristics of four new chemically prepared alloys of the type LaNi 5-x-y M xM y′(M=Co, Cu; M′=Mn; 0<x+y<5) were investigated. These alloys are easy to be activated, and have relatively high hydrogen capacity. A linear coorelation exists between the hydride stability and the cell volume of the La Ni Co Mn alloys. XPS studies on LaNi 4Co 0.5 Mn 0.5 indicated that metallic nickel and cobalt exist on the surface, which may be responsible for the good hydrogen absorbing activity.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1997年第1期73-76,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金
山东省青年自然科学基金
关键词
吸氢合金
镧镍系合金
XPS
吸氢性能
hydrogen absorbing alloy LaNi 5 based alloy hydride stability XPS
