NMR-STUDIES OF HYDROGEN DIFFUSION IN BETA-LANI5-YALY HYDRIDES

被引:56
作者
BOWMAN, RC [1 ]
GRUEN, DM [1 ]
MENDELSOHN, MH [1 ]
机构
[1] ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439
关键词
D O I
10.1016/0038-1098(79)90362-4
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Proton relaxation times have been measured in β-phase LaNi5-yAlyHx, where 0<y<1.2, to determine the role of Al on hydrogen diffusion. Al substitution significantly increases the observed activation energy with a corresponding 100-fold decrease in the room temperature (300K) diffusion constant between y=0 and y=1.2. Comparisons are also made with previous studies of β-LaNi5Hx and possible diffusion mechanisms are suggested. © 1979.
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页码:501 / 506
页数:6
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