Published December 1979 | Version v1
Journal article

Group 3A and 4A substituted AB5 hydrides

  • 1. Argonne National Lab., IL

Description

Crystallographic cell volume data are presented for a series of alloys LaNi/sub 5-x/M/sub x/(M = Al, Ga, In, Si, Ge, Sn) for x = 0 to 0.5. Pressure-composition desorption isotherms were measured for the hydrides of LaNi46Si04 and LaNi46Ge04 at 30, 40, and 600C. From plots of ln P vs. 1/T the enthalpies and entropies of transition were calculated to be -8.5 kcal/mol of H2 and -27.3 cal/(mol of H2 deg) for LaNi46Si04H/sub y/ and -8.2 kcal/mol of H2 and -26.5 cal/(mol of H2 deg) for LaNi46Ge04H/sub y/. The thermodynamic quantities as well as the hysteresis behavior of these hydrides are compared to data previously obtained for the hydrides of LaNi46Al04, LaNi46Ga04, LaNi46In04, and LaNi46Sn04

Additional details

Publishing Information

Journal Title
Inorg. Chem.
Journal Volume
18
Journal Issue
12
Series
Inorg. Chem.
Journal Page Range
3343-3345
ISSN
0020-1669