HYDROGEN SORPTION PROPERTIES OF SOME AB2 LAVES PHASE-COMPOUNDS

被引：91

作者：

JACOB, I

SHALTIEL, D

机构：

[1] Racah Institute of Physics, The Hebrew University of Jerusalem

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 65卷 / 01期

关键词：

D O I：

10.1016/0022-5088(79)90158-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hydrogen sorption properties of the hydrides of the Laves phase compounds GdB2 (B=Mn, Fe, Co, Ni, Rh, Ru) and LaRh2 have been studied at various temperatures in the pressure range up to 20 atm. Hydrogen absorption in LaB2 (B=Ru, Pt, Ir, Al) and GdB2 (B=Ir, Al) was measured in the pressure range up to 70 atm. A model that calculates the prefered interstitial sites occupied by the hydrogen is presented for the AB2 compounds. A gradual decrease of the hydrogen absorption capacity is observed for the GdNi2 and GdCo2 compounds after several absorption-desorption cycles. The hydrogen-cycled GdRh2 exhibited a change in its thermodynamic properties. © 1979.

引用

页码：117 / 128

页数：12

共 21 条

[11] ELECTRONEGATIVITY PARAMETER FOR TRANSITION-METALS - HEAT OF FORMATION AND CHARGE-TRANSFER IN ALLOYS [J].