Thermodynamic and structural comparison between two potential metal-hydride battery materials LaNi3.55Mn0.4Al0.3Co0.75 and CeNi3.55Mn0.4Al0.3Co0.75

被引：28

作者：

Joubert, JM

Latroche, M

Percheron-Guegan, A

Bouree-Vigneron, F

机构：

[1] CNRS, Lab Chim Met Terres Rares, F-92195 Meudon, France

[2] CNRS, CE Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 275卷

关键词：

nickel metal hydride batteries; hydrides; neutron diffraction; mischmetal;

D O I：

10.1016/S0925-8388(98)00287-4

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 thermodynamic and structural properties of CeNi3.55Mn0.4Al0.3Co0.75, LaNi3.55Mn0.4Al0.3Co0.75 and their hydrides (deuterides) are compared. The isothermal curves have been measured. The lattice parameters and the occupancies of the various interstitial sites by deuterium have been determined by powder neutron diffraction. Differences between the two compounds as regards the hydrogen absorption are interpreted in terms of the different atomic radii of lanthanum and cerium. The evolution of the valence of cerium as a function of hydrogen content is discussed. (C) 1998 Elsevier Science S.A.

引用

页码：118 / 122

页数：5

共 12 条

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[2]

ACHARD JC, 1977, P 2 INT C HYDR MET P, P12

[3]

BUSCHOW KHJ, 1977, P INT C ROCH NEW YOR, P125

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