HYDROGENATION CHARACTERISTICS OF TI2NIOX COMPOUNDS (0 LESS-THAN-OR-EQUAL-TO X LESS-THAN 0.5)

被引：26

作者：

MINTZ, MH

HADARI, Z

DARIEL, MP

机构：

[1] BEN GURION UNIV NEGEV,DEPT MAT ENGN,BEER SHEVA 84120,ISRAEL

[2] BEN GURION UNIV NEGEV,DEPT NUCL ENGN,BEER SHEVA 84120,ISRAEL

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 63卷 / 02期

关键词：

D O I：

10.1016/0022-5088(79)90242-X

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 hydrogenation characteristics of Ti2NiOx compounds (0 ≤ x < 0.5) were investigated using combined TG-DTA techniques. The presence of oxygen in Ti2Ni affects the hydrogen uptake capacity, the stability of the hydrides and the phase transition behavior of the corresponding hydrogen-containing compounds. Oxygen atoms occupy some of the available hydrogen interstitial sites and also influence the electron concentration, and possibly they reduce the enthalpy of formation of the hydrides. The cooling rate affects the maximum hydrogen uptake at room temperature, with rapid cooling giving the highest hydrogen content. These rate effects are tentatively explained on the basis of a model involving two types of hydrogen-occupied interstitial sites. © 1979.

引用

页码：181 / 191

页数：11