CATALYTIC EFFECT OF PD ON HYDROGEN ABSORPTION IN MECHANICALLY ALLOYED MG2NI, LANI5 AND FETI

被引：218

作者：

ZALUSKI, L ^{[1
]}

ZALUSKA, A ^{[1
]}

TESSIER, P ^{[1
]}

STROMOLSEN, JO ^{[1
]}

SCHULZ, R ^{[1
]}

机构：

[1] INST RECH HYDRO QUEBEC,IREQ,VARENNES,PQ J3X 1S1,CANADA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 217卷 / 02期

关键词：

PALLADIUM CATALYSIS; HYDROGEN ABSORPTION; MECHANICAL ALLOYING; BALL MILLING;

D O I：

10.1016/0925-8388(94)01358-6

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：

In this paper we present the effect of palladium catalysis on the surface activity of nanocrystalline materials. Three classic hydrogen-absorbing alloys, Mg2Ni, LaNi5 and FeTi, were prepared in a nanocrystalline state by ball milling and modified by the addition of small amounts of Pd (less than 1 wt.%). This modification gave powders able to absorb hydrogen at room temperature in the as-produced state, with no need for any activation. Hydrogen absorption characteristics for the nanocrystalline Mg2Ni, LaNi5 and FeTi were enhanced: the absorption rates were much faster, even at lower temperatures.

引用

页码：295 / 300

页数：6

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