The first magnesium-chromium hydride synthesized by the gigapascal high-pressure technique

被引：34

作者：

Kyoi, D

Rönnebro, E

Kitamura, N

Ueda, A

Ito, M

Katsuyama, S

Sakai, T

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Proc, Suita, Osaka 5650871, Japan

[2] Natl Inst Adv Ind Sci & Technol AIST Kansai Ctr, Ikeda, Osaka 5638577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 361卷 / 1-2期

关键词：

high pressure; hydrogen; metal hydrides; magnesium; chromium;

D O I：

10.1016/S0925-8388(03)00431-6

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：

The occurrence of new magnesium-based ternary hydrides of chromium was investigated by using the gigapascal high-pressure thermal technique. Powders of MgH2 and Cr in the molar relation of 3:1 were compressed at a pressure up to 8 GPa by using a multi-anvil machine, and then heated to 873 K. The resultant samples were studied with X-ray powder diffraction and thermal desorption spectroscopy. A new phase, Mg3CrHx, was discovered under hydrogen pressure at 6-8 GPa. The hydrogen desorption was observed at around 598 K for the samples containing this new phase. (C) 2003 Elsevier B.V. All rights reserved.

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页码：252 / 256

页数：5

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