Crystallization behavior and hydrogen storage kinetics of amorphous Mg11Y2Ni2 alloy

被引：39

作者：

Zhang, Q. A. ^{[1
]}

Zhang, L. X. ^{[1
]}

Wang, Q. Q. ^{[1
]}

机构：

[1] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Anhui, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 551卷

基金：

中国国家自然科学基金;

关键词：

Amorphous Mg-based alloy; Melt-spinning; Crystallization behavior; Hydrogen storage; X-RAY-DIFFRACTION; IN-SITU SYNCHROTRON; HYDRIDING COMBUSTION SYNTHESIS; MELT-SPUN; DESORPTION-KINETICS; INTERMETALLIC COMPOUND; CRYSTAL-STRUCTURE; MG; NI; MICROSTRUCTURE;

D O I：

10.1016/j.jallcom.2012.11.046

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 crystallization behavior and hydrogen storage kinetics of the amorphous Mg11Y2Ni2 alloy prepared by melt-spinning technique were investigated in detail. It was found that the amorphous Mg11Y2Ni2 alloy transforms into the crystalline Mg11Y2Ni2 in metastable state at 279 degrees C and subsequently decomposes into Mg, YMgNi4 and Y(Mg) solid solution in stable state at 366 degrees C. All the amorphous, metastable and stable Mg11Y2Ni2 alloys can be hydrogenated into MgH2, Mg2NiH4 and YH2/YH3. However, the stable Mg11Y2Ni2 alloy has slightly slower hydrogen absorption-desorption kinetics due to the worse dispersivity of YH2/YH3 and Mg2NiH4. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：376 / 381

页数：6

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