Study of the hydrogenation/dehydrogenation process in the Mg-Ni-C-Al system

被引：12
|
作者：
Palumbo, O. [1 ,2 ]
Trequattrini, F. [3 ]
Vitucci, F. M. [1 ]
Bianchin, A. [4 ]
Paolone, A. [1 ,2 ]
机构：
[1] UOS La Sapienza, CNR, ISC, I-00185 Rome, Italy
[2] Univ Roma La Sapienza, Res Ctr Hydroeco, I-00161 Rome, Italy
[3] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy
[4] DMBN Nanomat SpA, I-31040 Vascon Di Carbonera Tv, Italy
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 645卷
关键词：
Metals and alloys; Hydrogen absorbing materials; Mechanical alloying; Thermal analysis; STORAGE MATERIAL MG2NIH4; STATE HYDROGEN STORAGE; TEMPERATURE STRUCTURE; SORPTION PERFORMANCE; MAGNESIUM HYDRIDE; ALLOYS; TANK;
D O I：
10.1016/j.jallcom.2014.12.252
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 work we present a detailed study of the hydrogenation and dehydrogenation processes of a nanostructured Mg-Ni-C-Al mixture. The sample has been characterized by means of X-ray diffraction, concomitant thermogravimetric and differential scanning calorimetry measurements and pressure-composition isothermal analyses. The hydrogenation takes place in two steps and is compatible with the formation of MgH2 and Mg2NiH4. The enthalpy and the activation energy measured for the main hydrogen desorption are lower than those ones reported for magnesium hydride. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：S239 / S241
页数：3
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