A study of the LiNH2-MgH2 system for solid state hydrogen storage

被引：32

作者：

Barison, S. ^{[1
]}

Agresti, F. ^{[1
]}

Lo Russo, S. ^{[2
,3
]}

Maddalena, A. ^{[1
]}

Palade, P. ^{[1
,4
]}

Principi, G. ^{[1
]}

Torzo, G. ^{[5
,6
]}

机构：

[1] Univ Padua, Dipartimento Ingn Meccan, Settore Mat & CNISM, I-35131 Padua, Italy

[2] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[3] Univ Padua, CNISM, I-35131 Padua, Italy

[4] Natl Inst Mat Phys, Bucharest 077125, Romania

[5] Univ Padua, ICIS CNR, I-35131 Padua, Italy

[6] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 459卷 / 1-2期

关键词：

hydrogen storage; amides; metal hydrides; high energy ball milling;

D O I：

10.1016/j.jallcom.2007.04.278

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 influence of different high energy milling times and of the addition of catalysts such as Nb2O5, TiCl3 and graphite on the hydrogen absorption/desorption (AID) kinetics of a mixture of 2LiNH(2) + 1.1MgH(2) has been studied in the temperature range 220-240 degrees C. It is found that a prolonged milling time is effective in improving the A/D kinetics, irrespective of the presence or not of any kind of tested additive. The enthalpy of decomposition reaction results to be about 40.4 kJ/mol, as derived from van't Hoff plot using the values of the plateau pressures measured in desorption mode. This thermodynamic parameter fits well with the current literature data. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：343 / 347

页数：5

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