Hydrogen desorption properties of MgH2 catalysed with NaNH2

被引：13
|
作者：
Milosevic, Sanja [1 ]
Milanovic, Igor [1 ]
Mamula, Bojana Paskas [1 ]
Dukic, Andelka [1 ]
Rajnovic, Dragan [3 ]
Pasquini, Luca [2 ]
Novakovic, Jasmina Grbovic [1 ]
机构：
[1] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 11000, Serbia
[2] Univ Bologna, Dept Phys & Astron, I-40127 Bologna, Italy
[3] Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 27期
关键词：
MgH2; NaNH2; catalyst; Mechanical milling; Cycling; Hydrogen storage; STORAGE PROPERTIES; HYDRIDE; LI;
D O I：
10.1016/j.ijhydene.2013.06.083
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：
To improve hydrogen desorption properties of MgH2, mechanical milling of MgH2 with low concentration (2 and 5%) of NaNH2 has been performed. Pre-milling of MgH2 for 10 h has been done and then six samples have been synthesised with different milling times from 15 to 60 min. Microstructural characterisation has been performed using X-ray diffraction (XRD), scanning electron microscopy (SEM) and laser scattering measurements (PSD), and correlated to desorption properties examined using Differential Scanning Calorimetry (DSC) and Hydrogen Sorption Analyser (HSA). Thermal analysis shows that desorption temperatures are shifted towards lower values. It also highlights the significance of milling time and additive concentration on desorption behaviour. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：12223 / 12229
页数：7
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