Fast hydriding Mg-Zr-Mn-Ni alloy compositions for high capacity hydrogen storage application

被引：20

作者：

Bambhaniya, K. G. ^{[2
]}

Grewal, G. S. ^{[2
]}

Shrinet, V. ^{[2
]}

Singh, N. L. ^{[1
]}

Govindan, T. P. ^{[2
]}

机构：

[1] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Phys, Vadodara 390002, India

[2] Elect Res & Dev Assoc, Vadodara, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 04期

关键词：

Mechanical alloying; Pressure reduction techniques; Hydriding - dehydriding Kinetics; MAGNESIUM;

D O I：

10.1016/j.ijhydene.2011.04.099

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：

Hydrogen is one of the best alternative to petroleum as an energy carrier. However, the development of a Hydrogen-based economy requires commercialization of safe and cost-effective Hydrogen storage system. In this paper, alloys belonging to Mg-Zr-Mn-Ni alloy system are synthesized using high energy ball milling method. The particle size evolution, chemical analysis and nano-scaled structures were characterized by using SEM, EDXS and XRD techniques, respectively. The optimized - highest hydrogen storing - alloy has particle size of about 8.36 +/- 1.17 gm with crystallite size 16.99 +/- 5.48 nm. Hydrogen absorption-desorption measurement is carried out on the principle of pressure reduction method. The alloy coded with MZ1 shows uptake of greater than 7 mass % H-2 at a charging temperature of 200 degrees C, indicating high gravimetric hydrogen storage capacity at relatively lower hydriding temperature. The optimized Mg-Zr-Mn-Ni alloy also shows considerably enhanced hydriding - dehydriding kinetics, compare to pure Mg. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：3671 / 3676

页数：6

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