Conferences

Magnesium Composites with Additions of Oxygen-Stabilized η-Zr4Fe2O0,5 for Effective Hydrogen Accumulation

V.V.Berezovets,
 
R.V.Denis,
 
I.Yu.Zavalii,
 
V.Paul-Boncour
 

Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #05/06
http://www.materials.kiev.ua/article/1232

Abstract

The advantages of reactive ball milling for preparation of new efficient Mg-based hydrogen storage materials are discussed. Mg-based nanocomposites were synthesized with additions of the η-Zr4Fe2O0,5 intermetallic compound, which is characterized by enhanced resistance to disproportionation in hydrogen and can prolong the cyclic life of materials. The improvement of hydrogen absorption parameters for Mg–intermetallic compound composites was observed. It was shown that fourfold increase of the reaction rate during mechanochemical synthesis of MgH2 and decrease of hydrogen desorption temperature by 80 °C were caused by catalytic additions.


COMPOSITE, HYDRIDE, HYDROGEN, MAGNESIUM, MECHANOCHEMICAL SYNTHESIS