Effect of Big-Cube Zr2Ni on the Absorption and Desorption Kinetics of Nanocrystalline MgH2 Powders

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A new hydrogen storage system of nanocomposite MgH2/10 wt.% big-cube Zr2Ni nanocrystalline powders were synthesized. A -MgH2 phase coexisted with small mole fractions of -MgH2 nanocrystalline ultrafine powders were obtained after reactive ball milling (RBM) technique of pure Mg powders of metallic Mg powders under a pressure of 50 bar of hydrogen gas. Mechanical alloying technique, using a high-energy ball milling was employed to fabricate big-cube phase of Zr2Ni nanocrystalline powders starting from tetragonal-Zr2Ni phase prepared by arc melting technique. The effect of adding 10 wt.% of the big-cube phase on the absorption/desorption kinetics of MgH2 powders was investigated.

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Journal: TechConnect Briefs
Volume: 2, Materials for Energy, Efficiency and Sustainability: TechConnect Briefs 2015
Published: June 14, 2015
Pages: 103 - 106
Industry sector: Advanced Materials & Manufacturing
Topic: Catalysis
ISBN: 978-1-4987-4728-8