El-Eskandarany M.S., Al-Matrouk H., Al-Duweesh A., Shaban Ehab
Kuwait Institute for Scientific Research, KISR, KW
Keywords: hydrogen storage materials, kinetics, MgH2-nanocrystalline materials, nanocomposite
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.
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