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Crystals 2018, 8(2), 94;

Mg2FeH6 Synthesis Efficiency Map

Faculty of New Technologies and Chemistry, Military University of Technology, Warsaw 01-476, Poland
Author to whom correspondence should be addressed.
Received: 19 January 2018 / Revised: 5 February 2018 / Accepted: 7 February 2018 / Published: 11 February 2018
(This article belongs to the Special Issue Properties and Applications of Novel Light Metal Hydrides)
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The influences of the processing parameters on the Mg2FeH6 synthesis yield were studied. Mixtures of magnesium hydride (MgH2) and iron (Fe) were mechanically milled in a planetary ball mill under argon for 0.5-, 1-, 2- and 3-h periods and subsequently sintered at temperatures from 300–500 C under hydrogen. The reaction yield, phase content and hydrogen storage properties of the received materials were investigated. The morphologies of the powders after synthesis were studied by SEM. The synthesis effectiveness map was presented. The obtained results prove that synthesis parameters, such as the milling time and synthesis temperature, greatly influence the reaction yield and material properties and show that extended mechanical milling may not be beneficial to the reaction efficiency. View Full-Text
Keywords: hydrogen storage; magnesium-iron hydride; synthesis; ball milling; Mg2FeH6; heat storage hydrogen storage; magnesium-iron hydride; synthesis; ball milling; Mg2FeH6; heat storage

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Witek, K.; Karczewski, K.; Karpowicz, M.; Polanski, M. Mg2FeH6 Synthesis Efficiency Map. Crystals 2018, 8, 94.

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