Journal
CRYSTALS
Volume 8, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/cryst8020094
Keywords
hydrogen storage; magnesium-iron hydride; synthesis; ball milling; Mg2FeH6; heat storage
Funding
- Polish Ministry of Science and Higher Education, Ministry of Science and Higher Education-Project Iuventus PLUS [IP2012 007272]
- National Center for Research and Development [LIDER/482/L-6/14/NCBR/2015]
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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 degrees 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.
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