The influence of the milling time on the yield of Mg2FeH6 from a two-step synthesis conducted in a custom-made reactor
2013
Abstract Dimagnesium iron hydride was synthesized by mechanical milling of a MgH 2 /Fe mixture followed by sintering under a high hydrogen pressure (120 bar). The influence of the milling time on the synthesis yield was observed. Properly chosen processing parameters led to a 94–97 % reaction yield (depending on the measurement method) for the formation of Mg 2 FeH 6 . Milling times that were too short or too long proved to be ineffective. A custom-made reactor for synthesis of a batch of up to 20 g is presented. Synthesized samples were characterized by XRD analysis and PCT measurements were performed.
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