Next Article in Journal
Fabrication and Mechanical Characterisation of Titanium Lattices with Graded Porosity
Previous Article in Journal
Crystallization of Supercooled Liquid Elements Induced by Superclusters Containing Magic Atom Numbers
Metals 2014, 4(3), 388-400; doi:10.3390/met4030388

Investigation of Effect of Milling Atmosphere and Starting Composition on Mg2FeH6 Formation

Hydrogen Research Institute, Université du Québec à Trois-Rivières, 3351, boul. des Forges, C.P. 50, Trois-Rivières (Québec) G9A 5H7, Canada
* Author to whom correspondence should be addressed.
Received: 17 July 2014 / Revised: 1 August 2014 / Accepted: 8 August 2014 / Published: 14 August 2014
View Full-Text   |   Download PDF [2734 KB, uploaded 14 August 2014]   |   Browse Figures


In this study we investigated the synthesis and the hydrogen storage properties of Mg2FeH6. The complex hydride was prepared by ball milling under argon and hydrogen atmosphere from 2Mg + Fe and 2MgH2 + Fe compositions. The samples were characterized by X-ray powder diffraction and scanning electron microcopy. Kinetics of hydrogen absorption and desorption were measured in a Sievert’s apparatus. We found that the milling atmosphere plays a more important role on Mg2FeH6 synthesis than the starting compositions. Ball milling under hydrogen pressure resulted in smaller particles sizes and doubled the yield of Mg2FeH6 formation. Despite the microstructural differences after ball milling, all samples had similar hydrogen absorption and desorption kinetics. Loss of capacity was observed after only five cycles of hydrogen absorption/desorption.
Keywords: metal hydride; Mg2FeH6; ball milling; hydrogen storage metal hydride; Mg2FeH6; ball milling; hydrogen storage
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
MDPI and ACS Style

Asselli, A.A.C.; Huot, J. Investigation of Effect of Milling Atmosphere and Starting Composition on Mg2FeH6 Formation. Metals 2014, 4, 388-400.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert