ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A good method to store hydrogen is in it atomic form in crystalline structure of metals atlow pressure. Thanks to magnesium’s high hydrogen storage capacity, its low weight and its highnatural abundance, it is an attractive material to develop hydrogen solid state storage. Theproduction of Mg-based nanocomposites can enhance the kinetics of H-sorption of magnesium andthe temperature of release of hydrogen. Transition metals as iron, which have important catalyticactivity in hydrogen reactions with Mg, and the surface protective compound MgF2, are interestingadditions for magnesium mixtures for hydrogen storage. In this work, Mg-based nanocompositescontaining Fe and MgF2 were produced by reactive milling under hydrogen using the addition ofFeF3, or directly MgF2 and Fe. The efficiency of centrifugal and planetary mill in MgH2 synthesiswas compared. The phase evolution during different milling times (from 1 to 96 h) using theplanetary was investigated. The different H-desorption behavior of selected milled mixtures wasstudied and associated with the different present phases in each case
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.570.39.pdf
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