Energy and Ecology
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New findings in inorganic chemicals described from Chinese Academy of Science
October 8th, 2010
"To improve the dehydrogenation properties of MgH2, a novel hydrogen storage system, MgH2-Li3AlH6, is prepared by mechanochemical milling. Three physical mixtures containing different mole ratios (1:4, 1:1 and 4:1) of MgH2 and Li3AlH6 are studied and there exists a mutual destabilization effect between the components," researchers in People's Republic of China report.
"The last mixture shows a capacity of 6.5 wt% H-2 with the lowest starting temperature of dehydrogenation (170 degrees C). First, Li3AlH6 decomposes into Al, LiH and H-2, and then the as-formed Al can easily destabilize MgH2 to form the intermetallic compound Mg17Al12 at a temperature of 235 degrees C, which...
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Source: Energy and Ecology (2010-10-08)