Complex aluminum hydrides have been considered promising
materials for reversible hydrogen storage, since it was
found that transition-metal dopants can considerably lower
kinetic barriers for both hydrogen absorption and desorption.1
Of the light representatives of alkaline-earth-metal tetrahydroaluminates,
or alanates, magnesium tetrahydroaluminate
was investigated recently with respect to hydrogen storage
purposes, and its structure was determined.2,3 However, little
is known about calcium tetrahydroaluminate, which contains
7.9 wt % hydrogen and has not yet been investigated as a
material for hydrogen storage.
Complex aluminum hydrides have been considered promisingmaterials for reversible hydrogen storage, since it wasfound that transition-metal dopants can considerably lowerkinetic barriers for both hydrogen absorption and desorption.1Of the light representatives of alkaline-earth-metal tetrahydroaluminates,or alanates, magnesium tetrahydroaluminatewas investigated recently with respect to hydrogen storagepurposes, and its structure was determined.2,3 However, littleis known about calcium tetrahydroaluminate, which contains7.9 wt % hydrogen and has not yet been investigated as amaterial for hydrogen storage.
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