Ammine aluminium borohydrides are promising materials for hydrogen storage but they have low hydrogen capacities and sluggish kinetics under moderate temperatures.
Now, by changing the coordination number of ammonia and adopting mixed cations, scientists in China have found an ammine aluminium borohydride that releases over 12wt% of pure hydrogen at 120oC. This is well above the minimum abundance of hydrogen required for on-board applications, they say.
Link to journal article
Ammine aluminum borohydrides: an appealing system releasing over 12 wt.% pure H2 under moderate temperature
Y Guo et al
Chem Commun., 2012, DOI: 10.1039/c2cc30751k
