“…Ammonia borane (NH 3 BH 3 , AB) has received considerable interest as a hydrogen storage material owing to its high hydrogen content (19.5 wt %) and the ability to release hydrogen at low temperatures. When in contact with water, ammonia borane releases hydrogen according to Equation (9), which is accelerated in acidic conditions and by the use of metal catalysts [ 52 , 53 , 54 , 55 , 56 ]. Some work has been reported for hydrolysis of other metal hydrides or complex metal hydrides, e.g., LiH, MgH 2 , CaH 2 , LiBH 4 , KBH 4 and LiAlH 4 [ 57 , 58 , 59 , 60 , 61 , 62 , 63 ].…”