The effect of SiO2 and Al2O3 coating on the surface of TiH2 powders on gas release.

TiH(2) particles coated with binary Al(2)O(3) and SiO(2) layers were prepared, and the effect of the coating layer on gas release characteristics was investigated. The results show that homogeneous and compact coating layers of SiO(2)/Al(2)O(3) on the surfaces of TiH(2) particles can efficiently delay the starting time of hydrogen release from TiH(2) powders to approximately 120 s.