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

TiH2 particles coated with binary Al2O3 and SiO2 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 SiO2/Al2O3 on the surfaces of TiH2 particles can efficiently delay the starting time of hydrogen release from TiH2 powders to approximately 120 s.