Improved dehydrogenation performances of TiB2-doped sodium alanate

► A dramatic enhancement in dehydrogenation kinetics of NaAlH4 was achieved by adding TiB2. ► The onset dehydrogenation temperature of TiB2-doped NaAlH4 was lowered to about 75 °C. ► TiB2-doped NaAlH4 desorbed 3.60 wt.% H2 for 1 h and 5.21 wt.% H2 for 4 h at 190 °C.