Hydrogen storage properties of ball milled MgH₂ powders doped with abrasive powders of selected metal oxides, carbides and intermetallic compounds.

Catalyst	Hydrogenation/dehydrogenation properties	Ref.
10 wt% MG-Ti2Ni	Absorption/5.7 wt% H2/10 bar/225 °C/400 s, desorption/5.7 wt% H2/200 mbar/225 °C/400 s, cycle-life-time: 30 h (84 cycles)	Present work
5 wt% Nb2O5	Absorption/5.2 wt% H2/10 bar/300 °C/400 s,dDesorption/6 wt% H2/0.1 kPa/300 °C/400 s	32
10 wt% Nb2O5	Absorption/5.8 wt% H2/5 bar/300 °C/30 min, desorption/5.8 wt% H2/0.1 bar/300 °C/350 min	33
10 wt% Nb2O5	Absorption/5.0 wt% H2/10 bar/225 °C/1200 s, desorption/5.0 wt% H2/0.02 bar/225 °C/700 s	34
10 wt% Al2O3	Absorption/4.09 wt% H2/15 bar/300 °C/110 min, desorption/NA	35
10 wt% Al2O3	Absorption/4.22 wt% H2/12 bar/320 °C/10 min/max storage capacity: 5.2 wt%, desorption/NA	36
15 wt% VNbO5	Absorption/5.5 wt% H2/20 bar/160 °C/10 min, absorption/desorption 50 cycles/275 °C	37
10 wt% SiC	Absorption/3.7 wt% H2/10 bar/350 °C/140 s, desorption/2.5 wt% H2/0.02 bar/350 °C/2000 s	38
10 wt% V0.75Ti0.05Cr0.20	Absorption/3 wt% H2/1 bar/25 °C/75 min/max storage capacity: 6.1 wt%, desorption/5.5 wt% H2/0.01 bar/240 °C/5 min	39
14 wt% TiAl	Absorption/4 wt% H2/1 bar/25 °C/100 min/max storage capacity: 5 wt%, desorption/4 wt% H2/0.1 bar/240 °C/7 min	40
7 wt% Mn3.6Ti2.4	Absorption/5.3 wt% H2/10 bar/275 °C/2 min, desorption/5.3 wt% H2/0.02 bar/275 °C/8 min, cycle-life-time: 1400 h (1000 cycles)	41
10 wt% ZrNi5	Absorption/5.3 wt% H2/10 bar/275 °C/1 min, desorption/5.3 wt% H2/0.02 bar/275 °C/12 min, cycle-life-time: 568 h (600 cycles)	42
10 wt% big-cube Zr2Ni	Absorption/5.1 wt% H2/10 bar/250 °C/100 s, desorption/5.1 wt% H2/0.02 bar/250 °C/613 s, cycle-life-time: 1250 h (2546 cycles)	43