Dynamic measurement of hydrogen storage/release properties using tapered element oscillating microbalance for Mg doped with nano-sized Pd catalyst

Hydrogen storage is one of the key enabling technologies for the advancement of hydrogen power systems, such as fuel cells, in transportation, stationary, and portable applications. Hydrogen storage/release properties of Mg- and Pd-doped magnesium were studied. The rate of hydrogen release for Pd-doped magnesium hydride was much faster than that for the un-doped magnesium hydride, which is in consistent with that of measured by volumetric method. While the Pd-doped magnesium readily released hydrogen, the un-doped magnesium needed 5 min of incubation time before it released hydrogen. At 10 min, the magnesium hydride and Pd-doped magnesium hydride released 0.76 wt % and 4.03 wt % hydrogen, respectively.