Abstract
Magnesium hydride has been studied extensively
for applications as a hydrogen storage material
owing to the favourable cost and high gravimetric and
volumetric hydrogen densities. However, its high enthalpy
of decomposition necessitates high working temperatures
for hydrogen desorption while the slow rates for some
processes such as hydrogen diffusion through the bulk
create challenges for large-scale implementation. The
present paper reviews fundamentals of the Mg–H system
and looks at the recent advances in the optimisation of
magnesium hydride as a hydrogen storage material through
the use of catalytic additives, incorporation of defects and
an understanding of the rate-limiting processes during
absorption and desorption.
for applications as a hydrogen storage material
owing to the favourable cost and high gravimetric and
volumetric hydrogen densities. However, its high enthalpy
of decomposition necessitates high working temperatures
for hydrogen desorption while the slow rates for some
processes such as hydrogen diffusion through the bulk
create challenges for large-scale implementation. The
present paper reviews fundamentals of the Mg–H system
and looks at the recent advances in the optimisation of
magnesium hydride as a hydrogen storage material through
the use of catalytic additives, incorporation of defects and
an understanding of the rate-limiting processes during
absorption and desorption.
| Original language | English |
|---|---|
| Article number | 97 |
| Number of pages | 20 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 122 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Feb 2016 |