Energy storage material magnesium alloy

Are magnesium-based alloys a cost-efficient hydrogen storage material?

Magnesium-based alloys attract significant interest as cost-efficient hydrogen storage materials allowing the combination of high gravimetric storage capacity of hydrogen with fast rates of hydrogen uptake and release and pronounced destabilization of the metal–hydrogen bonding in comparison with binary Mg–H systems.

Can magnesium based alloys be used as hydrogen storage materials?

The integration of magnesium-based alloys with other hydrogen storage materials, such as metal hydrides and porous adsorbents, can also lead to the development of hybrid hydrogen storage systems with enhanced performance and flexibility.

Can magnesium based alloys be used for thermal energy storage?

Another potential application of magnesium-based alloys is in the field of thermal energy storage. The high enthalpy of hydride formation and the reversibility of the hydrogen absorption/desorption reactions make these alloys promising candidates for thermochemical heat storage systems .

Why are magnesium-based alloys a good choice for energy storage systems?

Moreover, the abundance and low cost of magnesium compared to other metals, such as lithium and cobalt, make magnesium-based alloys attractive for large-scale energy storage systems .

Why is the cyclic stability of magnesium based alloys important?

The cyclic stability of magnesium-based alloys is crucial for their long-term use as hydrogen storage materials. The repeated absorption/desorption of hydrogen can lead to the degradation of the alloy, resulting in a decrease in the hydrogen storage capacity and kinetic properties .

What are the thermodynamic properties of magnesium based alloys?

Table 2. Thermodynamic properties comparison of different magnesium-based alloy systems. Magnesium (Mg) has a high theoretical hydrogen storage capacity of 7.6 wt.% and forms a binary hydride, magnesium hydride (MgH 2), through a reversible solid–gas reaction [36, 37, 38].