Recent advances on the thermal destabilization of Mg-based hydrogen storage materials

Abstract

Magnesium hydride and its compounds have a high hydrogen storage capacity and are inexpensive, and thus have been considered as one of the most promising hydrogen storage materials for on-board applications.

Hydrogen storage behavior of nanocrystalline and amorphous Mg–Ni–Cu–La alloys

“…[28][29][30] Besides the rare earths Nd and Y, La is also a commonly used alloying element in Mg-based alloys. [31][32][33] Moreover, compared with Nd and Y, La has a lighter atomic mass. Ren et al 34 partially replaced Mg with La in the Mg 2 Ni alloy and found that appropriate La content can improve the hydrogen storage properties of the Mg 2 Ni alloy in terms of hydrogen storage capacity and hydrogen desorption kinetics.…”

Challenges in the use of hydrogen for maritime applications

“…MgH 2 stores 7.7 wt% of hydrogen and roughly 110 g H 2 L À1 and releases it at a temperature of 300 1C. 144,145 Mg does have the advantage of being the fifth most abundant metal in the Earth's crust, which lowers the price for Mg based storage. One of the largest disadvantages of MgH 2 is the slow kinetics of the hydrogenation reaction: the formation of the hydride is a surface reaction, so a MgH 2 layer is formed first on the Mg metal fraction in the storage vessel.…”

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

“…Mg is an earth-abundant element with the 8 th crustal abundance order. Thus, Mg-based hydrogen storage materials are low-cost and have the potential for largescale production [14]. As clarified in the previous section, MgH 2 is an ionic compound, so it has a high formation enthalpy which is a thermodynamic problem hindering its practical application [15].…”