Prediction of hydrogen desorption performance of Mg2Ni hydride reactors

An optimization study on the finned tube heat exchanger used in hydride hydrogen storage system – analytical method and numerical simulation

“…1a, which has the same dimensions as presented in Refs. [17,32], i.e. fin thickness is 4.0 mm, fin spacing distance of 4.0 mm and fin length of 1.0 cm.…”

The effect of high-pressure torsion on the microstructure and hydrogen absorption kinetics of ball-milled Mg70Ni30

“…Mg 2 Ni and MgNi 2 , however, from the standpoint of hydrogen storage only the former possesses significant gravimetric hydrogen capacity of 3.62 wt.% [14]. BM of Mg + Ni powders from elemental powders results in impressive improvement of the hydrogen sorption kinetics [15][16][17]. It has recently been found that the static value of absorbed hydrogen under isothermal conditions of BM-Mg 2 Ni can further be improved during a dynamic milling process due to local structural changes and temperature rise [18,19].…”

Synthesis and hydrogen storage properties of Mg–La–Al nanoparticles

“…It is known that hydrogen storages via solid state materials have the potential advantages of high storage capacity and safety [1]. So far, many kinds of hydrogen storage materials have been developed, including LaNi 5 [2], Mg 2 Ni [3], alanates [4], amides [5], carbon nanotubes [6] and metal-organic frameworks [7]. Among the metal hydrides, MgH 2 is still the most attractive one because of its high theoretical gravimetric capacity of 7.6 wt.%, abundance and low cost.…”

“…Among alloying elements, Al is known as one of the most attractive candidates to decrease the stability of magnesium hydride [9e12]. The MgeAl binary system contains several stable intermetallic phases, such as b-Mg 2 Al 3 , ReMg 42 Al 58 and g-Mg 17 Al 12 [13], whose hydrogen storage capacities are 3.02, 3.17 and 4.44 wt.%, respectively [14]. It has been observed that the hydrogen sorption kinetics of Mg was significantly improved with Al addition, and the enthalpy of hydrogenation was decreased upon alloying with Al as the result of the endothermic disproportionation reactions of MgeAl intermetallic compounds [14,15].…”