Is the principle of hydrogen storage in lanthanum nickel alloy mechanical energy

Can lanthanum Penta-nickel store hydrogen at room temperature?

Lanthanum penta-nickel (LaNi 5) has been considered as potential candidates for hydrogen storage application at room temperature (20 °C). The intermetallic could store more than 1.36 mass % hydrogen. Substantially, work has been done on the hydrogenation–dehydrogenation kinetics and thermodynamics of LaNi 5.

Does lanthanum and samarium improve hydrogen storage performance?

The addition of rare earth elements lanthanum and samarium to Mg–Ni-type alloys enhanced the hydrogen absorption and desorption kinetics. The microstructures of these alloys were characterized by using XRD, SEM, TEM, HTREM, and SAED methods. PCT equipment was employed to test the hydrogen storage performance.

Does Lani 5 intermetallic retain hydrogen at room temperature?

In the current study, the thermodynamics and kinetics of hydrogenation–dehydrogenation of perfectly crystalline LaNi 5 intermetallic have been studied. The PCT has shown retention of about 0.3–0.5 mass% hydrogen at room temperature (25 °C).

What is the hydrogen storage property of the alloy?

The hydrogen storage property of the alloy has been investigated in the Sievert’s apparatus. The PCT at 0, 17, and 37 °C was obtained, and the results are presented in Fig. 3. The alloy has shown the hydrogen storage capacity above 1.75 mass % at all the temperatures as estimated from the PCT curve shown in Fig. 3.

Does lanthanum and samarium enhance hydrogen absorption and desorption kinetics?

The addition of rare earth elements lanthanum and samarium to Mg–Ni-type alloys enhanced the hydrogen absorption and desorption kinetics. The microstructures of these alloys were characterized by u...

How much hydrogen can a metallic intermetallic store?

The intermetallic could store more than 1.36 mass % hydrogen. Substantially, work has been done on the hydrogenation–dehydrogenation kinetics and thermodynamics of LaNi 5. It has been reported that the hydrogen storage capacity reduced after single activation due to the deep trap of hydrogen.