A study of the magnetic properties of LaNi5 and their effect on hydrogen desorption under the action of a magnetostatic field

Abstract

A study of the magnetic properties of LaNi5 intermetallic compoundand and their effect on desorption reaction was carried out as a function of temperature. A Vibrating Sample Magnetometer (VSM) was used for the magnetic measurements and a Metal Hydrogen Reactor (MHR) supplied by a constant current through a coil was used for the hydrogen desorption reaction under the action of a magnetostatic field. Then, the hysteresis cycle, the first magnetization curve, the thermo-magnetization curves and the desorbed hydrogen mass were determined. The results showed that the application of a magnetic field corresponding to the magnetization at saturation Ms at a given temperature improved the hydrogen desorption reaction by the LaNi5.

Keywords

• Hysteresis cycle
• Thermo-magnetic effect
• Magnetization at saturation
• Desorption reaction
• Hydrogen storage
• Reaction kinetics