The effect of CO₂, CH₄, H₂O and N₂ on MgNi alloys as hydrogen transporting media

Nickel-added magnesium hydrides have been thoroughly examined as H₂ transporting media. They have great advantages concerning H₂ content and storage cost. A serious disadvantage is their low packing density, so the container is inevitably bulky and heavy. To avoid this the transportation system could work simultaneously as a hydrogen purification system. To study the feasibility of such systems, the effects on the reaction of impurity gas both in the H₂ and adsorbed on the surface of powder particles have been examined experimentally.