Palladium(II) nitrate dihydrate → Palladium nitrate

関与物質

反応条件

反応手順

Powders of a metal getter having composition by weight of Zr 70%—V 24.6%—Fe 5.4% are sieved to recover a getter powder having a grain size fraction ranging from about 53 μm to about 128 μm. 100 g of this fraction is added to a solution prepared by dissolving 0.5 g of palladium nitrate dihydrate, Pd(NO3)2×2 H2O, in 40 ml distilled water in a glass flask. The flask is connected to a Rotavapor®, and the solution is heated to 70° C. and maintained for 5 hours of stirring, resulting in the evaporation of water and deposition of palladium nitrate onto the surface of the getter powder. The powders are then subjected to a thermal treatment at 500° C. under vacuum for 3 hours and allowed to cool to room temperature for about the next 16 hours. As a result, the palladium nitrate decomposes into metallic palladium that forms “islands” on the surface of the grains of the getter material. The nominal amount of palladium is equal to 0.2% by weight of the solid, composite getter.

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