Reaktionsgleichung
O.O.[N+:3]([O-:6])([O-:5])=[O:4].[Pd+2:7].[N+:8]([O-:11])([O-:10])=[O:9]>[Fe].O>[N+:3]([O-:6])([O-:5])=[O:4].[Pd+2:7].[N+:8]([O-:11])([O-:10])=[O:9]Komponenten
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- 70 °C
Versuchsvorschrift
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.
Aufarbeitung
- filtrationare sieved
- customto recover a getter powder
- addition100 g of this fraction is added to a solution
- customprepared
- distillationin 40 ml distilled water in a glass flask
- temperaturemaintained for 5 hours
Quellen und Nachweise
- ORD-Eintrag
- ord-62706aec274f4b9580a58dfc939a5ca0
- Quelldatensatz
- uspto-grants-2013_01
- Patentnummer
- US08363384B2
Verknüpfte Notizen
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