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Complete back extraction of palladium can be achieved by thiourea.
In the majority of cases palladacycles are likely to serve as a source of highly active but unstable zero-valent palladium species.
The data suggest that this site may be due to hydrogen binding to a free surface of the palladium.
So, the highly dispersed and strongly bound palladium(0) sites in the mPMF–Pd0 could be responsible for the observed high activities.
The results provide an interesting insight into the chemistry of palladium(II)/thiolate/phosphine complexes.
SummaryThe Córrego Bom Sucesso alluvial deposit near Serro, Minas Gerais, probably provided the specimens from which the element palladium was first discovered.
Some of the main conclusions reached include the fact that palladium suffers depletion during weathering and transport.
The obtained results suggest that during the reaction two types of catalytic sites are created by carbonaceous deposits on the palladium surface: A sites representing small spaces and E sites representing large spaces of palladium between the carbonaceous deposits.
This MFA results well represent the flow of palladium in Korea and give a strategy to secure palladium steadily.
This is a significant observation in terms of considerable reduction in palladium content and the availability of more active surface area.
The method can be combined with subsequent FAAS determination of palladium.
Such results have been explained by different interactions between palladium and the support.
Both results can be explained by assuming that hydrogen occupies the subsurface sites of the palladium clusters.
The method proved to be successful in determination of palladium in the intermetallides and resistor.
Based on these results a scheme has been proposed for the recovery of palladium from HLLW.
Native palladium occurs as a crystallized component within the Pd-O phase, with microstructural and chemical features suggesting a desiccation process.
The result of a loading test suggests that palladium is extracted as a 1:2 metal-reagent complex.

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