Aqueous chemistry of actinide elements

On Weak Complex Formation: Re-interpretation of Literature Data on the Np and Pu Nitrate Complexation

“…(10) with ß i = 9.2 ± 1. This value is in very good agreement with the equilibrium constant recalculated from the experimental data obtained under similar conditions by Danesi et al [28]. The function ί/φ, which is proportional to the aqueous phase complexation, is presented instead of φ.…”

Characterization of Aqueous Plutonium(IV) Nitrate Complexes by Extended X-ray Absorption Fine Structure Spectroscopy

“…The coordination chemistry of Pu (IV) nitrate complexes in solution has been studied extensively. − For nitric acid concentrations of 1−13 M, the extent of nitrate coordination increases as the nitric acid concentration increases. X-ray analysis has shown that the solid compounds (NH 4 ) 2 Ce(NO 3 ) 6 , (NH 4 ) 2 Th(NO 3 ) 6 , and (NH 4 ) 2 Pu(NO 3 ) 6 are isomorphous .…”

Controlling the reduction rate and oxidative etching for high yield green synthesis of palladium nanorods in segmented millifluidic flow reactors (SMFRs)

“…The time passed from the start of the reaction until the time of measurement is represented by t. The rate of the reduction constant that is to be determined is k. Pd(NO 3 ) 2 is the least stable among the precursors, which can be explained by metal nitrate complexes in general being less stable in comparison to the metal complexes containing bromide and chloride. 55,56 Millifluidic reactions using Na 2 -PdBr 4 as the metal precursor produced the highest PdNR yields out of all types of Pd precursors used. The slow rate of reduction demonstrated by Na 2 PdBr 4 results in a more gradual rate of Pd atom addition to the developing PdNRs.…”