Table 2 Metric parameters calculated from k3-weighted EXAFS spectra using a 3O-shell fitting procedure in comparison to simulated
PuO2 oxide.
From: Insights into the sonochemical synthesis and properties of salt-free intrinsic plutonium colloids
Sample | Shell | N | (ΔN) | σ2 (Å2) | (Δσ2) | R(Å) | (ΔR) |
|---|---|---|---|---|---|---|---|
Simulated PuO2 | |||||||
Os | 0.0 | 0.0 | — | — | — | — | |
Om | 8.0 | 0.0 | — | — | 2.34 | 0.01 | |
Ol | 0.0 | 0.0 | — | — | — | — | |
Pu | 12.0 | 0.0 | — | — | 3.81 | 0.01 | |
O2 | 24.0 | 0.0 | — | — | 4.47 | 0.01 | |
PuO2 485 °C | |||||||
Os | 2.2 | 0.3 | 0.005 | 0.002 | 2.19 | 0.01 | |
Om | 7.1 | 0.4 | 0.005 | 0.001 | 2.33 | 0.01 | |
Ol | 0 | — | — | — | — | — | |
Pu | 8.9 | 0.8 | 0.005 | 0.001 | 3.81 | 0.01 | |
O2 | 13.9 | 3.3 | 0.007 | 0.002 | 4.45 | 0.02 | |
Sonochemical colloid | |||||||
Os | 2.5 | 0.6 | 0.004 | 0.003 | 2.17 | 0.02 | |
Om | 7.2 | 0.7 | 0.004 | 0.001 | 2.32 | 0.01 | |
Ol | 0.3 | 1.0 | 0.010* | — | 2.76 | 0.20 | |
Pu | 10.0 | 0.6 | 0.004 | 0.010 | 3.80 | 0.01 | |
O2 | 9.5 | 1.7 | 0.010 | 0.002 | 4.44 | 0.03 | |
Hydrolytic colloid | |||||||
Os | 4.5 | 1.2 | 0.007 | 0.003 | 2.24 | 0.02 | |
Om | 5.0 | 1.3 | 0.007 | 0.003 | 2.39 | 0.02 | |
Ol | 0.5 | 0.7 | 0.010* | — | 3.02 | 0.25 | |
Pu | 4.6 | 0.4 | 0.005 | 0.002 | 3.80 | 0.01 | |
O2 | 2.5 | 5.7 | 0.010* | — | 4.47 | 0.25 | |
PuO2 oxide.