Table 1 Positron lifetime parameters
From: Location determination of metal nanoparticles relative to a metal-organic framework
Sample | Ï„1 (ps) | Ï„2 (ps) | Ï„3 (ns) | I1 (%) | I2 (%) | I3 (%) |
|---|---|---|---|---|---|---|
MIL-101 | 192.0 ± 1.5 | 365.9 ± 3.3 | 2.65 ± 0.20 | 10.9 ± 1.2 | 88.6 ± 2.0 | 0.54 ± 0.04 |
0.5 wt% PtCu@MOF | 188.0 ± 2.4 | 368.5 ± 1.6 | 2.59 ± 0.12 | 12.0 ± 0.8 | 86.4 ± 1.8 | 0.65 ± 0.03 |
10 wt% Pt@MOF | 180.1 ± 9.6 | 371.9 ± 2.5 | 2.45 ± 0.16 | 14.7 ± 1.3 | 84.5 ± 1.3 | 0.78 ± 0.05 |
10 wt% PtCu@MOF | 184.3 ± 5.8 | 374.5 ± 1.7 | 2.10 ± 0.04 | 22.1 ± 0.8 | 76.4 ± 0.8 | 1.49 ± 0.03 |
20 wt% Pt@MOF | 184.1 ± 6.0 | 373.0 ± 2.5 | 2.34 ± 0.07 | 23.4 ± 0.5 | 78.9 ± 1.0 | 1.06 ± 0.05 |
20 wt% PtCu@MOF | 186.0 ± 5.8 | 377.4 ± 1.1 | 2.05 ± 0.06 | 25.3 ± 0.4 | 73.4 ± 1.2 | 1.56 ± 0.02 |
MOF-5 | 215.8 ± 6.3 | 431.9 ± 5.7 | 2.90 ± 0.19 | 30.7 ± 1.5 | 58.2 ± 1.4 | 11.09 ± 0.3 |
