Table 1 Summary of the simulated XANES results for Ni/NiO core–shell nanoparticles
<d > (nm) | I Ni | I NiO | Observed I NiO/I Ni | Simulated I NiO/I Ni | Ni-core radius R 1 (nm) | NiO-shell thickness t (nm) |
---|---|---|---|---|---|---|
7.2(3) | 0.3 | 4.03 | 13.43 | 13.44 | 1.55 | 2.05 |
12.2(1) | 0.81 | 3.31 | 4.09 | 4.09 | 3.8 | 2.3 |
13.9(2) | 1.38 | 2.57 | 1.86 | 1.87 | 5.2 | 1.75 |
19.0(2) | 1.8 | 2.21 | 1.23 | 1.22 | 7.8 | 1.7 |
22.1(2) | 1.7 | 1.72 | 1.01 | 1.02 | 9.4 | 1.65 |