| Sample | BE Pd 3d3/2 (eV) | BE Pd 3d5/2 (eV) | Oxidation state | Pd (%) |
| CeZr8 | 342.1 | 336.8 | Pd2+ | 0.02 |
| CeZr4 | 342.3 | 337.0 | Pd2+ | 0.02 |
| CeZr2 | 341.4 | 336.5 | Pd2+ | 0.02 |
| CeZr0 | 341.4 | 336.4 | Pd2+ | 0.02 |