Table 3. BEs of the Ni 2p3/2 Levels for the Reduced Catalysts and Ni0/Nitotal Atomic Ratios.
Ni 2p3/2 | Ce 3d3/2 | |||
---|---|---|---|---|
Ni0 | Ni2+ | Ni0/(Nitotal) | Ce4+ | |
catalysts | BE (eV) | BE (eV) | % | BE (eV) |
Ni/CeO2 | 851.8 | 853.4–855.3 | 26.6 | 915.94 |
Na–Ni/CeO2 | 851.8 | 853.1–854.8 | 38.1 | 916.11 |
K–Ni/CeO2 | 851.9 | 853.1–855.2 | 20.6 | 916.09 |
Cs–Ni/CeO2 | 851.8 | 853.0–854.6 | 29.9 | 916.13 |