| 催化剂 | 4Ce1Cu | 4Ce1Cr | 4Ce1Mn | 4Ce1Ni | |||||
| 表面形态 | Cu2+ | Cu+ | Cr6+ | Cr3+ | Mn4+ | Mn3+ | Mn2+ | Ni(OH)2 | NiO |
| 结合能(eV) | 934.4 | 932.4 | 579.5 | 577.5 | 643.2 | 642.0 | 640.8 | 867.1 | 855.4 |
| 比值 | Cu2+:Cu+ = 49.9 | Cr6+:Cr3+ = 1.8 | Mn4+:Mn3+:Mn4+ = 40:43:17 | Ni(OH)2:NiO = 0.96 | |||||