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| Samples | Mo 3d (%) | |||
|---|---|---|---|---|
| Mo4+ | Mo5+ | Mo6+ | Mo4+ + Mo5+ | |
| MoS2/γ-Al2O3 | 38.7 | 20.5 | 40.8 | 59.2 |
| Fe–MoS2/γ-Al2O3 | 40.5 | 19.5 | 40.0 | 60.0 |
| Co–MoS2/γ-Al2O3 | 42.5 | 22.4 | 35.1 | 64.9 |
| Ni–MoS2/γ-Al2O3 | 46.2 | 31.1 | 22.7 | 77.3 |
