fig10
Figure 10. (A) Schematic illustration of the changes in the chemical states of Ru species in Ru/CeO₂ under oxidizing conditions. Reproduced with permission from Ref.[139]; (B) Schematic illustration of the Ru precipitation in Ru-substituted LaFeO3 perovskite oxides during the redox process. Reproduced with permission from Ref.[142]; (C) Catalytic combustion of LHs (ΔTC3-90) on the aged Co3O4-based catalysts at 750 °C for 100 or 200 h. Reproduced with permission from Ref.[143]; (D) The T90 of fresh and aged Ru/La-Co3O4, RuLa/La-Co3O4 for C3H8 oxidation. Reproduced with permission from Ref.[143]. LHs: Light hydrocarbons; LFR3: LaFeO3.
