Fig. 5: Mechanism of COx inhibition. | Nature Communications

Fig. 5: Mechanism of COx inhibition.

From: Suppressing COx in oxidative dehydrogenation of propane with dual-atom catalysts

Fig. 5

a C3H6-TPD analysis of of Ni1-TiO2, Fe1-TiO2 and Ni1Fe1-TiO2. b In-situ FT-IR spectra of Ni1Fe1-TiO2 with 10 vol% C3H8/Ar (10 mL/min) and 10 vol% O2/Ar (10 mL/min), (350–500 °C, recorded at intervals of 50 °C, down to top), Fe1-TiO2 (500 °C) and Ni1-TiO2 (500 °C) at enlarge view 1850–1550 cm−1. c, d EPR spectra of Ni1-TiO2, Fe1-TiO2, and Ni1Fe1-TiO2 after pretreatment with 10% O2/Ar. e Schematic diagram of COx formation.

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