Fig. 2: Key species in the ODH reaction system. | Nature Communications

Fig. 2: Key species in the ODH reaction system.

From: Auto-accelerated dehydrogenation of alkane assisted by in-situ formed olefins over boron nitride under aerobic conditions

Fig. 2: Key species in the ODH reaction system.The alternative text for this image may have been generated using AI.

a “C2H6–C3H6” temperature-programmed reaction. Signals of C2H4 (m/z = 25), CO (m/z = 12), C2H6 (m/z = 30), and C3H6 (m/z = 39) were measured via mass spectrometer. Ftotal = 40 mL min−1, C2H6:C3H6:O2:N2 = 8:2.5:8:21.5. (b, c) C2H4 and CO selectivity as function of propane conversion at various WHSV. C3H8: O2: N2 = 8: 8: 24; reaction temperature, 410–510 °C. d Gas profile in transient pulses of C3D8 over BN. Signals of C3D8 (m/z = 34), C3H6 (m/z = 41), C2H4 (m/z = 29), PO (m/z = 58), and PO(D) (m/z = 64) were measured via mass spectrometer. Ftotal = 40 mL min−1, C3H6:O2:N2 = 2.5:8:29.5; mcat = 100 mg; pulse value: 1 mL each time.

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