Fig. 4: Kinetics of hydrogen spillover–coupling mechanism of PDH with RWGS. | Nature Communications

Fig. 4: Kinetics of hydrogen spillover–coupling mechanism of PDH with RWGS.

From: Unraveling the hydrogen spillover in tandem propane dehydrogenation and reverse water gas shift reaction

Fig. 4: Kinetics of hydrogen spillover–coupling mechanism of PDH with RWGS.

a–c CO2-PDH and PDH under different C3H8, CO2 and H2 partial pressures. The dash lines are to guide the eyes. Catalytic testing conditions: 500 ⁰C, differential reactor, atmospheric pressure, 50 mg Pt1Sn7/CeOx-Al2O3 tandem catalyst (T4). a C3H8: 7–28 kPa, CO2: 8.6 kPa; (b) C3H8: 9 kPa, CO2: 0–34.4 kPa; (c) C3H8: 14 kPa, CO2: 8.6 kPa, H2: 0–44.4 kPa, 35 mL·min−1 total flow rate balanced with N2 (detail data from Supplementary Figs. 26–30). d Comparison of predicted (from Supplementary Eq. S(63)) and experimental C3H6 formation rates. e KIEs of CO2-PDH on Pt1Sn7/CeOx-Al2O3 tandem catalyst (T4) (detail data from Supplementary Fig. 32). f Proposed reaction processes of hydrogen spillover-coupling mechanism of PDH with RWGS.

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