Figure 6.

TOF values of the catalysts during (a) temperature-screening tests (reaction conditions: 200 mg catalyst, H2:CO2 ratio = 4:1, 100 mL·min–1 total flow, WHSV = 30,000 mL·g–1·h–1) and (b) stability tests (reaction conditions: 550 °C, 200 mg catalyst, H2:CO2 ratio = 4:1, 50 mL·min–1 total flow, WHSV = 15,000 mL·g–1·h–1).