Fig. 2 | NPG Asia Materials

Fig. 2

From: FeO–CeO2 nanocomposites: an efficient and highly selective catalyst system for photothermal CO2 reduction to CO

Fig. 2

a Product selectivity toward CO and CH4 for photothermal CO2 hydrogenation over the FeCe hydroxide precursor and FeCe-x catalysts (Fe:Ce molar ratio = 2:1). b CO2 conversion and product yields of CH4 and CO for the FeCe hydroxide precursor and FeCe-x catalysts. c CO2 conversion and product selectivity to CH4 and CO for FeCe-300 catalysts with different Fe:Ce molar ratios. Data for commercial CeO2 are also shown. d CO2 conversion, product yields and product selectivities over 50 h of CO2 hydrogenation tests. Reaction conditions: 50 mg catalyst, 300 W Xenon lamp, 5 cm irradiation distance, pressure of 0.18 MPa, reaction gas composition of CO2/H2/Ar = 15/60/25.

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