Hydrogenation reaction of CO
2 over Rh/FSM-16 and Rh/SiO
2 catalysts prepared by impregnation method was carried out. The Rh/FSM-16 catalyst showed higher CO
2 conversion and turnover frequency than Rh/SiO
2 one. The main product was CO over SiO
2 supported catalyst, but it was CH
4 over FSM-16 supported one irrespective of reaction temperature. From the results of TEM and H
2 chemisorption, the mean particle size of Rh for Rh/FSM-16 was smaller than that for Rh/SiO
2. The ratio of chemisorbed CO to chemisorbed H was smaller for Rh/FSM-16 catalyst than Rh/SiO
2 one. It was suggested that this finding reflected the difference in product selectivity of CO
2 hydrogenation between FSM-16 and SiO
2 supported Rh catalysts.
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