Co-C/FeOx composite is prepared via hydrothermal synthesis and high temperature calcination by using MOFs as templates.Its catalytic performance for CO2 reduction at 300℃and 0.2 MPa is investigated.The distribution of the products from CO2 reduction is explored by adjusting the mass ratio of Co-C and FeOxin the composite.It is found that the conversion rate of CO2 reaches 28.8％and the selectivity of C2H6 and C3H8 is improved to 28.6％when the mass ratio of Co-C and FeOxis 1:4.The addition of FeOx can promote the formation of CO∗ intermediate.The combination of Co-C and FeOx makes the CO2 reduction process take into account both the CO2 conversion and the selectivity of C2+products.This study provides an effective strategy for the selective reduction of CO2 to multi-carbon products,and also discloses the application potential of carbon-supported metal/metal oxide composites synthesized with MOFs as precursors in catalysis.
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