Carbon dioxide (CO2) known as a cause of the green house effect was converted into an industrially useful product such as CH4, C(2+) and CO by the use of a batch type recirculation reactor within the temperature range of 25 ℃∼400 ℃ at 1 atmospheric pressure. The isothermal temperature oxidation (ITO) result suggests that the oxygen dissociated from the rupture of CO2 reacts with Pt/MoO2, thereby forming Pt/MoO3 and CH4. Products formed from the reaction between CO2 and H2 via the surface of the Pt/MoO2 based catalysts may be explained based on 2 presumed reaction pathways: first, the reaction to produce CH4 and H2O between hydrogen spillover from Pt and adsorbed CO2 over the MoO2 surface at a low temperature; second, the formation of CO and H2 based on a reaction between the surface MoO3 and CH4 at a high temperature.