| 초록 |
A platinum catalyst exhibits excellent CO to CO2 conversion in room temperature CO oxidation reaction. However, over the course of the reaction time, the catalyst is deactivated by the carbonate formation, so research on the durability enhancement of the catalyst is necessary. In this study, antimony was supported by platinum catalysts in various ways. At this time, all catalysts to which antimony is added have increased CO oxidation removal capability and increase the durability of the catalysts. Accordingly, characteristics of catalysts were observed using various analyses such as FE-TEM, XPS and PL. Active metal particles in the catalyst exhibiting the best reactive activity are found to be very small in size and SMSI effects are produced by increased surface electron density. Therefore, it has been confirmed that the size of active metal particles and SMSI effects act as important factors for the superior efficiency of CO oxidation catalysts at room temperature. |
