| 초록 |
The Al2O3-modified ordered mesoporous Co3O4 catalysts (meso-Co3O4) were investigated for the Fischer-Tropsch synthesis (FTS) reaction to obtain a higher catalytic stability and activity by varying the ratio of Al2O3/Co3O4 from 0 to 15wt%. At an optimal content of Al2O3 pillaring material, a high CO conversion and stability were observed compared to the bare mesoporous Co3O4. The Al2O3/meso-Co3O4 catalyst having a 5wt%Al2O3 showed a superior catalytic stability and activity due to a significantly increased structural stability with the help of the strongly interacted Al2O3 modifier in the Co3O4 mesopores even under reductive reaction condition. The different deactivation patterns according to the Al2O3 content on the meso-Co3O4 were explained using the results of XRD, TPR, BET and XAFS analysis. |
