| 초록 |
We report a simple synthesis of Ru nanoparticles confined in the mesopores of OMAS (Ru@OMAS). This approach eliminates multi-processes that are usually required for pore confinement of metal nanoparticles. We use different types of OMAS with controlled Si/Al molar ratios (Si/Al = 10, 30, and 50). The ordered OMASs have the same large pore size (∼30 nm) and Ru NP loading (3 wt%). Increasing Al content strongly affects the strength of acid site, thereby mediating the catalytic activity and product selectivity. However, increasing Al content decreased the reduction degree of Ru metal. As a consequence, among the various OMASs with different Si/Al ratio, Si/Al-50 shows the highest selectivity and activity for C5-C20 due to its mild acidity and good reducibility |
