| 초록 |
MCM-22 precursors (shortened to MCM-22(P)), thermally converted into MCM-22 zeolites, have a layered-structure. The intra-layers in MCM-22(P) are condensed during the thermal calcination and then, the new inter-layers are generated in-between. So far, the limited accessibility toward the 12 membered pockets in MCM-22 has been overcome through the pillaring or delamination of MCM-22 (i.e., MCM-36). Up to now, a combination of swelling and sonication is known as for an effective protocol to obtain the delaminated MCM-22 (ITQ-2). In this presentation, we would like to address the rigorous analysis on the delamination process of MCM-22(P) in an effort to understand the delamination of layer-structured materials. |
