Gao Zihao Rei, Balestra Salvador R G, Li Jian, Camblor Miguel A
Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC), c/ Sor Juana Inés de la Cruz, 3, 28049, Madrid, Spain.
Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry, Stockholm University, 10691, Stockholm, Sweden.
Angew Chem Int Ed Engl. 2021 Sep 6;60(37):20249-20252. doi: 10.1002/anie.202106734. Epub 2021 Aug 9.
HPM-16 is a highly porous germanosilicate zeolite with an interrupted framework that contains a three-dimensional system of 12+10×10(12)×12+10-membered ring (MR) pores. The 10(12) MR pore in the b direction is a 10 MR pore with long 12 MR stretches forming 30 Å long tubular supercages. Along one direction the 10 MR pores are fused, meaning that the separation between adjacent pores consists of a single tetrahedron that is, additionally, connected to only three additional tetrahedra (a Q ). These fused pores are thus decorated by T-OH groups along the whole diffusion path, creating a hydrophilic region embedded in an otherwise essentially hydrophobic environment. The structure is built from highly porous 12×12×12 MR uninterrupted layers that are connected to each other through Q producing a second system of 10×10×10 MR pores. This zeolite can be extensively degermanated yielding a material with high thermal stability, despite its interrupted nature.
HPM - 16是一种具有间断骨架的高孔隙率锗硅沸石，其包含一个由12 + 10×10(12)×12 + 10元环（MR）孔组成的三维体系。沿b方向的10(12) MR孔是一个10 MR孔，具有长的12 MR延伸段，形成30 Å长的管状超笼。沿一个方向，10 MR孔是融合的，这意味着相邻孔之间的间隔由单个四面体组成，此外，该四面体仅与另外三个四面体相连（一个Q）。因此，这些融合孔沿整个扩散路径被T - OH基团修饰，在原本基本疏水的环境中形成了一个亲水区域。该结构由高度多孔的12×12×12 MR不间断层构建而成，这些层通过Q相互连接，形成了第二个10×10×10 MR孔体系。尽管其具有间断性质，但这种沸石可以进行大量脱锗处理，从而得到具有高热稳定性的材料。
