Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA.
Department of Chemical Engineering, The City College of New York, CUNY, New York, NY, 10031, USA.
Angew Chem Int Ed Engl. 2017 May 2;56(19):5164-5169. doi: 10.1002/anie.201609983. Epub 2017 Apr 5.
Mesostructured MFI zeolite nanosheets are established to crystallize non-topotactically through a nanolayered silicate intermediate during hydrothermal synthesis. Solid-state 2D NMR analyses, with sensitivity enhanced by dynamic nuclear polarization (DNP), provide direct evidence of shared covalent Si-O- Si bonds between intermediate nanolayered silicate moieties and the crystallizing MFI zeolite nanosheet framework.
介孔 MFI 沸石纳米片通过水热合成过程中的纳米层状硅酸盐中间相非拓扑地结晶形成。通过动态核极化（DNP）增强灵敏度的固态 2D NMR 分析提供了中间纳米层状硅酸盐部分和结晶 MFI 沸石纳米片骨架之间共享共价 Si-O-Si 键的直接证据。
