| Literature DB >> 28378529 |
Zachariah J Berkson1, Robert J Messinger2, Kyungsu Na3, Yongbeom Seo4, Ryong Ryoo5, Bradley F Chmelka1.
Abstract
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 29 Si-O-29 Si bonds between intermediate nanolayered silicate moieties and the crystallizing MFI zeolite nanosheet framework.Entities:
Keywords: crystallization; dynamic nuclear polarization; layered silicates; solid-state NMR spectroscopy; zeolites
Year: 2017 PMID： 28378529 DOI： 10.1002/anie.201609983
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336