Systematic approaches towards template-free synthesis of EMT-type zeolites
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
External organisations
- University of Bath
Abstract
Presently it is understood that 18-crown-6 ether is necessary as an organic template to synthesise pure and well crystalline EMT-type zeolites. This is problematic for optimisation of organic-free synthesis of zeolites. We report a new method to synthesise pure zeolite EMC-2 using a lower amount of 18-crown-6 ether than previously reported. At these low 18-crown-6 ether concentrations, FAU-type zeolites were not seen to co-crystallise. We observe that the crystallinity of the EMT-type zeolite is proportional to the amount of 18-crown-6 ether added in the synthesis. The as-synthesised zeolites were characterised using X-ray powder diffraction, scanning electron microscopy and solid state nuclear magnetic resonance. These findings are a crucial step towards understanding template roles and designing syntheses for zeolites without the use of toxic organic templates.
Details
Original language | English |
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Pages (from-to) | 261-270 |
Number of pages | 10 |
Journal | Microporous and Mesoporous Materials |
Volume | 255 |
Early online date | 24 Aug 2017 |
Publication status | Published - 1 Jan 2018 |
Keywords
- EMC-2, EMT, FAU, NMR, OSDA, PXRD, SEM, Synthesis, Zeolite