Zeolites fit for a crown: Studying organic-framework host-guest interactions through thermogravimetric techniques

Research output: Contribution to journalArticlepeer-review

Abstract

Every year millions of tons of zeolites are produced, being used as molecular sieves, hydrocracking catalysts, gas-capture materials and for emerging novel applications. There is a demand to synthesise new zeolites with bespoke frameworks, which are tailor-made for a chosen application. To achieve these ‘designer zeolites’ it is crucial to fully understand the host-guest interactions between organic additives and zeolitic frameworks. Here we have studied four different zeolites, synthesised with the same organic additive, 18-crown-6 ether, which show observable differences in the host-guest interactions. We demonstrate that the framework geometry dominates the decomposition temperature, enthalpy and mechanism. The zeolites show unique decomposition features, emphasising experimental differences in how the organic additive and framework interact.

Original languageEnglish
Article number110479
JournalMicroporous and Mesoporous Materials
Volume308
Early online date29 Jul 2020
DOIs
Publication statusPublished - 1 Dec 2020

Keywords

  • 18-Crown-6 ether
  • Catalyst
  • EMT
  • FAU
  • Framework
  • Host-guest interactions
  • KFI
  • Organic additive
  • OSDA
  • RHO
  • Synthesis
  • Template
  • Thermogravimetric
  • Zeolite
  • Zeolite X

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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