Direct visualisation of carbon dioxide adsorption in gate-opening zeolitic imidazolate framework ZIF-7

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Zhao, P. ; Lampronti, G.I. ; Lloyd, G.O. ; Suard, E. ; Redfern, S.A.T. (2014)
  • Publisher: Royal Society of Chemistry
  • Journal: Journal of Materials Chemistry A (vol: 2, pp: 620-623)
  • Related identifiers: doi: 10.1039/c3ta13981f
  • Subject: sub-03

The crystal structures of zeolitic imidazolate framework 7 (ZIF-7) under various CO2 pressures were studied by high-resolution neutron powder diffraction. CO2 adsorption in ZIF-7 is visualised and demonstrated to be primarily controlled by the benzimidazolate ligands via a gate-opening mechanism. Our results highlight the importance of pressure on the CO2 adsorption and the related structural framework responses in ZIF-7.
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