Cooperative Adsorption by Porous Frameworks: Diffraction Experiment and Phenomenological Theory

Dovgaliuk, Iurii;Nouar, Farid;Serre, Christian;Filinchuk, Yaroslav;Chernyshov, Dmitry
(2017) Chemistry: A European Journal — Vol. 23, p. 1-8 (2017)

Files

FilArt217.pdf
  • Restricted Access
  • Adobe PDF
  • 1.57 MB
Request a copy

Details

Authors
  • Dovgaliuk, IuriiSwiss-Norwegian Beamlines at the ESR Grenoble (France)
    Author
  • Nouar, FaridUniversité de Versailles (France)
    Author
  • Serre, ChristianUniversité de Versailles (France)
    Author
  • Filinchuk, YaroslavUCLouvain
    Author
  • Chernyshov, DmitrySwiss-Norwegian Beamlines at the ESR Grenoble (France)
    Author
Abstract
Materials science of metal open frameworks is a state-ofthe-art field for numerous applications, such as gas storage, sensors and medicine. Two nanoporous frameworks, γ-Mg(BH4)2 and MIL-91(Ti), with different level of structural flexibility were examined with in situ X-ray diffraction guest adsorption-desorption experiments. Both frameworks exhibit a cooperative guest adsorption correlated with a lattice deformation. This cooperativity originates from the longrange interactions between guest molecules mediated by elastic response of the host porous structure. The observed experimental scenarios are rationalized with a mean field Gorsky-Bragg-Williams (GBW) approach for the lattice-gas Ising model. The adjusted GBW model, in combination with in situ synchrotron powder diffraction, demonstrates an efficient experimental and phenomenological approach to characterize thermodynamics of the adsorption in MOFs not only for the total uptake but also for every specific guest site.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Dovgaliuk, I., Nouar, F., Serre, C., Filinchuk, Y., & Chernyshov, D. (2017). Cooperative Adsorption by Porous Frameworks: Diffraction Experiment and Phenomenological Theory. Chemistry: A European Journal, 23, 1-8. https://doi.org/10.1002/chem.201702707 (Original work published 2017)