Tuning the gate opening pressure of Metal-Organic Frameworks (MOFs) for the selective separation of hydrocarbons

Nour Nijem, Haohan Wu, Pieremanuele Canepa, Anne Marti, Kenneth J. Balkus, Timo Thonhauser, Jing Li, Yves J. Chabal

Research output: Contribution to journalArticle

195 Citations (Scopus)

Abstract

Separation of hydrocarbons is one of the most energy demanding processes. The need to develop materials for the selective adsorption of hydrocarbons, under reasonable conditions, is therefore of paramount importance. This work unveils unexpected hydrocarbon selectivity in a flexible Metal-Organic Framework (MOF), based on differences in their gate opening pressure. We show selectivity dependence on both chain length and specific framework-gas interaction. By combining Raman spectroscopy and theoretical van der Waals Density Functional (vdW-DF) calculations, the separation mechanisms governing this unexpected gate-opening behavior are revealed.

Original languageEnglish
Pages (from-to)15201-15204
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number37
DOIs
Publication statusPublished - Sep 19 2012

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ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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