Tunable rare-earth fcu-MOFs: A platform for systematic enhancement of CO2 adsorption energetics and uptake

Dongxu Xue, Amy Cairns, Youssef Belmabkhout, Łukasz Wojtas, Yunling Liu, Mohamed Al Kordi, Mohamed Eddaoudi

Research output: Contribution to journalArticlepeer-review

348 Scopus citations

Abstract

A series of fcu-MOFs based on rare-earth (RE) metals and linear fluorinated/nonfluorinated, homo/heterofunctional ligands were targeted and synthesized. This particular fcu-MOF platform was selected because of its unique structural characteristics combined with the ability/potential to dictate and regulate its chemical properties (e.g., tuning of the electron-rich RE metal ions and high localized charge density, a property arising from the proximal positioning of polarizing tetrazolate moieties and fluoro-groups that decorate the exposed inner surfaces of the confined conical cavities). These features permitted a systematic gas sorption study to evaluate/elucidate the effects of distinctive parameters on CO2-MOF sorption energetics. Our study supports the importance of the synergistic effect of exposed open metal sites and proximal highly localized charge density toward materials with enhanced CO2 sorption energetics. © 2013 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)7660-7667
Number of pages8
JournalJournal of the American Chemical Society
Volume135
Issue number20
DOIs
StatePublished - May 7 2013

ASJC Scopus subject areas

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

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