Conversion of actual flue gas CO 2 via cycloaddition to propylene oxide catalyzed by a single-site, recyclable zirconium catalyst

Michael J. Kelly, Alexander Barthel, Clement Maheu, Ounjit Sodpiban, Frank-Blondel Dega, Sai V. C. Vummaleti, Edy Abou-Hamad, Jeremie Pelletier*, Luigi Cavallo, Valerio D'Elia, Jean-Marie Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

A reusable zirconium-based catalyst for the cycloaddition of CO2 to propylene oxide (PO) was prepared by the surface organometallic chemistry (SOMC) methodology. Accordingly, well-defined amounts of the ZrCl4·(OEt2)2 precursor were grafted on the surface of silica dehydroxylated at 700°C (SiO2-700) and at 200°C (SiO2-200) in order to afford surface coordination compounds with different podality and chemical environment. The identity of the surface complexes was thoroughly investigated by FT-IR, elemental microanalysis and solid state NMR and applied as a recoverable and reusable heterogeneous catalyst for the title reaction using pure CO2 and flue gas samples from a cement factory. The observed catalytic activity for the isolated zirconium complexes is rationalized by means of systematic DFT calculations.
Original languageEnglish (US)
Pages (from-to)243-252
Number of pages10
JournalJournal of CO2 Utilization
Volume20
DOIs
StatePublished - Jun 12 2017

Keywords

  • CO conversion
  • Flue gas
  • Heterogeneous catalysis
  • Propylene carbonate
  • Zirconium

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Process Chemistry and Technology
  • Chemical Engineering (miscellaneous)

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