A family of nitrogen enriched metal organic frameworks with CCS potential

Emma Dooris, Craig A. McAnally, Edmund J. Cussen, Alan R. Kennedy, Ashleigh J. Fletcher

Research output: Contribution to journalArticle

9 Citations (Scopus)
92 Downloads (Pure)

Abstract

Materials with enhanced carbon capture capacities are required to advance post-combustive amelioration methods; these are necessary to reduce atmospheric carbon dioxide emissions and the associated rate of global temperature increase. Current technologies tend to be very energy intensive processes with high levels of waste produced; this work presents three new metal organic framework materials with embedded Lewis base functionalities, imparted by the nitrogen-rich ligand, demonstrating an affinity for carbon dioxide. Thus , we report the synthesis and characterization of a series of metal organic framework materials using a range of metal centers (Co, Ni, and Zn) with the 1,4-bis(pyridin-4-yl)-1,2,4,5-tetrazine organic linker, in the presence of ammonium hexafluorosilicate. Three distinct crystal structures are reported for Zn-pytz(hydro) 1D chains, and Ni-pytz and Co-pytz isostructural 1D Ladders. Co-pytz shows an uptake of 47.53mg CO2/g of sorbent, which equates to 15 wt % based on available nitrogen sites within the structure, demonstrating potential for carbon capture applications.
Original languageEnglish
Number of pages8
JournalCrystals
Volume6
Issue number14
DOIs
Publication statusPublished - 21 Jan 2016

Keywords

  • carbon capture
  • adsorption
  • crystallography
  • synthesis
  • transition metals
  • gravimetry

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