Solvothermal synthesis, nanostructural characterization and gas cryo-adsorption studies in a metal–organic framework (IRMOF-1) material

Vasileios Tzitzios, Nikolaos Kostoglou, Maria Giannouri, Georgia Basina, Christos Tampaxis, Georgia Charalambopoulou, Theodore Steriotis, Kyriaki Polychronopoulou, Charalambos Doumanidis, Christian Mitterer, Claus Rebholz

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

A nanoporous metal–organic framework material, exhibiting an IRMOF-1 type crystalline structure, was prepared by following a direct solvothermal synthesis approach, using zinc nitrate and terephthalic acid as precursors and dimethylformamide as solvent, combined with supercritical CO2 activation and vacuum outgassing procedures. A series of advanced characterization methods were employed, including scanning electron microscopy, Fourier-transform infrared radiation spectroscopy and X-ray diffraction, in order to study the morphology, surface chemistry and structure of the IRMOF-1 material directly upon its synthesis. Porosity properties, such as Brunauer–Emmet–Teller (BET) specific area (∼520 m2/g) and micropore volume (∼0.2 cm3/g), were calculated for the activated sample based on N2 gas sorption data collected at 77 K. The H2 storage performance was preliminary assessed by low-pressure (0–1 bar) H2 gas adsorption and desorption measurements at 77 K. The activated IRMOF-1 material of this study demonstrated a fully reversible H2 sorption behavior combined with an adequate gravimetric H2 uptake relative to its BET specific area, thus achieving a value of ∼1 wt.% under close-to-atmospheric pressure conditions.

Original languageBritish English
Pages (from-to)23899-23907
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number37
DOIs
StatePublished - 14 Sep 2017

Keywords

  • Gas adsorption
  • Hydrogen storage
  • IRMOF-1
  • Porosity
  • Solvothermal synthesis
  • Structure

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