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Zunkovic, E., Mazaj, M., Mali, G., Rangus, M., Devic, T., Serre, C. & Logar, Z. N. (2015) Structural study of Ni- or Mg-based complexes incorporated within UiO-66-NH2 framework and their impact on hydrogen sorption properties. JOURNAL OF SOLID STATE CHEMISTRY, 225 209–215.
Added by: Richard Baschera (2017-03-01 08:48:21) |
| Type de référence: Article DOI: {10.1016/j.jssc.2014.12.033} Numéro d'identification (ISBN etc.): {0022-4596} Clé BibTeX: Zunkovic{2015} Voir tous les détails bibliographiques  |
Catégories: HORSIMN Créateurs: Devic, Logar, Mali, Mazaj, Rangus, Serre, Zunkovic Collection: {JOURNAL OF SOLID STATE CHEMISTRY} |
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| Résumé |
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{Nickel and magnesium acetylacetonate molecular complexes were post-synthetically incorporated into microporous zirconium-based MOF (UiO-66-NH2) in order to introduce active open-metal sites for hydrogen sorption. Elemental analysis, nitrogen physisorption and DFT calculations revealed that 5 molecules of Ni(acac)(2) or 2 molecules of mg(acac)(2) were incorporated into one unit cell of UiO-66NH(2). H-1-C-13 CPMAS and H-1 MAS NMR spectroscopy showed that, although embedded within the pores, both Ni- and Mg-complexes interacted with the UiO-66-NH2 framework only through weak van der Waals bonds. Inclusion of metal complexes led to the decrease of hydrogen sorption capacities in Ni-modified as well as in Mg-modified samples in comparison with the parent UiO-66-NH2. The isosteric hydrogen adsorption enthalpy slightly increased in the case of Ni-modified material, but not in the case of Mg-modified analogue. (C) 2015 Elsevier Inc. All rights reserved.}
Added by: Richard Baschera |