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Molecular simulation of hydrogen adsorption in metal-organic frameworks

Fischer, M; Hoffmann, F; Fröba, M; (2010) Molecular simulation of hydrogen adsorption in metal-organic frameworks. Colloids and Surfaces A: Physicochemical and Engineering Aspects , 357 (1-3) pp. 35-42. 10.1016/j.colsurfa.2009.11.025.

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The capabilities and limitations of the application of molecular simulation techniques to the adsorption of hydrogen in metal-organic frameworks (MOFs) are explored for selected case studies. Force-field based grand-canonical Monte Carlo simulations are employed to investigate the adsorption characteristics of three different isoreticular MOFs, resulting for good agreement with experimental findings. The predictive potential of the method is demonstrated for Zn4O(mip)3, a novel system which has not yet been fully characterized experimentally. Further calculations for MOFs with unsaturated metal sites reveal a shortcoming of the simulation technique, as the interaction of hydrogen with these sites is not adequately represented by the potential model. Density-functional theory calculations are employed to study the metal-dihydrogen interaction in more detail, making use of a non-periodic model system which is representative for many copper-containing MOFs.

Type: Article
Title: Molecular simulation of hydrogen adsorption in metal-organic frameworks
DOI: 10.1016/j.colsurfa.2009.11.025
Publisher version: http://linkinghub.elsevier.com/retrieve/pii/S09277...
Additional information: file: :C$$:/Dokumente und Einstellungen/Administrator/Desktop/Literatur/Eigene und AK/Fischer_ColloidsSurfA357_35_2010.pdf:pdf keywords: adsorption,density-functional theory calculations,grand-canonical Monte Carlo simulations,hydrogen storage,metal-organic frameworks,molecular simulation
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Maths and Physical Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/1339639
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