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The potential of ion beams for characterization of metal-organic frameworks
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
2016 (English)Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Ion scattering has been employed for depth-profiling of metal organic frameworks (MOFs) to characterize the degree of post-synthetic uptake of [FeFe](mcbdt)(CO)(6) (mcbdt = 2,3-dithiolato-benzoic acid). The system investigated consisted of UiO-66 (UiO = University of Oslo) MOF thin films grown on p-type Si wavers in which a molecular proton reduction catalyst [FeFe](mcbdt)(CO)(6) was introduced by postsynthetic exchange (PSE). We have characterized samples by Rutherford Backscattering spectrometry (RBS), Time-of-Flight Elastic Recoil Detection analysis (TOF-ERDA) and by Time-of-Flight Medium Energy Ion Scattering (TOF-MEIS). The beam induced sample modification during the analysis has been characterized by Scanning Electron Microscopy (SEM). No detectable sample modification was found for RBS and TOF-MEIS whereas TOF-ERDA had a clear impact in the present experiment. Composition profiles could be obtained and indicated enrichment of catalyst and/or catalyst residual near to and at the sample surface.

Place, publisher, year, edition, pages
2016. Vol. 371, 327-331 p.
Keyword [en]
RBS, TOF-MEIS, TOF-ERDA, Metal-organic framework, Catalyst
National Category
Accelerator Physics and Instrumentation
Identifiers
URN: urn:nbn:se:uu:diva-295577DOI: 10.1016/j.nimb.2015.10.059ISI: 000373412000065OAI: oai:DiVA.org:uu-295577DiVA: diva2:941185
Conference
22nd International Conference on Ion Beam Analysis (IBA), JUN 14-19, 2015, Opatija, CROATIA
Available from: 2016-06-22 Created: 2016-06-08 Last updated: 2017-02-15Bibliographically approved

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CiteExportLink to record
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