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Title
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Direct imaging of ALD deposited Pt nanoclusters inside the giant pores of MIL-101
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Author
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Abstract
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| MIL-101 giant-pore metal-organic framework (MOF) materials have been loaded with Pt nanoparticles using atomic layer deposition. The final structure has been investigated by aberration-corrected annular dark-field scanning transmission electron microscopy under strictly controlled low-dose conditions. By combining the acquired experimental data with image simulations, the position of the small clusters within the individual pores of a metal-organic framework has been determined. The embedding of the Pt nanoparticles is confirmed by electron tomography, which shows a distinct ordering of the highly uniform Pt nanoparticles. The results show that atomic layer deposition is particularly well-suited for the deposition of individual nanoparticles inside MOF framework pores and that, upon proper regulation of the incident electron dose, annular dark-field scanning transmission electron microscopy is a powerful tool for the characterization of this type of materials at a local scale. |
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Language
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English
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Source (journal)
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Particle and particle systems characterization. - Weinheim
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Publication
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Weinheim
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2016
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ISSN
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0934-0866
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DOI
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10.1002/PPSC.201500252
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Volume/pages
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33
:7
(2016)
, p. 382-387
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ISI
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000379970000006
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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