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Nucleation and Early Stages of Layer-by-Layer Growth of Metal Organic Frameworks on Surfaces

Summerfield, Alex; Cebula, Izabela; Schröder, Martin; Beton, Peter H.

Authors

Alex Summerfield

Izabela Cebula

Martin Schröder



Abstract

High resolution atomic force microscopy (AFM) is used to resolve the evolution of crystallites of a metal organic framework (HKUST-1) grown on Au(111) using a liquid-phase layer-by-layer methodology. The nucleation and faceting of individual crystallites is followed by repeatedly imaging the same submicron region after each cycle of growth and we find that the growing surface is terminated by {111} facets leading to the formation of pyramidal nanostructures for [100] oriented crystallites, and triangular [111] islands with typical lateral dimensions of tens of nanometres. AFM images reveal that crystallites can grow by 5−10 layers in each cycle. The growth rate depends on crystallographic orientation and the morphology of the gold substrate, and we demonstrate that under these conditions the growth is nanocrystalline with a morphology determined by the minimum energy surface.

Journal Article Type Article
Publication Date Oct 15, 2015
Journal Journal of Physical Chemistry C
Print ISSN 1932-7447
Electronic ISSN 1932-7455
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 119
Issue 41
Pages 23544-23551
APA6 Citation Summerfield, A., Cebula, I., Schröder, M., & Beton, P. H. (2015). Nucleation and Early Stages of Layer-by-Layer Growth of Metal Organic Frameworks on Surfaces. Journal of Physical Chemistry C, 119(41), 23544-23551. https://doi.org/10.1021/acs.jpcc.5b07133
DOI https://doi.org/10.1021/acs.jpcc.5b07133
Publisher URL https://pubs.acs.org/doi/10.1021/acs.jpcc.5b07133
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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