Authors
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Stöter, M. ; Gödrich, S. ; Feicht, P. ; Rosenfeldt, S. ; Thurn, H. ; Neubauer, J. ; Seuss, M. ; Lindner, P. ; Kalo, H. ; Möller, M. ; Fery, A. ; Förster, S. ; Papastavrou, G. ; Breu, J.
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Title
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Controlled exfoliation of layered silicate heterostructures into bilayers and their conversion into giant Janus platelets
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Date
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20.06.2016
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Number
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50125
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Abstract
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Ordered heterostructures of layered materials where interlayers with different reactivities strictly alternate in stacks offer predetermined slippage planes that provide a precise route for the preparation of bilayer materials. We use this route for the synthesis of a novel type of reinforced layered silicate bilayer that is 15·% stiffer than the corresponding monolayer. Furthermore, we will demonstrate that triggering cleavage of bilayers by osmotic swelling gives access to a generic toolbox for an asymmetrical modification of the two vis-à-vis standing basal planes of monolayers. Only two simple steps applying arbitrary commercial polycations are needed to obtain such Janus-type monolayers. The generic synthesis route will be applicable to many other layered compounds capable of osmotic swelling, rendering this approach interesting for a variety of materials and applications.
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Publisher
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Angewandte Chemie
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Wikidata
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Citation
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Angewandte Chemie 128 (2016) 7524-7528
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DOI
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https://doi.org/10.1002/ange.201601611
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Tags
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