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Authors 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.
Title Controlled exfoliation of layered silicate heterostructures into bilayers and their conversion into giant Janus platelets
Date 20.06.2016
Number 50125
Abstract 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.
Publisher Angewandte Chemie
Wikidata
Citation Angewandte Chemie 128 (2016) 7524-7528
DOI https://doi.org/10.1002/ange.201601611
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