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Lamellar carbon-aluminosilicate nanocomposites with macroscopic orientation.

Dragana Paripović,L. Hartmann,Hans‐Georg Steinrück,A. Magerl,G. Li-Destri,Y. Fontana,A. Fontcuberta i Morral,E. Oveisi,Enzo Bomal,H. Frauenrath

Published 2021 in Nanoscale

ABSTRACT

Novel preparative approaches towards lamellar nanocomposites of carbon and inorganic materials are relevant for a broad range of technological applications. Here, we describe how to utilize the co-assembly of a liquid-crystalline hexaphenylene amphiphile and an aluminosilicate precursor to prepare carbon-aluminosilicate nanocomposites with controlled lamellar orientation and macroscopic order. To this end, the shear-induced alignment of a precursor phase of the two components resulted in thin films comprising lamellae with periodicities on the order of the molecular length scale, an "edge-on" orientation relative to the substrate and parallel to the shearing direction with order on the centimeter length scale. The lamellar structure, orientation, and macroscopic alignment were preserved in the subsequent pyrolysis that yielded the corresponding carbon-aluminosilicate nanocomposites.

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