Bioinspired nanocomposites: Ordered 2D materials within a 3D lattice
November 10-14, 2019
Advanced composites are used in a variety of industrial applications and therefore attract much scientific interest. We recently developed a novel carbon‐based nanocomposite via incorporation of graphene oxide (GO) into the crystal lattice of single crystals of calcite . Incorporation of a 2D organic material into single‐crystal lattices has never before been reported. To characterize the resulting nanocomposites, high‐resolution synchrotron powder X‐ray diffraction, electron microscopy, transmission electron microscopy, fluorescence microscopy and nanoindentation tests are employed. A detailed analysis reveals a layered distribution of GO sheets incorporated within the calcite host (Fig. 1). Moreover, the optical and mechanical properties of the calcite host are altered when a carbon‐based nanomaterial is introduced into its lattice. Compared to pure calcite, GO/calcite composite crystals exhibit lower elastic modulus and higher hardness. The results of this study show that the incorporation of a 2D material within a 3D crystal lattice is not only feasible but also can lead to the formation of hybrid crystals exhibiting new properties.
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Iryna Polishchuk, Giuseppe Falini, and Boaz Pokroy, "Bioinspired nanocomposites: Ordered 2D materials within a 3D lattice" in "Composites at Lake Louise 2019", John Kieffer, University of Michigan, USA Erik Spoeke, Sandia National Laboratories, USA Meisha Shofner, Georgia Institution of Technology, USA Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/composites_all_2019/24