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A growing number of classes of organic (macro)molecular materials have been trapped into inorganic crystalline hosts, such as calcite single crystals, without significantly disrupting their crystalline lattices. Inclusion of an organic phase plays a key role in enhancing the mechanical properties of the crystals, which are believed to share structural features with biogenic minerals. Here we report the synthesis and mechanical characterization of composite calcite/SWCNT–COOH single crystals. Once entrapped into the crystals SWCNT–COOH appeared both as aggregates of entangled bundles and nanoropes. Their observation was possible only after crystal etching, fracture or FIB (focused ion beam) cross-sectioning. SWCNT–COOHs occupied a small volume fraction and were randomly distributed into the host crystal. They did not strongly affect the crystal morphology. However, although the Young's modulus of …
Royal Society of Chemistry
Publication date: 
1 Jan 2013

Matteo Calvaresi, Giuseppe Falini, Luca Pasquini, Michela Reggi, Simona Fermani, Gian Carlo Gazzadi, Stefano Frabboni, Francesco Zerbetto

Biblio References: 
Volume: 5 Issue: 15 Pages: 6944-6949