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Updated: Feb 26, 2026

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
Published on: November 5, 2015
In Situ Crystallization of the Insoluble Anhydrite AII Phase in Graphene Pockets
Tibor Lehnert1, Michael K Kinyanjui1, Anita Ladenburger1
1Materialwissenschaftliche Elektronenmikroskopie and ‡Institut für Analytische und Bioanalytische Chemie, Universität Ulm , Albert-Einstein-Allee 11, 89081 Ulm, Germany.
Abstract:
Single-distilled water encapsulated in graphene pockets has been studied by aberration-corrected high-resolution transmission electron microscopy and electron energy loss spectroscopy at an acceleration voltage of 80 kV. Inside the graphene pockets, crystallization and in situ crystal growth are reported and identified as the insoluble AII phase of CaSO4 (anhydrite) in a quasi-two-dimensional system. Its formation condition is discussed with respect to the possible temperature and van der Waals pressure between the graphene sheets.
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