Can graphite be driven to delaminate osmotically into single platelets?
2D matter provides interesting electrical or optical material properties due to inherent structural anisotropy. To achieve best directional dependent performance often monolayers are required. We believe that we are the first succeeding in a force free delamination of graphite to graphene (osmotic swelling) and want to prove it by SANS. Via an intercalation reaction of graphite with a potassium crown ether complex, the interlayer spacing of graphite is expanded from 3.35 Å to 12 Å. Afterwards, due to the solvation of the interlayer cation in dimethylsulfoxide (DMSO) osmotic swelling is performed. Those delaminated gels we aim to investigate by contrast variation series (in solvent mixtures of H/D-DMSO 0:100, 50:50 and 100:0 v/v). To obtain our aim we need precise absolute intensities with good statistics and low background and a wide q-range. Thus, we it would be very kind if you could measure at least 2 of the samples (fully deuterated, fully protonated) and the corresponding solvents (needed as references during evaluation) at the D22. More information about samples and scientific question will be provided to the local contact.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
ROSENFELDT Sabine and SCHWEINS Ralf. (2021). Can graphite be driven to delaminate osmotically into single platelets?. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.EASY-1052
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This data is not yet public
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