According to classical nucleation theory, the nucleation kinetics of new phases on an underlying solid substrate are highly sensitive to the substrate-water interfacial energy and, hence, to the hydrophilicity of the substrate. Experimental data on the nucleation kinetics of amorphous calcium carbonate (ACC) at various mica-water interfaces are consistent with the expected trends. Here, we use molecular dynamics (MD) simulations supported by X-ray reflectivity and X-ray photoelectron spectroscopy results to gain insight into the nanoscale basis of mica hydrophilicity. In particular, we examine the structural and thermodynamic properties of water adsorbed on hydroxylated and fluorinated phlogopite mica surfaces for a range of water contents from single molecules to clusters, films, and droplets.

Water uptake at the mica-water interface: From single molecules to clusters, films, and droplets

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.