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arXiv · 1506.08992

Crystal Templating with Mutually Miscible Solvents: A Simple Path to Hierarchical Porosity

Christian Guizard·Jérôme Leloup·Sylvain Deville
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Abstract

Ice templating, a route where ice crystals are used to template macroporosity, has been used to process a variety of materials with one level of macropores. We demonstrate here a variant of ice templating based on the solidification of mutually miscible solvents. The solidification of different phases, each defined by their own size and morphology, provides a simple one-step processing route for materials with hierarchical porosity defined by up to three levels of macroporosity. These concepts are demonstrated with both ceramic (yttria-stabilized zirconia) and polymer (polyvinyl alcohol) materials.

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Christian Guizard, Jérôme Leloup, Sylvain Deville. 2015-06-30. Crystal Templating with Mutually Miscible Solvents: A Simple Path to Hierarchical Porosity. https://doi.org/10.1111/jace.12995

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