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Updated: Sep 27, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Effects of pore walls and randomness on phase transitions in porous media
Marek Cieplak1, Amos Maritan, Michael R Swift
1Department of Physics and Materials Research Institute, 104 Davey Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Abstract:
We study spin models within the mean field approximation to elucidate the topology of the phase diagrams of systems modeling the liquid-vapor transition and the separation of 3He-4He mixtures in periodic porous media. These topologies are found to be identical to those of the corresponding random field and random anisotropy spin systems with a bimodal distribution of the randomness. Our results suggest that the presence of walls (periodic or otherwise) are a key factor determining the nature of the phase diagram in porous media.
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