The origin of adsorption hysteresis in porous glasses is investigated using a mean field theory and Monte Carlo simulations, utilizing a coarse-grained lattice model. Results in the hysteresis region closely agree with the behavior seen in the experiments of xenon adsorption in porous glass by Everett and co-workers (Everett, 1982). Hysteresis and scanning behavior occurs due to the presence of a very large number of metastable states. Adsorption hysteresis is dynamic in origin, but the long time dynamics is so slow that on accessible time scales, the system appears equilibrated.
| Original language | English |
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| Title of host publication | Characterization of Porous Solids VI |
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| Subtitle of host publication | Proceedings of the 6th International Symposium on the Characterization of Porous Solids (COPS-VI) |
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| Pages | 155-162 |
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| Number of pages | 8 |
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| Volume | 144 |
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| Publication status | Published - 2002 |
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| Name | Studies in Surface Science and Catalysis |
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| ISSN (Electronic) | 0167-2991 |
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