Molecular Intercalation Reactions in Lamellar Compounds
| Autor: | W. S. Glaunsinger, M. J. McKelvy |
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| Rok vydání: | 1990 |
| Předmět: | |
| Zdroj: | Annual Review of Physical Chemistry. 41:497-523 |
| ISSN: | 1545-1593 0066-426X |
| DOI: | 10.1146/annurev.pc.41.100190.002433 |
| Popis: | Intercalation compounds are formed by the insertion of guest species into available sites in a host structure. Ideally, intercalation reactions are reversible, so that the original guest and host can be regenerated. Lamellar hosts provide the greatest structural flexibility for car rying out these reac tions because the covalently bonded host layers can be separated by large distances to accommodate the guest in thc so-called van der Waals gap of the host. A schematic diagram of the intercalation process for a layered host is illustrated in Figure I. A typical sequence of events for simple intercalation reactions involves (a) initial interaction of the guest with the host to facilitate layer opening, (b) initial penetration of the guest into the host, (c) diffusion of the guest species to interlayer sites to optimize guest guest and guest-host interactions, and (d) continued entry of the guest into the host until equilibrium is achieved. |
| Databáze: | OpenAIRE |
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