Authors: Matthew M Hall Alexis G Clare
Publish Date: 2007/01/10
Volume: 41, Issue: 2, Pages: 107-112
Abstract
Sonochemical processing techniques may be used to create fully miscible sols without the initial addition of a solvent However by intentionally adding excess alcohol to a sol produced by sonication it is possible to manipulate the porosity of the resulting sonogel Sonogels of systematically varied methanol content were prepared using a twostep process with subsequent drying at 60°C The asprepared sol with no excess methanol produced a purely microporous solid The addition of excess methanol to the sol resulted in the formation of mixed microporosity and mesoporosity as revealed by nitrogen gas adsorption and transmission electron microscopy
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