Abstract

Experimental techniques for studying the behaviour of water in confined geometry usingneutron scattering and NMR methods are reviewed. A brief survey is given of earlier workon sol–gel silicas and these findings are updated by reference to current work on MCM- andSBA-type silicas. Particular attention is focused on the phase transitions and the relationbetween supercooled water and ice phases in the confined geometry of the mesopores. Thecharacteristics are found to behave in a systematic manner although the nucleationphenomenon for partially filled pores reveals some unexpected complexity for the SBAsilicas.

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