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Studies of water at inorganic solid surfaces

After a brief review of calorimetric evidences from experiments performed on confined water, we describe the results of a neutron diffraction experiment performed on water confined in MCM41-S-15. This, inequivocally shows that, when the size of the confining volume is small enough, water occupies the available volume in a seriously inhomogeneous manner and that the coexistence of different phases, microcrystals and void regions cannot be excluded. Upon cooling the sample a more uniform filling of the pores can be obtained, and the microscopic structure of water changes accordingly, recovering a more tetrahedral simmetry. The consequences of these results on the interpretation of other independent experiments are also considered.

Publication details

Print publication date
25 Nov 2011
Copyright year
2012
Print ISBN
978-1-84973-152-2
PDF eISBN
978-1-84973-283-3