Dynamics of water confined in cage-like mesoporous silica SBA-16
SBA-16 is mesoporous silica that has well defined cage-like pores connected by cylindrical pores one another (Y.Sakamoto et al, Nature, 2000,(408),449). The water confined in SBA-16 shows complex phase behaviour: freezing at a temperature near the homogeneous nucleation temperature of ice independent of pore size, but melting at temperatures dependent on pore size, which has not so far been found for cylindrical mesoporous materials. The proposed experiment aims to investigate the slow dynamic motion of monolayer and capillary condensed (CC) water confined in SBA-16 in the supercooled state on IN11 by neutron spin-echo spectroscopy to reveal the underlying mechanism of freezing and melting of water in SBA-16.
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BELLISSENT FUNEL; FOUQUET Peter; KITTAKA Shigeharu; YAMAGUCHI Toshio and YOSHIDA Koji. (2012). Dynamics of water confined in cage-like mesoporous silica SBA-16. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-02-491
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