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Structural studies of water in confined geometry by neutron diffraction

(2000) Structural studies of water in confined geometry by neutron diffraction. Chemical Physics, 258 (2-3). pp. 327-347. ISSN 0301-0104. (doi:10.1016/s0301-0104(00)00208-1) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:16393)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL
http://dx.doi.org/10.1016/s0301-0104(00)00208-1

Abstract

Water in confined geometry shows significant modification in its structural characteristics from water in the bulk phase. Neutron diffraction studies may be used to investigate the modifications to the local molecular environment. It is found that the hydrogen bonding is enhanced in the confined state and the nucleation temperature is depressed. The diffraction studies show that there is a systematic variation in the structure factor, which is similar to that of the bulk phase but shifted in temperature. The behaviour at low temperatures is due to the formation of an extended hydrogen-bonded network similar to that of amorphous ice. The confined liquid eventually nucleates with the formation of a defective form of cubic ice rather than hexagonal ice formed in the bulk phase. The studies have been made primarily for mesoporous silicas but some preliminary results are also given for water in a lamellar liquid crystal. The results have relevance to the behaviour of interfacial water in membranes and biological systems. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

Item Type: Article
DOI/Identification number: 10.1016/s0301-0104(00)00208-1
Subjects: Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: P. Ogbuji
Date Deposited: 21 Mar 2009 01:21 UTC
Last Modified: 16 Nov 2021 09:54 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/16393 (The current URI for this page, for reference purposes)
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