Slow dynamics of supercooled water confined in nanoporous silica materials

L. Liu, A. Faraone, C. Y. Mou, C. W. Yen, S. H. Chen

Research output: Contribution to journalReview articlepeer-review

89 Citations (Scopus)

Abstract

The incoherent quasielastic neutron scattering (QENS) studies of the dynamics of supercooled water confined in nanoporous silica materials were reviewed. QENS data were analyzed by using the relaxing cage model (RCM). The molecular dynamics (MD) simulation of the extended simple point charge model (SPC/E) for bulk supercooled water was used to establish the validity of the RCM, which applies to both the translational and rotational motion of water molecules. It was assumed that the dynamics of water molecules in the vicinity of a hydrophilic surface was similat to a bulk water at an equivalent lower supercooled temperature. The relaxational dynamics of water confined in mesoporous matrices were studied using dielectric spectroscopy.

Original languageEnglish
Pages (from-to)S5403-S5436
JournalJournal of Physics Condensed Matter
Volume16
Issue number45
DOIs
Publication statusPublished - Nov 17 2004
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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