Single-particle dynamics of water molecules in confined space

Journal Article · Mon May 01 00:00:00 EDT 1995 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.51.4558· OSTI ID:44827

Bellissent-Funel, M; Chen, S H; Zanotti, J ^[1]

---

1. Laboratoire Leon Brillouin, Commissariat a l`Energie Atomique-Centre National de la Recherche Scientifique, Centre d`Etudes de Saclay, 91191 Gif-sur-Yvette (France)

Recent neutron scattering studies of single-particle dynamics of water molecules contained in micropores of Vycor glass are presented. Results of incoherent quasielastic and inelastic neutron scattering spectra from the confined H{sub 2}O are analyzed to obtain the elastic incoherent structure factor, the short time self-diffusion constants, the residence time for jump diffusion, the rotational relaxation time, and the proton density of states as functions of coverage and temperature. Implication for the degree of confinement and slowing down of the single-particle motions are discussed in light of available NMR relaxation data and computer molecular dynamic simulation results.

• OSTI ID: 44827
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 5 Vol. 51; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ENERGY-LEVEL DENSITY
INELASTIC SCATTERING
NEUTRON DIFFRACTION
NMR SPECTRA
POROUS MATERIALS
RELAXATION TIME
ROTATIONAL STATES
SELF-DIFFUSION
STRUCTURE FACTORS
WATER