Enhanced self-diffusion of water in restricted geometry

Franco Dorazio, Sankar Bhattacharja, William P. Halperin, Rosario Gerhardt

Research output: Contribution to journalArticlepeer-review

96 Scopus citations


Self-diffusion of water contained in a porous glass is observed to be strongly enhanced if the pore space is only partially filled. This can be explained by a novel mechanism involving indirect molecular exchange between the liquid and the vapor phase. A theoretical model fits the pulsed-field-gradient NMR diffusion measurements with no adjustable parameters. NMR relaxation measurements were performed to provide a characterization of the homogeneity of the samples.

Original languageEnglish (US)
Pages (from-to)43-46
Number of pages4
JournalPhysical review letters
Issue number1
StatePublished - 1989

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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