Dynamics at surfaces: Probing the dynamics of polar and a-polar liquids at silica and vapour surfaces

J. Beau W. Webber, John H. Strange, Philip A. Bland, Ross Anderson, Bahman Tohidi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)
15 Downloads (Pure)

Abstract

Recent studies by Nuclear Magnetic Resonance and Neutron Scattering of the dynamics and phase-fractions of water/ice systems in templated porous silicas (SBA-15) indicate that what was believed to be a non-frozen surface water layer is actually plastic ice, the quantity varying (continuously and reversibly) with temperature, and converting to a brittle (mainly cubic) ice at lower temperatures. Current research relates to the study the dynamics of polar water/ice and a-polar organics at both solid and vapour interfaces. The polar results are significant for water/ice systems in the environment, where snow-packs, glaciers and icebergs are common examples of water/ice systems with extensive air/vapour interfaces. This research also points the way forward for wide-range cryoporometric metrology in 'difficult' systems such as high iron content clays and rocks, as well as aged concrete. Results are presented for cryoporometric measurements on meteorite samples with a significant metallic content, exhibiting T2* relaxation times down to 2.5ms. © 2008 American Institute of Physics.

Original languageEnglish
Title of host publicationMagnetic Resonance in Porous Media
Subtitle of host publicationProceedings of the 9th International Bologna Conference on Magnetic Resonance in Porous Media (MRPM9)
PublisherAIP Publishing
Pages51-54
Number of pages4
ISBN (Print)9780735406124
DOIs
Publication statusPublished - 5 Dec 2008
Event9th International Bologna Conference on Magnetic Resonance in Porous Media - Cambridge, MA, United States
Duration: 13 Jul 200817 Jul 2008

Publication series

NameAIP Conference Proceedings
PublisherAIP Publishers
Number1
Volume1081
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th International Bologna Conference on Magnetic Resonance in Porous Media
Abbreviated titleMRPM9
CountryUnited States
CityCambridge, MA
Period13/07/0817/07/08

Keywords

  • Confined geometry
  • Cryoporometry
  • DSC
  • Gibbs-Thomson
  • Meteorite
  • Neutron diffraction
  • Neutron scattering
  • NMR
  • NMR relaxation
  • Phase-change
  • Plastic ice
  • Porosity
  • Porous silica
  • Thermoporosimetry

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  • Cite this

    Webber, J. B. W., Strange, J. H., Bland, P. A., Anderson, R., & Tohidi, B. (2008). Dynamics at surfaces: Probing the dynamics of polar and a-polar liquids at silica and vapour surfaces. In Magnetic Resonance in Porous Media: Proceedings of the 9th International Bologna Conference on Magnetic Resonance in Porous Media (MRPM9) (pp. 51-54). (AIP Conference Proceedings; Vol. 1081, No. 1). AIP Publishing. https://doi.org/10.1063/1.3058545