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Nuclear magnetic resonance cryoporometry

Mitchell, J., Webber, J. Beau W., Strange, John H. (2008) Nuclear magnetic resonance cryoporometry. Physics Reports, 461 (1). pp. 1-36. ISSN 0370-1573. (doi:10.1016/j.physrep.2008.02.001) (KAR id:13467)

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Nuclear Magnetic Resonance (NMR) cryoporometry is a technique for non-destructively determining pore size distributions in porous media through the observation of the depressed melting point of a confined liquid. It is suitable for measuring pore diameters in the range 2 nm-1 mu m, depending on the absorbate. Whilst NMR cryoporometry is a perturbative measurement, the results are independent of spin interactions at the pore surface and so can offer direct measurements of pore volume as a function of pore diameter. Pore size distributions obtained with NMR cryoporometry have been shown to compare favourably with those from other methods such as gas adsorption, DSC thermoporosimetry, and SANS. The applications of NMR cryoporometry include studies of silica gels, bones, cements, rocks and many other porous materials. It is also possible to adapt the basic experiment to provide structural resolution in spatially-dependent pore size distributions, or behavioural information about the confined liquid.

Item Type: Article
DOI/Identification number: 10.1016/j.physrep.2008.02.001
Uncontrolled keywords: NMR; cryoporometry; pore size distributions; Gibbs-Thomson equation
Subjects: Q Science > QC Physics
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: J.B.W. Webber
Date Deposited: 18 Apr 2009 09:14 UTC
Last Modified: 28 May 2019 13:50 UTC
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