Dr. J. Beau W. Webber (Lab-Tools Ltd. Ltd. (nano-science), UK)
LinkedIn: J. Beau W. Webber
Abstract: We have developed highly compact benchtop/mobile Time-domain NMR Spectrometers for physical materials-science of polymers, foods, and porous rocks.
Pore-size distributions :
Gibbs–Thomson equation for the melting point depression, Tm, for a small isolated spherical crystal, of diameter x, in its own liquid, may be expressed as [1] :
Delta T_m=T_m^infty-T_mleft(xright)=frac{4sigma_{sl}T_m^infty}{xDelta H_frho_s
Using this Cryoporometric technique, we have measured pore-volume and pore size distribution on 10 samples of North Sea sandstone porous rock, from the National Geological Repository at the British Geological Survey (UKRI).
Quantity and viscosity of bulk and the as-recovered liquids :
We have also developed a novel technique for determining quantified viscosity, using NMR T1ρ [2], and measured the quantity and viscosity of the as-recovered liquids in the porous rocks.
References :
1. Nuclear Magnetic Resonance Cryoporometry J. Mitchell, J. Beau W. Webber and J.H. Strange. Physics Reports, 461, 1-36, 2008. DOI: 10.1016/j.physrep.2008.02.001
2. Quantified Measurements of Viscosity in The Bulk and In Pores, Using NMR Spin-lattice Relaxation in The Rotating Frame J. Beau W. Webber, Philip M. Singer, Dave M. Pickup. Quantitative NMR Journal, Vol. 1 No. 1 (2026): Volume 1, Issue 1 https://qnmrjournal.com/index.php/qNMR/article/view/8/
3. NMR spectrometers that go places others can’t. J. Beau W. Webber, David Pickup. Nat Rev Chem (2026). DOI: 10.1038/s41570-026-00851-6
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