All Outputs (6)

Hyperpolarised xenon MRI and time-resolved X-ray computed tomography studies of structure-transport relationships in hierarchical porous media (2020)
Journal Article
Hill-Casey, F., Hotchkiss, T., Hardstone, K. A., Hitchcock, I., Novak, V., Schlepütz, C. M., …Rigby, S. P. (2021). Hyperpolarised xenon MRI and time-resolved X-ray computed tomography studies of structure-transport relationships in hierarchical porous media. Chemical Engineering Journal, 405, Article 126750. https://doi.org/10.1016/j.cej.2020.126750

© 2020 Elsevier B.V. Catalysed diesel particulate filter (DPF) monoliths are hierarchical porous solids, as demonstrated by mercury porosimetry. Establishing structure-transport relationships, including assessing the general accessibility of the cata... Read More about Hyperpolarised xenon MRI and time-resolved X-ray computed tomography studies of structure-transport relationships in hierarchical porous media.

Structural and chemical heterogeneity in ancient glass probed using gas overcondensation, X-ray tomography, and solid-state NMR (2020)
Journal Article
Rigby, S. P., Stevens, L., Meersmann, T., Pavlovskaya, G. E., Rees, G. J., Henderson, J., …Fletcher, R. S. (2020). Structural and chemical heterogeneity in ancient glass probed using gas overcondensation, X-ray tomography, and solid-state NMR. Materials Characterization, 167, Article 110467. https://doi.org/10.1016/j.matchar.2020.110467

Rare ancient glasses have complex, multi-scale structures requiring more sophisticated and non-destructive pore characterisation techniques than usual. Homotattic patch models for nitrogen adsorption gave better fits to the isotherm data, more accura... Read More about Structural and chemical heterogeneity in ancient glass probed using gas overcondensation, X-ray tomography, and solid-state NMR.

In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI (2019)
Journal Article
Burueva, D. B., Pokochueva, E. V., Wang, X., Filkins, M., Svyatova, A., Rigby, S. P., …Koptyug, I. V. (2020). In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI. ACS Catalysis, 10(2), 1417-1422. https://doi.org/10.1021/acscatal.9b05000

Fluid flow in a porous medium with transverse permeability discontinuity (2018)
Journal Article
Pavlovskaya, G. E., Meersmann, T., Jin, C., & Rigby, S. P. (2018). Fluid flow in a porous medium with transverse permeability discontinuity. Physical Review Fluids, 3(4), https://doi.org/10.1103/PhysRevFluids.3.044102

Magnetic Resonance Imaging (MRI) velocimetry methods were used to study fully developed axially symmetric fluid flow in a model porous medium of cylindrical symmetry with a transverse permeability discontinuity. Spatial mapping of fluid ow resulted i... Read More about Fluid flow in a porous medium with transverse permeability discontinuity.

Statistics of highly heterogeneous flow fields confined to three-dimensional random porous media (2016)
Journal Article
Jin, C., Langston, P. A., Pavlovskaya, G. E., Hall, M. R., & Rigby, S. P. (2016). Statistics of highly heterogeneous flow fields confined to three-dimensional random porous media. Physical Review E, 93(1), 1-10. https://doi.org/10.1103/PhysRevE.93.013122

© 2016 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and t... Read More about Statistics of highly heterogeneous flow fields confined to three-dimensional random porous media.

NMR imaging of low pressure, gas-phase transport in packed beds using hyperpolarized xenon-129 (2015)
Journal Article
Pavlovskaya, G., Six, J. S., Meersman, T., Gopinathan, N., & Rigby, S. P. (2015). NMR imaging of low pressure, gas-phase transport in packed beds using hyperpolarized xenon-129. AIChE Journal, 61(11), 4013-4019. https://doi.org/10.1002/aic.14929

© 2015 American Institute of Chemical Engineers. Gas-phase magnetic resonance imaging (MRI) has been used to investigate heterogeneity in mass transport in a packed bed of commercial, alumina, catalyst supports. Hyperpolarized 129Xe MRI enables study... Read More about NMR imaging of low pressure, gas-phase transport in packed beds using hyperpolarized xenon-129.