Determination of pore sizes and volumes of porous materials by (sup 129)Xe NMR of xenon gas dissolved in a medium

Article Abstract:

The possibilities and limitations of the work that (super 129) Xe NMR of xenon dissolved in a medium confined to pores that can be used for a detailed characterization of the properties of porous materials are discussed. In conclusion, xenon porometry is shown to be an efficient method for characterization of porous materials by simple and fast NMR measurements, and the measurements reveal detailed information on the behavior of media in confinement.

Methods, Nuclear magnetic resonance, Porous materials

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Probing the alkyl ligands on silylated mesoporous MCM-41 using hyperpolarized (super 129)Xe NMR spectroscopy

Article Abstract:

The surface properties of mesoporous MCM-41 modified by silylation treatment were characterized using variable-temperature hyperpolarized (HP) (super 129)Xe NMR spectroscopy. The deshielding medium contribution due to individual alkyl ligand can be deduced based on the group contribution analysis revealing the potential use of HP (super 129)Xe NMR for probing the surface properties of organic-functionalized porous materials.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Multichip Hybrid Circuits, Usage, Nuclear magnetic resonance spectroscopy, Multichip module, Multichip modules

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Quantifying the diffusion of a fluid through membranes by double phase encoded remote detection magnetic resonance imaging

Article Abstract:

The double phase encoded remote detection magnetic resonance imaging (MRI) is employed for measuring the diffusion of any fluid through membranes. The approach is found to be extremely useful, as correlation image gives a direct view of the propagation of fluid molecules.

Science & research, Research, Analysis, Magnetic resonance imaging, Membranes (Biology), Diffusion, Diffusion (Physics), Properties

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