A low cost, portable NMR probe for high pressure, MR relaxometry

Kerr, Julia D.; Balcom, Bruce J.; McCarthy, Michael J.; Augustine, Matthew P.

doi:10.1016/j.jmr.2019.05.001

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…Apart from these specialized designs, contemporary developments also utilize simple 14 and miniaturized 15,16 HP systems. However, a HP vessel in shape similar to a standard NMR tube is predominantly employed in commercially available NMR spectrometers.…”

Section: Introductionmentioning

confidence: 99%

“…10 A different HP NMR design is the diamond anvil cell, 11 with which ultra-high pressures of up to 202 GPa were reached 12 and that can be used for benchtop applications. 13 Apart from these specialized designs, contemporary developments also utilize simple 14 and miniaturized 15,16 HP systems. However, a HP vessel in shape similar to a standard NMR tube is predominantly employed in commercially available NMR spectrometers.…”

Section: Introductionmentioning

confidence: 99%

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Refined high-pressure tube design for improved resolution in high-pressure NMR spectroscopy

Duchowny

Restrepo

Adams

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Refined high-pressure tube design for improved resolution in high-pressure NMR spectroscopy

Duchowny

Restrepo

Adams

et al. 2022

Analyst

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X‐Ray, LIBS, NMR, and MS Applications in Food, Feed, and Agriculture

Beć

Grabska

Huck

2021

Portable Spectroscopy and Spectrometry

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Low‐Field NMR Relaxation Analysis of High‐Pressure Ethane Adsorption in Mesoporous Silicas

et al. 2022

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Understanding the behaviour of short‐chain hydrocarbons confined to porous solids informs the targeted extraction of natural resources from geological features, and underpins rational developments in separation, storage and catalytic conversion processes. Herein, we report the application of low‐field (12.7 MHz) 1H nuclear magnetic resonance (NMR) relaxation measurements to characterise ethane dynamics within mesoporous silica materials exhibiting mean pore diameters between 6 and 50 nm. Our measurements provide NMR‐based adsorption isotherms within the range 25–50 bar and at ambient temperature, incorporating the ethane condensation point (40.7 bar at our experimental temperature of 23.6 °C). The quantitative nature of the acquired data is validated via a direct comparison of NMR‐derived excess adsorption capacities with ex situ gravimetric ethane adsorption measurements, which are demonstrated to agree to within 0.2 mmol g−1 of the observed ethane capacity. NMR T2 relaxation time distributions are further demonstrated as a means to decouple interparticle and mesopore dominated adsorption phenomena, with unexpectedly rapid relaxation rates associated with interparticle ethane gas confirmed via a direct comparison with NMR self‐diffusion analysis.

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A low cost, portable NMR probe for high pressure, MR relaxometry

Cited by 5 publications

References 15 publications

Refined high-pressure tube design for improved resolution in high-pressure NMR spectroscopy

Refined high-pressure tube design for improved resolution in high-pressure NMR spectroscopy

X‐Ray, LIBS, NMR, and MS Applications in Food, Feed, and Agriculture

Low‐Field NMR Relaxation Analysis of High‐Pressure Ethane Adsorption in Mesoporous Silicas

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