Demulsification of crude oil emulsions tracked by pulsed field gradient NMR. Part II: Influence of chemical demulsifiers in external AC electric field

2020 ◽  
Vol 586 ◽  
pp. 124188 ◽  
Author(s):  
Tomas Nordeide Hjartnes ◽  
Sameer Mhatre ◽  
Bicheng Gao ◽  
Geir Humborstad Sørland ◽  
Sébastien Simon ◽  
...  
Keyword(s):  
Electric Field ◽  
Crude Oil ◽  
Field Gradient ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Ac Electric Field ◽  
Oil Emulsions

Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size

2019 ◽  
Author(s):  
Benjamin Egleston ◽  
Konstantin V. Luzyanin ◽  
Michael C. Brand ◽  
Rob Clowes ◽  
Michael E. Briggs ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Synthesis ◽  
Field Gradient ◽  
Window Size ◽  
Standard Approach ◽  
Porous Solids ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Cage Molecules ◽  
Gas Selectivity

Control of pore window size is the standard approach for tuning gas selectivity in porous solids. Here, we present the first example where this is translated into a molecular porous liquid formed from organic cage molecules. Reduction of the cage window size by chemical synthesis switches the selectivity from Xe-selective to CH<sub>4</sub>-selective, which is understood using <sup>129</sup>Xe, <sup>1</sup>H, and pulsed-field gradient NMR spectroscopy.

Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size

2019 ◽  
Author(s):  
Benjamin Egleston ◽  
Konstantin V. Luzyanin ◽  
Michael C. Brand ◽  
Rob Clowes ◽  
Michael E. Briggs ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Synthesis ◽  
Field Gradient ◽  
Window Size ◽  
Standard Approach ◽  
Porous Solids ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Cage Molecules ◽  
Gas Selectivity

Control of pore window size is the standard approach for tuning gas selectivity in porous solids. Here, we present the first example where this is translated into a molecular porous liquid formed from organic cage molecules. Reduction of the cage window size by chemical synthesis switches the selectivity from Xe-selective to CH<sub>4</sub>-selective, which is understood using <sup>129</sup>Xe, <sup>1</sup>H, and pulsed-field gradient NMR spectroscopy.

Lithium-ion diffusivity in complex hydrides: Pulsed-field-gradient NMR studies of LiLa(BH4)3Cl, Li3(NH2)2I and Li-1-CB9H10

2021 ◽  
Vol 362 ◽  
pp. 115585
Author(s):  
A.V. Skripov ◽  
G. Majer ◽  
O.A. Babanova ◽  
R.V. Skoryunov ◽  
A.V. Soloninin ◽  
...  
Keyword(s):  
Field Gradient ◽  
Lithium Ion ◽  
Nmr Studies ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Complex Hydrides

Influence of Water on Diffusion in Imidazolium-Based Ionic Liquids: A Pulsed Field Gradient NMR study

2009 ◽  
Vol 113 (18) ◽  
pp. 6353-6359 ◽  
Author(s):  
Amrish Menjoge ◽  
JaNeille Dixon ◽  
Joan F. Brennecke ◽  
Edward J. Maginn ◽  
Sergey Vasenkov
Keyword(s):  
Ionic Liquids ◽  
Field Gradient ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Nmr Study ◽  
Influence Of Water

Probing Ionic Association on Metal Oxide Clusters by Pulsed Field Gradient NMR Spectroscopy: The Example of Sn12–Oxo Clusters

2004 ◽  
Vol 10 (7) ◽  
pp. 1747-1751 ◽  
Author(s):  
François Ribot ◽  
Virginie Escax ◽  
José C. Martins ◽  
Monique Biesemans ◽  
Laurent Ghys ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Metal Oxide ◽  
Field Gradient ◽  
Ionic Association ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Metal Oxide Clusters
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