2018
DOI: 10.1021/acscentsci.8b00669
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A Telescoping View of Solute Architectures in a Complex Fluid System

Abstract: Short- and long-range correlations between solutes in solvents can influence the macroscopic chemistry and physical properties of solutions in ways that are not fully understood. The class of liquids known as complex (structured) fluids—containing multiscale aggregates resulting from weak self-assembly—are especially important in energy-relevant systems employed for a variety of chemical- and biological-based purification, separation, and catalytic processes. In these, solute (mass) transfer across liquid–liqu… Show more

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Cited by 64 publications
(75 citation statements)
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“…Small angle X-ray and neutron scattering (SAXS and SANS, respectively) have been the principal techniques in this effort and they show the link between aggregation structures on extraction efficiency and third phase formation (an undesired fluid-fluid phase transition and splitting due to high metal loading) in different extraction systems. [26][27][28][29][30][31][32][33][34] A significant portion of these studies used Baxter's sticky hard sphere model to describe the interactions between reverse micellar (RM) aggregates. In Baxter model, spherical aggregates attract each other when they are very close and show hard sphere repulsion when the distance between their centers is less than or equal to their hard sphere diameter (See results and discussion for details).…”
mentioning
confidence: 99%
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“…Small angle X-ray and neutron scattering (SAXS and SANS, respectively) have been the principal techniques in this effort and they show the link between aggregation structures on extraction efficiency and third phase formation (an undesired fluid-fluid phase transition and splitting due to high metal loading) in different extraction systems. [26][27][28][29][30][31][32][33][34] A significant portion of these studies used Baxter's sticky hard sphere model to describe the interactions between reverse micellar (RM) aggregates. In Baxter model, spherical aggregates attract each other when they are very close and show hard sphere repulsion when the distance between their centers is less than or equal to their hard sphere diameter (See results and discussion for details).…”
mentioning
confidence: 99%
“…32,36 Motokawa et al, have developed a model for the clustering interactions between the metal-extractant complexes based on molecular level details 34. Their model does not include the effects of metal-free aggregates on clustering.…”
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confidence: 99%
“…The best-fit curves for the SANS profiles for L2 were obtained using the hard-sphere model, with optimized solute structures provided by DFT calculations 14 (see Supporting Information), with the radii varying slightly from 9.7 ± 1.3 Å for (L2D•Cl)2 to 10.9 ± 1.…”
Section: Sansmentioning
confidence: 99%
“…13,15 Ion transfer between two phases and its driving force have been the subject of many kinetic, thermodynamic, theoretical, and modeling studies which require years of research with yet many remaining unknowns. 11,[16][17][18][19][20][21][22] In addition to this complexity, even when promising hydrometallurgy processes are described, their use by the recycling industry is hindered by the cost associated with the use of very low pH and the variability in the elemental composition from one waste lot to the other. The industry is therefore not only in need of more efficient approaches that can work at higher pH and show higher performances but also of methods enabling a faster speed of process development or adjustment.…”
Section: Introductionmentioning
confidence: 99%