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Compressibility of Lithium Hexafluorophosphate Solutions in Two Carbonate Solvents
[Image: see text] Speed-of-sound measurements are performed to establish how the isentropic bulk modulus K(s) of the electrolyte system comprising lithium hexafluorophospate (LiPF(6)) in blends of propylene carbonate (PC) and ethyl methyl carbonate (EMC) varies with salt molality m, mass fraction of...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10108564/ https://www.ncbi.nlm.nih.gov/pubmed/37084176 http://dx.doi.org/10.1021/acs.jced.2c00711 |
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author | Wang, Andrew A. Persa, Delia Helin, Sara Smith, Kirk P. Raymond, Jason L. Monroe, Charles W. |
author_facet | Wang, Andrew A. Persa, Delia Helin, Sara Smith, Kirk P. Raymond, Jason L. Monroe, Charles W. |
author_sort | Wang, Andrew A. |
collection | PubMed |
description | [Image: see text] Speed-of-sound measurements are performed to establish how the isentropic bulk modulus K(s) of the electrolyte system comprising lithium hexafluorophospate (LiPF(6)) in blends of propylene carbonate (PC) and ethyl methyl carbonate (EMC) varies with salt molality m, mass fraction of PC in the PC:EMC cosolvent f, and temperature T. Bulk moduli are calculated by combining acoustic time-of-flight data between parallel walls of a liquid-filled cuvette with densitometric data for a sequence of binary and ternary salt solutions. Correlations are presented to yield K(s) (m, f, T) accurately for nine compositions spanning the range m = 0–2 mol kg(–1) and f = 0–1, at temperatures T ranging from 283.15 to 313.15 K. Electrolyte compressibility varies most with solvent ratio, followed by salt content and temperature, with K(s) ranging from 1 to 3 GPa. Composition-dependent acoustical properties elucidate the nature of speciation and solvation states in bulk electrolytes, and could be useful to identify the features of individual phases within solution-permeated porous electrodes. |
format | Online Article Text |
id | pubmed-10108564 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-101085642023-04-18 Compressibility of Lithium Hexafluorophosphate Solutions in Two Carbonate Solvents Wang, Andrew A. Persa, Delia Helin, Sara Smith, Kirk P. Raymond, Jason L. Monroe, Charles W. J Chem Eng Data [Image: see text] Speed-of-sound measurements are performed to establish how the isentropic bulk modulus K(s) of the electrolyte system comprising lithium hexafluorophospate (LiPF(6)) in blends of propylene carbonate (PC) and ethyl methyl carbonate (EMC) varies with salt molality m, mass fraction of PC in the PC:EMC cosolvent f, and temperature T. Bulk moduli are calculated by combining acoustic time-of-flight data between parallel walls of a liquid-filled cuvette with densitometric data for a sequence of binary and ternary salt solutions. Correlations are presented to yield K(s) (m, f, T) accurately for nine compositions spanning the range m = 0–2 mol kg(–1) and f = 0–1, at temperatures T ranging from 283.15 to 313.15 K. Electrolyte compressibility varies most with solvent ratio, followed by salt content and temperature, with K(s) ranging from 1 to 3 GPa. Composition-dependent acoustical properties elucidate the nature of speciation and solvation states in bulk electrolytes, and could be useful to identify the features of individual phases within solution-permeated porous electrodes. American Chemical Society 2023-03-14 /pmc/articles/PMC10108564/ /pubmed/37084176 http://dx.doi.org/10.1021/acs.jced.2c00711 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Wang, Andrew A. Persa, Delia Helin, Sara Smith, Kirk P. Raymond, Jason L. Monroe, Charles W. Compressibility of Lithium Hexafluorophosphate Solutions in Two Carbonate Solvents |
title | Compressibility
of Lithium Hexafluorophosphate Solutions
in Two Carbonate Solvents |
title_full | Compressibility
of Lithium Hexafluorophosphate Solutions
in Two Carbonate Solvents |
title_fullStr | Compressibility
of Lithium Hexafluorophosphate Solutions
in Two Carbonate Solvents |
title_full_unstemmed | Compressibility
of Lithium Hexafluorophosphate Solutions
in Two Carbonate Solvents |
title_short | Compressibility
of Lithium Hexafluorophosphate Solutions
in Two Carbonate Solvents |
title_sort | compressibility
of lithium hexafluorophosphate solutions
in two carbonate solvents |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10108564/ https://www.ncbi.nlm.nih.gov/pubmed/37084176 http://dx.doi.org/10.1021/acs.jced.2c00711 |
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