Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling
Abstract The relationship between structure and ion transport in liquid electrolyte solutions is not well understood over the whole concentration and temperature ranges. In this work, we have studied the ionic conductivity (κ) as a function of molar fraction (x) and Temperature (T) for aqueous solut...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-09-01
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| Series: | Communications Chemistry |
| Online Access: | https://doi.org/10.1038/s42004-023-00993-4 |
| _version_ | 1797577591710810112 |
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| author | Hilal Al-Salih Elena A. Baranova Yaser Abu-Lebdeh |
| author_facet | Hilal Al-Salih Elena A. Baranova Yaser Abu-Lebdeh |
| author_sort | Hilal Al-Salih |
| collection | DOAJ |
| description | Abstract The relationship between structure and ion transport in liquid electrolyte solutions is not well understood over the whole concentration and temperature ranges. In this work, we have studied the ionic conductivity (κ) as a function of molar fraction (x) and Temperature (T) for aqueous solutions of salts with nitrate anion and different cations (proton, lithium, calcium, and ammonium) along with their liquid-solid phase diagrams. The connection between the known features in the phase diagrams and the ionic conductivity isotherms is established with an insight on the conductivity mechanism. Also, known isothermal (κ vs.. x) and iso-compositional (κ vs.. T) equations along with a proposed two variables semi-empirical model (κ = f (x, T)) were fitted to the collected data to validate their accuracy. The role of activation energy and free volume in controlling ionic conductivity is discussed. This work brings us closer to the development of a phenomenological model to describe the structure and transport in liquid electrolyte solutions. |
| first_indexed | 2024-03-10T22:10:17Z |
| format | Article |
| id | doaj.art-5e39e7874a9444b592896f29ba925efd |
| institution | Directory Open Access Journal |
| issn | 2399-3669 |
| language | English |
| last_indexed | 2024-03-10T22:10:17Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Chemistry |
| spelling | doaj.art-5e39e7874a9444b592896f29ba925efd2023-11-19T12:37:24ZengNature PortfolioCommunications Chemistry2399-36692023-09-016111310.1038/s42004-023-00993-4Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modelingHilal Al-Salih0Elena A. Baranova1Yaser Abu-Lebdeh2Department of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of OttawaDepartment of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of OttawaEnergy, Mining, and Environment Research Centre, National Research Council of CanadaAbstract The relationship between structure and ion transport in liquid electrolyte solutions is not well understood over the whole concentration and temperature ranges. In this work, we have studied the ionic conductivity (κ) as a function of molar fraction (x) and Temperature (T) for aqueous solutions of salts with nitrate anion and different cations (proton, lithium, calcium, and ammonium) along with their liquid-solid phase diagrams. The connection between the known features in the phase diagrams and the ionic conductivity isotherms is established with an insight on the conductivity mechanism. Also, known isothermal (κ vs.. x) and iso-compositional (κ vs.. T) equations along with a proposed two variables semi-empirical model (κ = f (x, T)) were fitted to the collected data to validate their accuracy. The role of activation energy and free volume in controlling ionic conductivity is discussed. This work brings us closer to the development of a phenomenological model to describe the structure and transport in liquid electrolyte solutions.https://doi.org/10.1038/s42004-023-00993-4 |
| spellingShingle | Hilal Al-Salih Elena A. Baranova Yaser Abu-Lebdeh Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling Communications Chemistry |
| title | Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling |
| title_full | Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling |
| title_fullStr | Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling |
| title_full_unstemmed | Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling |
| title_short | Unraveling the phase diagram-ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi-empirical modeling |
| title_sort | unraveling the phase diagram ion transport relationship in aqueous electrolyte solutions and correlating conductivity with concentration and temperature by semi empirical modeling |
| url | https://doi.org/10.1038/s42004-023-00993-4 |
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