Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys
Metals or alloys that are liquid at or near room temperature are of interest of the scientific community due to the versatility of their applications. Considering the nuclear fusion energy applications, Sn-Li alloys appear as a great candidate for plasma facing materials. However, plasma interaction...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/11/1/6 |
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| author | Marc Nel-lo Enric Lujan Antonio Hinojo Sergi Colominas Jordi Abella |
| author_facet | Marc Nel-lo Enric Lujan Antonio Hinojo Sergi Colominas Jordi Abella |
| author_sort | Marc Nel-lo |
| collection | DOAJ |
| description | Metals or alloys that are liquid at or near room temperature are of interest of the scientific community due to the versatility of their applications. Considering the nuclear fusion energy applications, Sn-Li alloys appear as a great candidate for plasma facing materials. However, plasma interactions can induce alterations on the lithium concentration and, as a consequence, modify the properties of the LM. Therefore, in order to prevent these situations, thermodynamic data such as activity coefficients and analytical devices capable of monitoring the lithium content in these alloys are of great interest. In this work, a lithium sensor based on the Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> solid-state electrolyte was used to determine lithium activity correlations for Sn-Li alloys at 400 and 500 °C. It was observed that the activity coefficient was constant for lithium concentrations lower than 8.5 at% with values, at the infinite dilution condition, of 8.4·10<sup>−5</sup> at 400 °C and 2.7·10<sup>−4</sup> at 500 °C, respectively. Above this concentration (from 8.5 to 16.5 at% Li), the activity coefficient varied with lithium concentration. In this case, correlations between lithium activity and the lithium atomic fraction were obtained. |
| first_indexed | 2024-03-09T13:11:18Z |
| format | Article |
| id | doaj.art-1afd164f809f46a390af5b783ce22ad8 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-09T13:11:18Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-1afd164f809f46a390af5b783ce22ad82023-11-30T21:41:11ZengMDPI AGChemosensors2227-90402022-12-01111610.3390/chemosensors11010006Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li AlloysMarc Nel-lo0Enric Lujan1Antonio Hinojo2Sergi Colominas3Jordi Abella4Electrochemical Methods Laboratory–Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, SpainElectrochemical Methods Laboratory–Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, SpainElectrochemical Methods Laboratory–Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, SpainElectrochemical Methods Laboratory–Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, SpainElectrochemical Methods Laboratory–Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, SpainMetals or alloys that are liquid at or near room temperature are of interest of the scientific community due to the versatility of their applications. Considering the nuclear fusion energy applications, Sn-Li alloys appear as a great candidate for plasma facing materials. However, plasma interactions can induce alterations on the lithium concentration and, as a consequence, modify the properties of the LM. Therefore, in order to prevent these situations, thermodynamic data such as activity coefficients and analytical devices capable of monitoring the lithium content in these alloys are of great interest. In this work, a lithium sensor based on the Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> solid-state electrolyte was used to determine lithium activity correlations for Sn-Li alloys at 400 and 500 °C. It was observed that the activity coefficient was constant for lithium concentrations lower than 8.5 at% with values, at the infinite dilution condition, of 8.4·10<sup>−5</sup> at 400 °C and 2.7·10<sup>−4</sup> at 500 °C, respectively. Above this concentration (from 8.5 to 16.5 at% Li), the activity coefficient varied with lithium concentration. In this case, correlations between lithium activity and the lithium atomic fraction were obtained.https://www.mdpi.com/2227-9040/11/1/6lithium activity coefficientsSn-Lipotentiometric sensorLi<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub>LBLTOgarnet |
| spellingShingle | Marc Nel-lo Enric Lujan Antonio Hinojo Sergi Colominas Jordi Abella Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys Chemosensors lithium activity coefficients Sn-Li potentiometric sensor Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> LBLTO garnet |
| title | Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys |
| title_full | Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys |
| title_fullStr | Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys |
| title_full_unstemmed | Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys |
| title_short | Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> Solid-State Probe for Studying Li Activity in Molten Sn-Li Alloys |
| title_sort | li sub 6 sub bala sub 2 sub ta sub 2 sub o sub 12 sub solid state probe for studying li activity in molten sn li alloys |
| topic | lithium activity coefficients Sn-Li potentiometric sensor Li<sub>6</sub>BaLa<sub>2</sub>Ta<sub>2</sub>O<sub>12</sub> LBLTO garnet |
| url | https://www.mdpi.com/2227-9040/11/1/6 |
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