Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na)
Metal hydroborates and their derivatives have been receiving attention as potential solid-state ion conductors for battery applications owing to their impressive electrochemical and mechanical characteristics. However, to date only a fraction of these compounds has been investigated as solid-state e...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | http://purl.org/au-research/grants/arc/DP230100429 http://hdl.handle.net/20.500.11937/97001 |
| _version_ | 1848766213045354496 |
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| author | Jensen,Steffen R.H. Jørgensen, M. Nguyen, Thi Phuong Thao Nolan, Greg Buckley, Craig E. Jensen, T.R. Paskevicius, Mark |
| author_facet | Jensen,Steffen R.H. Jørgensen, M. Nguyen, Thi Phuong Thao Nolan, Greg Buckley, Craig E. Jensen, T.R. Paskevicius, Mark |
| author_sort | Jensen,Steffen R.H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Metal hydroborates and their derivatives have been receiving attention as potential solid-state ion conductors for battery applications owing to their impressive electrochemical and mechanical characteristics. However, to date only a fraction of these compounds has been investigated as solid-state electrolytes. Here, MB12H11NH3 (M = Li and Na) hydroborates are synthesized and investigated as electrolyte materials for all-solid-state batteries. The room temperature α-NaB12H11NH3 was structurally solved in P212121 (a = 7.1972(3) Å, b = 9.9225(4) Å, and c = 14.5556(5) Å). It shows a polymorphic structural transition near 140 °C to cubic Fm3̄m. LiB12H11NH3 and NaB12H11NH3 exhibit cationic conductivities of σ(Li+) = 3.0 × 10−4 S cm−1 and σ(Na+) = 1.2 × 10−4 S cm−1 at 200 °C. Hydration is found to improve ionic conductivity of the hydroborates. It is presumed that modest ionic conductivities could be due to a lack of significant re-orientational dynamics in the crystal structure resulting from the presence of the bulky -NH3 group in the anion. |
| first_indexed | 2025-11-14T11:47:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-97001 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:47:34Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-970012025-03-04T00:41:53Z Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) Jensen,Steffen R.H. Jørgensen, M. Nguyen, Thi Phuong Thao Nolan, Greg Buckley, Craig E. Jensen, T.R. Paskevicius, Mark Metal hydroborates and their derivatives have been receiving attention as potential solid-state ion conductors for battery applications owing to their impressive electrochemical and mechanical characteristics. However, to date only a fraction of these compounds has been investigated as solid-state electrolytes. Here, MB12H11NH3 (M = Li and Na) hydroborates are synthesized and investigated as electrolyte materials for all-solid-state batteries. The room temperature α-NaB12H11NH3 was structurally solved in P212121 (a = 7.1972(3) Å, b = 9.9225(4) Å, and c = 14.5556(5) Å). It shows a polymorphic structural transition near 140 °C to cubic Fm3̄m. LiB12H11NH3 and NaB12H11NH3 exhibit cationic conductivities of σ(Li+) = 3.0 × 10−4 S cm−1 and σ(Na+) = 1.2 × 10−4 S cm−1 at 200 °C. Hydration is found to improve ionic conductivity of the hydroborates. It is presumed that modest ionic conductivities could be due to a lack of significant re-orientational dynamics in the crystal structure resulting from the presence of the bulky -NH3 group in the anion. 2024 Journal Article http://hdl.handle.net/20.500.11937/97001 10.1039/d4dt00801d eng http://purl.org/au-research/grants/arc/DP230100429 fulltext |
| spellingShingle | Jensen,Steffen R.H. Jørgensen, M. Nguyen, Thi Phuong Thao Nolan, Greg Buckley, Craig E. Jensen, T.R. Paskevicius, Mark Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title | Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title_full | Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title_fullStr | Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title_full_unstemmed | Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title_short | Ionic conduction in ammonia functionalised closo-dodecaborates MB12H11NH3 (M = Li and Na) |
| title_sort | ionic conduction in ammonia functionalised closo-dodecaborates mb12h11nh3 (m = li and na) |
| url | http://purl.org/au-research/grants/arc/DP230100429 http://hdl.handle.net/20.500.11937/97001 |