| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gretarsson, Hlynur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Deciphering the Origin of Interface‐Induced High Li and Na Ion Conductivity in Nanocomposite Solid Electrolytes Using X‐Ray Raman Spectroscopycitations
- 2024Deciphering the Origin of Interface‐Induced High Li and Na Ion Conductivity in Nanocomposite Solid Electrolytes Using X‐Ray Raman Spectroscopycitations
- 2024Quantifying the $U 5f$ covalence and degree of localization in U intermetallicscitations
- 2023High-efficiency X-ray emission spectroscopy of cold-compressed Fe2O3 and laser-heated pressurized FeCO3 using a von Hámos spectrometer
- 2023Singlet magnetism in intermetallic $UGa_2$ unveiled by inelastic x-ray scatteringcitations
- 2023High-efficiency X-ray emission spectroscopy of cold-compressed Fe$_2$O$_3$ and laser-heated pressurized FeCO$_3$ using a von Hámos spectrometercitations
- 2023High-efficiency X-ray emission spectroscopy of cold-compressed Fe2O3 and laser-heated pressurized FeCO3 using a von Hamos ´ spectrometer
- 2023High-efficiency X-ray emission spectroscopy of cold-compressed Fe 2 O 3 and laser-heated pressurized FeCO 3 using a von Hámos spectrometercitations
- 2022Fe$^{3+}$-hosting carbon phases in the deep Earthcitations
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article
Deciphering the Origin of Interface‐Induced High Li and Na Ion Conductivity in Nanocomposite Solid Electrolytes Using X‐Ray Raman Spectroscopy
Abstract
<jats:title>Abstract</jats:title><jats:p>Solid‐state electrolytes (SSEs) with high ionic conductivities are crucial for safer and high‐capacity batteries. Interface effects in nanocomposites of SSEs and insulators can lead to profound increases in conductivity. Understanding the composition of the interface is crucial for tuning the conductivity of composite solid electrolytes. Herein, X‐ray Raman Scattering (XRS) spectroscopy is used for the first time to unravel the nature of the interface effects responsible for conductivity enhancements in nanocomposites of complex hydride‐based electrolytes (LiBH<jats:sub>4</jats:sub>, NaBH<jats:sub>4</jats:sub>, and NaNH<jats:sub>2</jats:sub>) and oxides. XRS probe of the Li, Na, and B local environments reveals that the interface consists of highly distorted/defected and structurally distinct phase(s) compared to the original compounds. Interestingly, nanocomposites with higher concentrations of the interface compounds exhibit higher conductivities. Clear differences are observed in the interface composition of SiO<jats:sub>2</jats:sub>‐ and Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>‐based nanocomposites, attributed to differences in the reactivity of their surface groups. These results demonstrate that interfacial reactions play a dominant role in conductivity enhancement in composite solid electrolytes. This work showcases the potential of XRS in investigating interface interactions, providing valuable insights into the often complex ion conductor/insulator interfaces, especially for systems containing light elements such as Li, B, and Na present in most SSEs and batteries.</jats:p>