| Autor: |
Zhao, Tong, Sobolev, Alexander N., Martinez de Irujo Labalde, Xabier, Kraft, Marvin A., Zeier, Wolfgang G. |
| Zdroj: |
Journal of Materials Chemistry A; 3/28/2024, Vol. 12 Issue 12, p7015-7024, 10p |
| Abstrakt: |
The Na+ ionic conductivity of ball milled Na3−xIn1−xZrxCl6 rises with increasing Zr content, while that in the subsequently annealed Na3−xIn1−xZrxCl6 compounds reaches a maximum conductivity at an intermediate substitution degree (x = 0.5). To clarify the underlying mechanism causing the differing trends, the local structure and coherence length of the ball milled Na3−xIn1−xZrxCl6 solid solutions were investigated by pair distribution function analyses. The structural evolution in the ball milled Na3−xIn1−xZrxCl6 series resembles those found in their annealed counterpart, however, its structural coherence length decreases with higher Zr content. By further investigating the transport properties using impedance spectroscopy, this work uncovers a correlation between the coherence length and the ionic conductivity in ball milled Na3−xIn1−xZrxCl6, in which lower structural coherence leads to higher ionic transport. This work indicates an influence of the microstructure beyond unit cell scale onto macroscopic transport properties in these sodium-conducting halide solid electrolytes. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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