التفاصيل البيبلوغرافية
| العنوان: |
Structure and lithium‐ion mobility in Li1.5M0.5Ge1.5(PO4)3 (M = Ga, Sc, Y) NASICON glass‐ceramics. |
| المؤلفون: |
d'Anciães Almeida Silva, Igor, Nieto‐Muñoz, Adriana M., Rodrigues, Ana Candida M., Eckert, Hellmut |
| المصدر: |
Journal of the American Ceramic Society; Jul2020, Vol. 103 Issue 7, p4002-4012, 11p, 5 Charts, 12 Graphs |
| مصطلحات موضوعية: |
ELECTRICAL conductivity measurement, ION mobility, X-ray powder diffraction, NUCLEAR magnetic resonance spectroscopy, GLASS-ceramics, IMPEDANCE spectroscopy, NUCLEAR magnetic resonance |
| مستخلص: |
This work reports structural and lithium‐ion mobility studies in NASICON single‐ or multiple phase Li1+xMxGe2−x(PO4)3 (M = Ga3+, Sc3+, Y3+) glass‐ceramics using solid‐state NMR techniques, X‐ray powder diffraction, and impedance spectroscopy. X‐ray powder diffraction data show the successful incorporation of Ga3+ and Sc3+ into the Ge4+ octahedral sites of the NASICON structure at the levels of x = 0.5 and 0.4, respectively. The glass‐to‐crystal transition was further characterized by multinuclear NMR and electrical conductivity measurements. Among the studied samples, the gallium‐containing glass‐ceramic presented the highest DC conductivity, 1.1 × 10−4 S/cm at room temperature, whereas for the Sc‐containing samples, the maximum room temperature conductivity that could be reached was 4.8 × 10−6 S/cm. No indications of any substitution of Ge4+ by Y3+ could be found. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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