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https://doi.org/10.1016/j.ssi.2016.08.012
Title: | Improved ionic conductivity in NASICON-type Sr2+ doped LiZr2(PO4)(3) | Authors: | Kumar, Sunil Balaya, Palani |
Keywords: | Science & Technology Physical Sciences Chemistry, Physical Physics, Condensed Matter Chemistry Physics Solid electrolyte NASICON Impedance spectroscopy Transference number Structure stabilization Microstructure NEUTRON-DIFFRACTION ROOM-TEMPERATURE LITHIUM CONDUCTORS LI+ MOBILITY BATTERY |
Issue Date: | 15-Nov-2016 | Publisher: | ELSEVIER SCIENCE BV | Citation: | Kumar, Sunil, Balaya, Palani (2016-11-15). Improved ionic conductivity in NASICON-type Sr2+ doped LiZr2(PO4)(3). SOLID STATE IONICS 296 : 1-6. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ssi.2016.08.012 | Abstract: | Lithium ion conducting ceramics Li1 + 2xZr2 − xSrx(PO4)3 with x = 0–0.2 were synthesized via a sol-gel method using citric acid. The effects of Sr2 + substitution on the structure, microstructure, and conductivity of LiZr2(PO4)3 ceramics were studied. Rietveld refinement of powder XRD patterns showed that 5% of Sr2 + substitution for Zr4 + in LiZr2(PO4)3 stabilizes the rhombohedral (space group R3̅c) phase at room temperature. Sr2 + doped LiZr2(PO4)3 samples exhibited significantly improved ionic conductivity with Li1.2Zr1.9Sr0.1(PO4)3 showing highest conductivity of 0.34 × 10− 4 Ω−1 cm− 1 at room temperature. Activation energy was found to decrease from 0.56 eV for LiZr2(PO4)3 to 0.40 eV for Li1.4Zr1.8Sr0.2(PO4)3. Li+ transference number determined by DC polarization for Li1.2Zr1.9Sr0.1(PO4)3 was close to 1 confirming the ionic nature of conductivity. | Source Title: | SOLID STATE IONICS | URI: | https://scholarbank.nus.edu.sg/handle/10635/194111 | ISSN: | 01672738 18727689 |
DOI: | 10.1016/j.ssi.2016.08.012 |
Appears in Collections: | Staff Publications Elements |
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