Investigation of phases and stability of solid electrolytes in the NASICON system |
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| Authors: | C.L. Tsai H.Y-P. Hong |
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| Affiliation: | Department of Chemical Engineering, Taiwan Institute of Technology, Taipei, Taiwan ROC |
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| Abstract: | In order to study the phase change and stability of the NASICON structure, sodium, lithium and magnesium ions were chosen to substitute the zirconium ion at octahedral sites in the NASICON network. It was found that the zirconium ion can not be replaced by these ions. All the synthesized products are Na1+xZr2SixP3?xO12 and phosphate salts. NASICON immersed in liquid sodium at 300°C also results phosphate salt and ZrO2. It was found that an appropriate excess of sodium phosphate in NASICON will improve the chemical stability, corrosion against sodium and mechanical properties. |
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