摘要
Ｎａ３＋ｘＬｕｘＺｒ２－ｘＳｉ２Ｐｏ１２系统的钠快离子导体，由Ｎａ２Ｃｏ３、Ｌｕ２Ｏ３、ＺｒＯ２，ＳｉＯ２和ＮＨ４Ｈ２ＰＯ４为原料经高温（１０００－１２００℃）固相反应２０－２８小时制得。一个具有Ｃ２／结构的Ｎａｓｉｃｏｎ相可在起始组成为ｘ＝０－０．８范围内发现，Ｎａ３＋ｘＬｕｘＺｒ２－ｘＳｉ２ＰＯ１２系统的晶胞体积在Ｘ≤０．４时是随Ｘ增大而增大，当Ｘ〉０．４时则是随Ｘ增大而缩小。
Sodium fast ion coductors of Na3＋xLuxZr2-xSi2PO12 system were prepared from the mixtures of Na2CO3,Lu2O3,ZrO2,SiO2 and NH4H2PO4 by solid phase reaction at the temperature range of 1000℃- 1200℃ for 20-28 hours. A Nasicon phase with space group C2/c can be found in the composition range x=0 --1.0 The unit-cell dimensions of Na3＋xLuxZr2-xSi2PO12 system increase with increasing X when X≤ 0.4 and decreae with increasing X when x〉0.4 .The maximum conductivity is 3.16 × 10-2s/cm, at 300 ℃ for the initial composition x=0.4 and its activation energy is 45.5kJ/mole in the temperature range 200 - 400 ℃ .
出处
《漳州师院学报》
1996年第4期94-97,共4页
Journal of ZhangZhou Teachers College（Philosophy & Social Sciences)
基金
国家自然科学基金资助项目.
