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通过高温固相反应合成了Na_(1+x)Zr_(2-y)Ti_y,Si_xP_(3-x)O_(12)系统y=1,x=0-2.0的一系列合成物.其合成反应温度低于Zr-NASICON的合成温度.研究了系统的相变关系以及电导率、电导激活能与化学组成的关系.研究了系统合成物对水的稳定性.结果表明y=1.0,x=0.9的合成物的电导性能最好,对水的反应性也较小,其电导率在室温时为3.64×10~(-4)(Ω·cm~(-1)),在623K时为1.25×10~(-1)(Ω·cm)~(-1),其激活能为26.35kJ/molc(0.27cV)(473-673K).
A series of compositions of Na 1 + x Zr 2-y Ti y and Si xx 3_xO 12 systems with y = 1 and x = 0-2.0 were synthesized by high temperature solid-state reaction. The synthesis reaction The temperature is lower than the synthesis temperature of Zr-NASICON.The phase transition relationship and the relationship between conductivity and conductivity activation energy and chemical composition of the system were studied.The stability of the system composition to water was studied.The results showed that y = 1.0, x = 0.9 Has the best conductivity and low reactivity to water, its conductivity is 3.64 × 10 -4 (Ω · cm -1) at room temperature and 1.25 × at 623K The activation energy was 26.35kJ / molc (0.27cV) (473-673K) at 10-1 (Ω · cm) -1.