论文部分内容阅读
精选层状硅铝酸盐矿物高岭石 (Al4[Si4O1 0 ](OH) 8)为起始原料 ,经高温固相反应 (～ 10 0 0℃ )合成了具有架状结构的Na1 .2 +yAl0 .1 YbyZr1 .9-ySi0 .1 P2 .9O1 2 系统 (简称Yb -Nasicon)的钠快离子导体 .XRD分析结果表明 ,当y≤ 0 .7时得到空间群为R3c的合成物 ,当 0 .71.7时出现未知相 .交流阻抗技术测定的电导率数据结果表明y =1.0的合成物具有最高的离子电导率 ,其在 5 73K和 6 73K时的电导率分别为 1.18S m和 5 .89S m ,473- 6 73K间的电导激活能为 36 .4kJ mol.
Selected layered aluminosilicate kaolinite (Al4 [Si4O10] (OH) 8) as a starting material, high temperature solid-state reaction (~ 10 0 ° C) synthesized with a framework of Na1 .2 + YAl0.1 YbyZr1 .9-ySi0.1 P2 .9O1 2 system (referred to as Yb-Nasicon) sodium fast ion conductor XRD analysis results show that when y ≤ 0.7 when the space group R3c synthesis, when 0.7 1.7 The results of the conductivity data measured by the AC impedance technique show that the composition with y = 1.0 has the highest ionic conductivity, The conductivities at 5 73K and 6 73K were 1.18S m and 5.89S m, respectively. The conductance activation energy at 473-673K was 36.4kJ mol.