论文部分内容阅读
钠快离子导体Ｎａ_(２．５)Ｚｒ_(２－ｘ)Ｔｉ_ｘＳｉ_(１．５)Ｐ_(１．５)Ｏ_(１２．０)系统ｘ＝０－２．０的化合物，由Ｎａ_３ＰＯ_４－ＺｒＯ_２－ＺｒＰ_２Ｏ_７－ＳｉＯ_２－ＴｉＯ_２为反应的起始原料，在９００℃－１２００℃的高温下反应数小时至二十小时制得。系统化合物的相变关系已探明，并测定了有关的单纯相在不同温度下的导电率以及电导激活能。相当于起始组成为Ｎａ_(２．５)Ｚｒ_(１．０)Ｔｉ_(１．０)Ｓｉ_(１．５)Ｐ_(１．５)Ｏ_(１２．０)的单纯相（标为２．５１相）在３００℃时的导电率σ３００＝１．８５×１０－２（Ω·ｃｍ）－１，其电导激活能为２３．６４ｋＪ／ｍｏｌｅ，相当于起始组成为Ｎａ_(２．５)Ｔｉ_(２．０)Ｓｉ_(１．５)Ｐ_(１．５)Ｏ_(１２．０)的单纯相（标为２．５２相）在３００℃时的导电率σ３００＝０．４６×１０－２（Ω·ｃｍ）－１，其电导激活能为２８．８９ｋＪ／ｍｏｌｅ．
Sodium fast ionic conductor Na 2.5 Zr 2-x Ti x Si 1.5 P 1.5 O 12.0 x = 0-2.0 is composed of Na 3 PO 4 -ZrO 2 -Si ZrP 2 O 7 -SiO 2 -TiO 2 is the starting material for the reaction and is prepared by reacting at a high temperature of 900 ° C.-1200 ° C. for several hours to twenty hours. The phase transition relationship of the system compounds has been proved and the conductivity and conductance activation energy of the pure phase at different temperatures have been determined. Which is equivalent to a simple phase (labeled as 2) with a starting composition of Na 2.5 Zr 1.0 Ti 1 .0 Si 1.5 P 1.5 O 12.0. 51) at 300 ℃, the electrical conductivity σ300 = 1.85 × 10-2 (Ω · cm) -1, the conductance activation energy is 23.64kJ / mole, which corresponds to the initial composition of Na_ (2.5) The electrical conductivity at 300 ° C of a simple phase of Ti 2.0 Si 1.5 P 1.5 O 12.0, denoted as 2.52 phase, was σ300 = 0.46 × 10- 2 (Ω · cm) -1, the conductance activation energy of 28.89kJ / mole.