@article{Dinh_Long_Trong_2007, title={Crystalline Perovskite La<sub> 0.67-x</sub>Li<sub> 3x </sub> TiO <sub> 3</sub>: Preparation and Ionic Conducting Characterization}, volume={14}, url={https://vjs.ac.vn/index.php/cip/article/view/10699}, DOI={10.15625/0868-3166/14/2/10699}, abstractNote={Crystalline perovskite La&lt;sub&gt;0.67-x&lt;/sub&gt;Li&lt;sub&gt; 3x &lt;/sub&gt;TiO&lt;sub&gt; 3 &lt;/sub&gt; with &lt;i&gt; x &lt;/i&gt; = 0.06, 0.11 and 0.15 were prepared by solid-state-solution reactions at 1350&lt;sup&gt; 0 &lt;/sup&gt;C from TiO&lt;sub&gt; 2 &lt;/sub&gt;, La&lt;sub&gt; 2 &lt;/sub&gt;O&lt;sub&gt; 3 &lt;/sub&gt; and Li&lt;sub&gt; 2 &lt;/sub&gt;CO&lt;sub&gt; 3 &lt;/sub&gt; Crystalline structure of these compounds was analyzed by XRD method. The ionic conducting property of La&lt;sub&gt; 0.67-x &lt;/sub&gt;Li&lt;sub&gt; 3x&lt;/sub&gt;TiO&lt;sub&gt; 3 &lt;/sub&gt; was characterized on AutoLab. Potentiostat-PGS30 system with impedance technique using fitting software program available in the equipment. The highest ion conductivity at room temperature was found for the compound with &lt;i&gt;x&lt;/i&gt; =0.11, namely $\sigma$ = 3.1 x 10&lt;sup&gt; -5&lt;/sup&gt;Scm&lt;sup&gt; -1&lt;/sup&gt;. With increase of temperature the ionic conductivity increased and at 200&lt;sup&gt;0&lt;/sup&gt;C it reached a value in two orders in magnitude higher (6 x 10&lt;sup&gt; -3&lt;/sup&gt;Scm&lt;sup&gt; -1&lt;/sup&gt;). The activation energy of the compounds was determined on Ln($\sigma$) vs. 1/T plots and found to be as low as 0.36 eV.}, number={2}, journal={Communications in Physics}, author={Dinh, Nguyen Nang and Long, Pham Duy and Trong, Le Dinh}, year={2007}, month={Sep.}, pages={90–94} }