Title of article
L16 Orthogonal Design Synthesis of NASICON-type Li1.4Al0.4Ti1.6(PO4)3 Solid Electrolyte by Pechini Method for Process Optimization
Author/Authors
Ghaani, M. R Department of Mining and Metallurgical Engineering - Amirkabir University of Technology, Tehran , Marashi, P Department of Mining and Metallurgical Engineering - Amirkabir University of Technology, Tehran
Pages
12
From page
60
To page
71
Abstract
Na super ionic conductive (NASICON) materials are ceramics with three-dimensional scaffolds. In this study, Li1.4Al0.4Ti1.6(PO4)3 with NASICON structure was synthesized by Pechini method. As a result, a sample having a total conduction of 1.18×10-3 S cm-1 was attained. In addition, various parameters were studied to obtain high value of conductivity, by optimizing the process. The optimization was made using L16 Taguchi based orthogonal array, followed by ANOM, ANOVA and stepwise regression. As a result, the optimum synthesis parameters can be obtained, while pH of the solution was adjusted to 7. The ratio between the concentration of citric acid to metal ions and ethylene glycol concentration stuck to 1 and 2.5, respectively. The best heat treatment can be carried out with a combination of pyrolysis at 600 ºC and sintering at 1000 ºC.
Keywords
NASICON , Pechini , Ionic conductivity , ANOM , Stepwise regression , Electrochemical impedance spectroscopy , Peroxotitanium
Journal title
Astroparticle Physics
Serial Year
2018
Record number
2469981
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