Open AccessMicrostructure and ionic conductivity investigation of samarium doped ceria(Sm0.2Ce0.8O1.9) electrolytes prepared by the templating methods
Author(s) -
DİLARA GÜÇTAŞ,
Vedat Sarıboğa,
MEHMET ALİ FARUK ÖKSÜZÖMER
Publication year - 2022
Publication title -
turkish journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.239
H-Index - 46
eISSN - 1303-6130
pISSN - 1300-0527
DOI - 10.55730/1300-0527.3379
Subject(s) - electrolyte , samarium , ionic conductivity , chemistry , conductivity , microstructure , dielectric spectroscopy , diffusion , analytical chemistry (journal) , pellets , electrochemistry , grain growth , grain size , ionic bonding , fast ion conductor , chemical engineering , inorganic chemistry , materials science , crystallography , ion , metallurgy , chromatography , composite material , physics , organic chemistry , electrode , engineering , thermodynamics
Sm 0.2 Ce 0.8 O 1.9 (SDC20) electrolytes were synthesized with cellulose templating (CT) and PVA templating (PVAT) methods. Powder characteristics were examined using TG/DTA, XRD, and SEM. Pellets are sintered at various temperatures for different durations. Mean grain sizes were calculated from SEM micrographs using the linear intercept method. Grain growth behavior of the electrolytes was investigated and the dominant diffusion mechanism was examined. The grain growth activation energies were obtained for the first time for the mentioned electrolytes prepared by the mentioned methods. The ionic conductivities were calculated by electrochemical impedance spectroscopy. The highest ionic conductivity value was found to be 0.050 S cm -1 for the cellulose templating method.