Effect of fuel choice on conductivity and morphological properties of samarium doped ceria electrolytes for IT-SOFC
TURKISH JOURNAL OF CHEMISTRY, cilt.45, sa.5, ss.1408-1421, 2021 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 45 Sayı: 5
- Basım Tarihi: 2021
- Doi Numarası: 10.3906/kim-2104-56
- Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.1408-1421
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
The present
investigation is emphasized on the effect of various combustion agents on the crystal
properties, surface microstructure, and oxygen ion conductivity of 20% mole-Sm
doped ceria (Ce0.80Sm0.20O1.90/SDC20)
ceramics as solid electrolyte for IT-SOFCs. The most widely used combustion agents for engineering ceramic
production as ethylene glycol, diethylene glycol, triethylene glycol,
L-alanine, L-valine, glycine, citric acid monohydrate, urea and EDTA-citric
acid were compared in terms of SDC20 properties. X-ray diffraction (XRD), scanning electron microscopy
(SEM), thermogravimetric analysis (TGA) and electrochemical impedance
spectroscopy (EIS) were used to determine the microstructure properties,
crystal structure and ionic conductivity of SDC20 powder. XRD pattern of the ceramics
revealed the formation of single‐phase fluorite
structure. According to the results of electrochemical analysis, the maximum
total ionic conductivity was observed in SDC20 electrolyte synthesized using
triethylene glycol as the fuel among all the synthesized electrolytes (5.72x10-2
S.cm-1).