| Structural and Conductivity Study of Sr-doped LaGaO3 |
Shivani Dhall,a Anil Sindhu,b Ashok Kumarc and Kapil Soodd, *
Pages: 234-239
DOI : 10.1080/0371750X.2024.2425853 |
| Abstract |
| Nowadays, solid oxide fuel cells (SOFCs) are extensively investigated by the research
community because it converts chemical energy into electrical energy with high
efficiency and without the need for burning fuel. Therefore, this work investigates the
influence of phase, microstructure and conductivity on the Sr-doped LaGaO3 system
for SOFC applications. The Sr-doped LaGaO3 system is synthesized using a simple
and effective solid-state reaction method. X-ray diffraction (XRD) and scanning electron
microscopy (SEM) are employed to investigate the crystal structure and morphology,
respectively. The XRD results reveal single-phase formation in all the synthesized
samples. Additionally, these samples have a relative density greater than 95%. The
conductivities of LSG-0 (LaGaO3), LSG-5 (La0.95Sr0.05GaO2.975) and LSG-10
(La0.9Sr0.1GaO2.95) at 800oC are 0.015, 1.21 and 1.45 mS/cm, respectively. It is observed
that the 10 mol% Sr-doped LaGaO3 exhibits the highest electrical conductivity among
these samples. |
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