Titanium doped LSCM anode for hydrocarbon fuelled SOFCs
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong BE 1410 (Brunei Darussalam)
La{sub 0.75}Sr{sub 0.25}Cr{sub 0.5-x}Mn{sub 0.5}Ti{sub x}O{sub 3} (x = 0.1, 0.2) has been synthesized in solid state reaction method and tested as a potential anode material for solid oxide fuel cells. Rietveld refinement of X-ray powder diffraction data using Fullprof software shows that the materials crystallize in the rhombohedral symmetry in the R-3C space group. The cell parameters are: a = b = 5.5286 (4) Å, c = 13.408(1) Å, α = β = 90°, γ = 120°. Particle size distribution measurements show that the average particle size for x = 0.1 and 0.2 was 232.66 nm and 176.63 nm, respectively. The potential on particles were found to be −22.86 mV and −27.73 mV, for x = 0.1 and x = 0.2, respectively. Thermal expansion measurement using thermo-mechanical analyzer shows that the thermal expansion coefficient is 13.96 × 10{sup −6}/°C which is close to the thermal expansion of the state-of–the art YSZ electrolyte. Microstructure has been observed from scanning electron microscopy which shows a porous structure. Energy dispersive X-ray shows that the percentage of the different cations and anions in the structure are close to the chemical occupancies.
- OSTI ID:
- 22391677
- Journal Information:
- AIP Conference Proceedings, Vol. 1660, Issue 1; Conference: ICoMEIA 2014: International Conference on Mathematics, Engineering and Industrial Applications 2014, Penang (Malaysia), 28-30 May 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANIONS
ANODES
CATIONS
CHROMIUM COMPOUNDS
DOPED MATERIALS
F CODES
HYDROCARBONS
LANTHANUM COMPOUNDS
MANGANATES
MICROSTRUCTURE
PARTICLE SIZE
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
SOLID OXIDE FUEL CELLS
STRONTIUM TITANATES
THERMAL EXPANSION
TRIGONAL LATTICES
X-RAY DIFFRACTION
YTTRIUM OXIDES
ZIRCONIUM OXIDES