Abstract
Cobalt-free SrFe0.8Ti0.2O3-δ cathode were synthesized through combustion method. Results of the thermogravimetric and Fourier transform infrared analyses suggested that a perovskite oxide started to form at temperatures above 1100 °C. X-ray diffraction and Rietveld refinement analyses confirmed that the single-phase cubic structure (Pm-3m) of SrFe0.8Ti0.2O3-δ cathode was produced after calcination at 1300 °C. The average sizes of the particles were 1.0827 and 1.4438 μm as revealed by field emission scanning electron microscopy and dynamic light scattering analysis, respectively. In addition, energy dispersive X-ray analysis coupled with mapping revealed the homogenous distribution of elements in the cathode. The thermal expansion coefficient of the SrFe0.8Ti0.2O3-δ cathode is 16.20 × 10−6 K−1. For the electrochemical behavior, the area specific resistance of cathode (0.60–13.57 Ω cm2) was obtained at 600–800 °C and the activation energy is 121.77 kJ mol−1. This work confirmed the potential of SrFe0.8Ti0.2O3-δ cathode in intermediate temperature solid oxide fuel cell.
| Original language | English |
|---|---|
| Journal | International Journal of Hydrogen Energy |
| DOIs | |
| Publication status | Accepted/In press - 1 Jan 2018 |
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Keywords
- Area specific resistance
- Cobalt-free cathode
- Particle size
- Perovskite
- Solid oxide fuel cell
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
Cite this
Synthesis and characterization of cobalt-free SrFe0.8Ti0.2O3-δ cathode powders synthesized through combustion method for solid oxide fuel cells. / Baharuddin, Nurul Akidah; Muchtar, Andanastuti; Somalu, Mahendra Rao; Kalib, Noor Shieela; Raduwan, Nor Fatina.
In: International Journal of Hydrogen Energy, 01.01.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and characterization of cobalt-free SrFe0.8Ti0.2O3-δ cathode powders synthesized through combustion method for solid oxide fuel cells
AU - Baharuddin, Nurul Akidah
AU - Muchtar, Andanastuti
AU - Somalu, Mahendra Rao
AU - Kalib, Noor Shieela
AU - Raduwan, Nor Fatina
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Cobalt-free SrFe0.8Ti0.2O3-δ cathode were synthesized through combustion method. Results of the thermogravimetric and Fourier transform infrared analyses suggested that a perovskite oxide started to form at temperatures above 1100 °C. X-ray diffraction and Rietveld refinement analyses confirmed that the single-phase cubic structure (Pm-3m) of SrFe0.8Ti0.2O3-δ cathode was produced after calcination at 1300 °C. The average sizes of the particles were 1.0827 and 1.4438 μm as revealed by field emission scanning electron microscopy and dynamic light scattering analysis, respectively. In addition, energy dispersive X-ray analysis coupled with mapping revealed the homogenous distribution of elements in the cathode. The thermal expansion coefficient of the SrFe0.8Ti0.2O3-δ cathode is 16.20 × 10−6 K−1. For the electrochemical behavior, the area specific resistance of cathode (0.60–13.57 Ω cm2) was obtained at 600–800 °C and the activation energy is 121.77 kJ mol−1. This work confirmed the potential of SrFe0.8Ti0.2O3-δ cathode in intermediate temperature solid oxide fuel cell.
AB - Cobalt-free SrFe0.8Ti0.2O3-δ cathode were synthesized through combustion method. Results of the thermogravimetric and Fourier transform infrared analyses suggested that a perovskite oxide started to form at temperatures above 1100 °C. X-ray diffraction and Rietveld refinement analyses confirmed that the single-phase cubic structure (Pm-3m) of SrFe0.8Ti0.2O3-δ cathode was produced after calcination at 1300 °C. The average sizes of the particles were 1.0827 and 1.4438 μm as revealed by field emission scanning electron microscopy and dynamic light scattering analysis, respectively. In addition, energy dispersive X-ray analysis coupled with mapping revealed the homogenous distribution of elements in the cathode. The thermal expansion coefficient of the SrFe0.8Ti0.2O3-δ cathode is 16.20 × 10−6 K−1. For the electrochemical behavior, the area specific resistance of cathode (0.60–13.57 Ω cm2) was obtained at 600–800 °C and the activation energy is 121.77 kJ mol−1. This work confirmed the potential of SrFe0.8Ti0.2O3-δ cathode in intermediate temperature solid oxide fuel cell.
KW - Area specific resistance
KW - Cobalt-free cathode
KW - Particle size
KW - Perovskite
KW - Solid oxide fuel cell
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UR - http://www.scopus.com/inward/citedby.url?scp=85045317938&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2018.01.210
DO - 10.1016/j.ijhydene.2018.01.210
M3 - Article
AN - SCOPUS:85045317938
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
ER -