Effects of sintering temperature on the electrochemical performance of solid oxide fuel cell (SOFC) composite cathode LSCF-SDCC

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Abstract

The effects of sintering temperature on the electrochemical performance of solid oxide fuel cell composite cathode LSCF-SDCC are discussed in this paper. An LSCF-SDCC composite cathode was prepared at 50:50 weights percentage ratios. The LSCF-SDCC film was fabricated through electrophoretic deposition (EPD) method. EPD was conducted on both sides of the SDCC substrate to produce a symmetrical cell. The symmetrical cell was subjected to different sintering temperatures (550°C to 750°C) before undergoing microstructure analysis and an electrochemical performance test. The effects of sintering temperature change on film surface porosity were first investigated by energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy and ImageJ analysis. Then, the relation of polarisation resistance, Rp, with the sintering temperatures was established through electrochemical impedance spectroscopy. LSCF-SDCC that was sintered at 600°C exhibited the lowest Rp value of 0.68 Ω when operated at 650°C. The results showed that sintering temperature in the range of 550°C to 650°C is the best sintering temperature to produce a high-performance LSCF-SDCC composite cathode.

Original languageEnglish
Pages (from-to)459-465
Number of pages7
JournalSains Malaysiana
Volume45
Issue number3
Publication statusPublished - 1 Mar 2016

Fingerprint

Solid oxide fuel cells (SOFC)
Cathodes
Sintering
Composite materials
Temperature
Electrochemical impedance spectroscopy
Field emission
Porosity
Polarization
Microstructure
Scanning electron microscopy
Substrates

Keywords

  • Composites
  • Sintering
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • General

Cite this

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title = "Effects of sintering temperature on the electrochemical performance of solid oxide fuel cell (SOFC) composite cathode LSCF-SDCC",
abstract = "The effects of sintering temperature on the electrochemical performance of solid oxide fuel cell composite cathode LSCF-SDCC are discussed in this paper. An LSCF-SDCC composite cathode was prepared at 50:50 weights percentage ratios. The LSCF-SDCC film was fabricated through electrophoretic deposition (EPD) method. EPD was conducted on both sides of the SDCC substrate to produce a symmetrical cell. The symmetrical cell was subjected to different sintering temperatures (550°C to 750°C) before undergoing microstructure analysis and an electrochemical performance test. The effects of sintering temperature change on film surface porosity were first investigated by energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy and ImageJ analysis. Then, the relation of polarisation resistance, Rp, with the sintering temperatures was established through electrochemical impedance spectroscopy. LSCF-SDCC that was sintered at 600°C exhibited the lowest Rp value of 0.68 Ω when operated at 650°C. The results showed that sintering temperature in the range of 550°C to 650°C is the best sintering temperature to produce a high-performance LSCF-SDCC composite cathode.",
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author = "Baharuddin, {Nurul Akidah} and Andanastuti Muchtar and Somalu, {Mahendra Rao} and Sulong, {Abu Bakar} and Huda Abdullah",
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AU - Sulong, Abu Bakar

AU - Abdullah, Huda

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N2 - The effects of sintering temperature on the electrochemical performance of solid oxide fuel cell composite cathode LSCF-SDCC are discussed in this paper. An LSCF-SDCC composite cathode was prepared at 50:50 weights percentage ratios. The LSCF-SDCC film was fabricated through electrophoretic deposition (EPD) method. EPD was conducted on both sides of the SDCC substrate to produce a symmetrical cell. The symmetrical cell was subjected to different sintering temperatures (550°C to 750°C) before undergoing microstructure analysis and an electrochemical performance test. The effects of sintering temperature change on film surface porosity were first investigated by energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy and ImageJ analysis. Then, the relation of polarisation resistance, Rp, with the sintering temperatures was established through electrochemical impedance spectroscopy. LSCF-SDCC that was sintered at 600°C exhibited the lowest Rp value of 0.68 Ω when operated at 650°C. The results showed that sintering temperature in the range of 550°C to 650°C is the best sintering temperature to produce a high-performance LSCF-SDCC composite cathode.

AB - The effects of sintering temperature on the electrochemical performance of solid oxide fuel cell composite cathode LSCF-SDCC are discussed in this paper. An LSCF-SDCC composite cathode was prepared at 50:50 weights percentage ratios. The LSCF-SDCC film was fabricated through electrophoretic deposition (EPD) method. EPD was conducted on both sides of the SDCC substrate to produce a symmetrical cell. The symmetrical cell was subjected to different sintering temperatures (550°C to 750°C) before undergoing microstructure analysis and an electrochemical performance test. The effects of sintering temperature change on film surface porosity were first investigated by energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy and ImageJ analysis. Then, the relation of polarisation resistance, Rp, with the sintering temperatures was established through electrochemical impedance spectroscopy. LSCF-SDCC that was sintered at 600°C exhibited the lowest Rp value of 0.68 Ω when operated at 650°C. The results showed that sintering temperature in the range of 550°C to 650°C is the best sintering temperature to produce a high-performance LSCF-SDCC composite cathode.

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