Pencirian mikrostruktur katod La-Sr-Co-Fe-O bagi sel fuel oksida pepejal bersuhu sederhana (IT-SOFC)

Translated title of the contribution: Microstructure characterization of La-Sr-Co-Fe-O cathode for intermediate temperature solid oxide fuel cell (IT-SOFC)

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Perovskite oxide La1-xSrxCo0.2Fe 0.8O3-0δ(LSCF) with x = 0.3-0.5, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the sol-gel method. The resulting powder was characterised using X-Ray Diffraction (XRD) which sliowed that pure crystals of perovskite were fully formed after calcination at 900°C. The effect of sintering temperature on the microstructure was observed using Scanning Electron Microscopy (SEM) analysis. The results showed that the LSCF perovskite have the optimum porosity of 30% after sintered at 900°C and thus enable the oxygen reduction occurred easily. FTIR results revealed that only Fe-O bond exists in the LSCF powder and no impurities detected.

Original languageUndefined/Unknown
Pages (from-to)857-861
Number of pages5
JournalSains Malaysiana
Volume38
Issue number6
Publication statusPublished - Oct 2009

Fingerprint

Solid oxide fuel cells (SOFC)
Cathodes
Powders
Microstructure
Calcination
Temperature
Oxides
Sol-gel process
Sintering
Porosity
Impurities
Oxygen
X ray diffraction
Crystals
Scanning electron microscopy
perovskite

Keywords

  • Lanthanum strontium cobalt ferrite (LSCF)
  • Microstructure characterisation
  • Sintering temperature
  • Solid oxide fuel cell (SOFC)

ASJC Scopus subject areas

  • General

Cite this

Pencirian mikrostruktur katod La-Sr-Co-Fe-O bagi sel fuel oksida pepejal bersuhu sederhana (IT-SOFC). / Hamid, Noorashrina A.; Muchtar, Andanastuti; Wan Daud, Wan Ramli; Muhamad, Norhamidi.

In: Sains Malaysiana, Vol. 38, No. 6, 10.2009, p. 857-861.

Research output: Contribution to journalArticle

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abstract = "Perovskite oxide La1-xSrxCo0.2Fe 0.8O3-0δ(LSCF) with x = 0.3-0.5, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the sol-gel method. The resulting powder was characterised using X-Ray Diffraction (XRD) which sliowed that pure crystals of perovskite were fully formed after calcination at 900°C. The effect of sintering temperature on the microstructure was observed using Scanning Electron Microscopy (SEM) analysis. The results showed that the LSCF perovskite have the optimum porosity of 30{\%} after sintered at 900°C and thus enable the oxygen reduction occurred easily. FTIR results revealed that only Fe-O bond exists in the LSCF powder and no impurities detected.",
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AU - Hamid, Noorashrina A.

AU - Muchtar, Andanastuti

AU - Wan Daud, Wan Ramli

AU - Muhamad, Norhamidi

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N2 - Perovskite oxide La1-xSrxCo0.2Fe 0.8O3-0δ(LSCF) with x = 0.3-0.5, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the sol-gel method. The resulting powder was characterised using X-Ray Diffraction (XRD) which sliowed that pure crystals of perovskite were fully formed after calcination at 900°C. The effect of sintering temperature on the microstructure was observed using Scanning Electron Microscopy (SEM) analysis. The results showed that the LSCF perovskite have the optimum porosity of 30% after sintered at 900°C and thus enable the oxygen reduction occurred easily. FTIR results revealed that only Fe-O bond exists in the LSCF powder and no impurities detected.

AB - Perovskite oxide La1-xSrxCo0.2Fe 0.8O3-0δ(LSCF) with x = 0.3-0.5, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the sol-gel method. The resulting powder was characterised using X-Ray Diffraction (XRD) which sliowed that pure crystals of perovskite were fully formed after calcination at 900°C. The effect of sintering temperature on the microstructure was observed using Scanning Electron Microscopy (SEM) analysis. The results showed that the LSCF perovskite have the optimum porosity of 30% after sintered at 900°C and thus enable the oxygen reduction occurred easily. FTIR results revealed that only Fe-O bond exists in the LSCF powder and no impurities detected.

KW - Lanthanum strontium cobalt ferrite (LSCF)

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KW - Sintering temperature

KW - Solid oxide fuel cell (SOFC)

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