Influence of sintering temperature on nio-sdcc anode for low-temperature solid oxide fuel cells (LT-SOFCs)

Research output: Contribution to journalArticle

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Abstract

The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode pellets are evaluated in this study. Composite powders of NiO-SDCC (nickel oxide, samarium-doped ceria, Sm0.2Ce0.8O1.9) mixed with binary carbonates (67 mol. % Li2CO3 and 33 mol. % Na2CO3) was prepared, ball-milled, and oven-dried. Carbon black and polyethylene glycol were added to the NiO-SDCC powders as pore former and binder, respectively, to fabricate NiO-SDCC pellets. This mixture was then pressed onto a cylindrical mold under a pressure of 32 MPa. The pellets were subsequently sintered at 600, 700, 800, 900 and 1000°C for 2 h. Phase transformation, particle size, morphology, and specific surface area (SBET) of the NiO-SDCC composite powder were investigated. Porosity and microstructure of the NiO-SDCC anode pellets were then evaluated after sintering. Results showed that the porosities of the NiO-SDCC pellets decreased as the sintering temperature increased. The increments of sintering temperature reduced the porosity of the pellets, but NiO-SDCC pellets sintered at 800°C exhibited an acceptable porosity of 32.60 %. Furthermore, surface images showed that the microstructures of sintered pellets at 800°C were well-bonded and kept a uniform particle size distribution.

Original languageEnglish
Pages (from-to)317-323
Number of pages7
JournalCeramics - Silikaty
Volume60
Issue number4
DOIs
Publication statusPublished - 2016

Fingerprint

Samarium
Nickel oxide
nickel oxides
samarium
Cerium compounds
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
pellets
sintering
Anodes
anodes
Sintering
porosity
Porosity
Powders
Temperature
temperature
Soot
microstructure
Microstructure

Keywords

  • Composite
  • Microstructures
  • NiO-SDCC anode
  • Sintering
  • SOFCs

ASJC Scopus subject areas

  • Analytical Chemistry
  • Ceramics and Composites
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Influence of sintering temperature on nio-sdcc anode for low-temperature solid oxide fuel cells (LT-SOFCs). / Mahmud, Lily Siong; Muchtar, Andanastuti; Somalu, Mahendra Rao.

In: Ceramics - Silikaty, Vol. 60, No. 4, 2016, p. 317-323.

Research output: Contribution to journalArticle

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