Influence of microstructure on the electrochemical behaviour of LSCF-SDCC

H. A. Rahman, K. H. Ng, S. Ahmad, H. Taib, S. Mahzan, S. M. Salleh, A. Ismail, Andanastuti Muchtar

Research output: Contribution to journalConference article

Abstract

The correlation of cathode microstructure with the electrochemical behavior of LSCF-SDCC has been studied. In this study, LSCF-SDCC composite cathode powders were hamimah@uthm.edu.my prepared using ball milling and calcined at 700-900°C. Cathode pellets were fabricated using the calcined powders via uniaxial press and sintered at 600°C. A reduction of pellet porosity (33.1-29.8%) was observed as the calcination temperature increased, which was also in line with the cross-sectional view of the pellet. In electrochemical analysis, dominant resistance was observed in all samples which corresponded to low adsorption of oxygen. Meanwhile, cathode prepared with calcined powders of7 50°C exhibited the least area specific resistance that yielded single cell performance of 139m W/cm 2 at 550°C.

Original languageEnglish
Article number012062
JournalIOP Conference Series: Materials Science and Engineering
Volume494
Issue number1
DOIs
Publication statusPublished - 29 Mar 2019
Externally publishedYes
EventInternational Conference on Mechanical Engineering Research and Application 2018, ICOMERA 2018 - Malang, Indonesia
Duration: 23 Oct 201825 Oct 2018

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Cathodes
Powders
Microstructure
Ball milling
Calcination
Porosity
Oxygen
Adsorption
Composite materials
Temperature

Keywords

  • calcinations
  • composite cathode
  • LSCF-SDCC
  • solid oxide fuel cell

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Influence of microstructure on the electrochemical behaviour of LSCF-SDCC. / Rahman, H. A.; Ng, K. H.; Ahmad, S.; Taib, H.; Mahzan, S.; Salleh, S. M.; Ismail, A.; Muchtar, Andanastuti.

In: IOP Conference Series: Materials Science and Engineering, Vol. 494, No. 1, 012062, 29.03.2019.

Research output: Contribution to journalConference article

Rahman, H. A. ; Ng, K. H. ; Ahmad, S. ; Taib, H. ; Mahzan, S. ; Salleh, S. M. ; Ismail, A. ; Muchtar, Andanastuti. / Influence of microstructure on the electrochemical behaviour of LSCF-SDCC. In: IOP Conference Series: Materials Science and Engineering. 2019 ; Vol. 494, No. 1.
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