Low temperature solid oxide fuel cells using LaGaO3-based oxide electrolyte on metal support

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Solid oxide fuel cells (SOFCs) can directly convert the chemical energy of various fuels to electric power with unmatched energy conversion efficiency. The oxide ion conductivity of LaGaO3 doped with Sr and Mg (LSGM) is introduced and application of LSGM to low temperature SOFCs is explained. Power density at lower temperature was dramatically increased by application of LSGM film manufactured with laser ablation techniques. By application of a suitable buffer layer, the cell using LSGM thin film electrolyte had reasonable power density (0.2 W cm-2) at 773 K. Ce0.6Mn0.3Fe0.1O2 (CMF) oxide had high activity for the anodic reaction and insertion of a CMF layer much improved the maximum power density (0.17 W cm-2 at 673 K). Oxide anode consisting of Ce0.6Mn0.3Fe0.1O2 (CMF)-La0.6Sr0.4Fe0.9Mn0.1O3 (LSFM) (= 2.5 : 87.5 wt%) enabled the use of dry hydrocarbon for fuel with almost no coke deposition.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
Journaljournal of the japan petroleum institute
Volume58
Issue number2
DOIs
Publication statusPublished - Jan 1 2015

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Solid oxide fuel cells (SOFC)
Electrolytes
Oxides
Metals
Laser ablation
Buffer layers
Energy conversion
Coke
Temperature
Conversion efficiency
Anodes
Hydrocarbons
Thin films
Ions

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Low temperature solid oxide fuel cells using LaGaO3-based oxide electrolyte on metal support. / Ishihara, Tatsumi.

In: journal of the japan petroleum institute, Vol. 58, No. 2, 01.01.2015, p. 71-78.

Research output: Contribution to journalArticle

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