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

Tatsumi Ishihara

doi:10.1627/jpi.58.71

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

Tatsumi Ishihara

Research output: Contribution to journal › Article › peer-review

9 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. Ce_0.6Mn_0.3Fe_0.1O₂ (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 Ce_0.6Mn_0.3Fe_0.1O₂ (CMF)-La_0.6Sr_0.4Fe_0.9Mn_0.1O₃ (LSFM) (= 2.5 : 87.5 wt%) enabled the use of dry hydrocarbon for fuel with almost no coke deposition.

Original language	English
Pages (from-to)	71-78
Number of pages	8
Journal	journal of the japan petroleum institute
Volume	58
Issue number	2
DOIs	https://doi.org/10.1627/jpi.58.71
Publication status	Published - Jan 1 2015

All Science Journal Classification (ASJC) codes

Fuel Technology
Energy Engineering and Power Technology

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10.1627/jpi.58.71

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title = "Low temperature solid oxide fuel cells using LaGaO3-based oxide electrolyte on metal support",

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.",

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AU - Ishihara, Tatsumi

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N2 - 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.

AB - 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.

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

Abstract

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