High oxide ion conductivity in Fe and Mg doped LaGaO3 as the electrolyte of solid oxide fuel cells

Makiko Enoki; Jingwang Yan; Hiroshige Matsumoto; Tatsumi Ishihara

doi:10.1016/j.ssi.2006.01.015

High oxide ion conductivity in Fe and Mg doped LaGaO₃ as the electrolyte of solid oxide fuel cells

Makiko Enoki, Jingwang Yan, Hiroshige Matsumoto, Tatsumi Ishihara

Advanced Energy Conversion Systems Thrust

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

21 Citations (Scopus)

Abstract

La(Sr)Ga(Fe,Mg)O₃ exhibited the high oxide ion conductivity and the electrical power generating property of SOFC single cell using La_0.7Sr_0.3Ga_0.7Fe_0.2Mg_0.1O_3-δ (LSGFM) electrolyte was investigated in this study. The transport number of oxide ion is almost 0.8 in LSGFM and so open circuit potential (OCV) is as low as 0.8 V. OCV was strongly affected by anode materials and the highest OCV was achieved on Ni-Fe bimetallic anode. The extremely high power density was achieved by using LSGFM for electrolyte of SOFC. The maximum power densities of the cells can be elevated by coating with oxide ion conductor film at anode side. The maximum power density increased in the following order for coating film: LSGM > SDC > YSZ. The maximum power density of 197 and 100 mW/cm² can be achieved at 873 and 773 K, respectively, when LSGM film deposited on the anode side of LSGFM. Therefore, LSGFM can be used as electrolyte of SOFC operating at intermediate temperature.

Original language	English
Pages (from-to)	2053-2057
Number of pages	5
Journal	Solid State Ionics
Volume	177
Issue number	19-25 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.ssi.2006.01.015
Publication status	Published - Oct 15 2006

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.ssi.2006.01.015

Cite this

@article{f5e5f62d1f3b4fee8f044523f08fd170,

title = "High oxide ion conductivity in Fe and Mg doped LaGaO3 as the electrolyte of solid oxide fuel cells",

abstract = "La(Sr)Ga(Fe,Mg)O3 exhibited the high oxide ion conductivity and the electrical power generating property of SOFC single cell using La0.7Sr0.3Ga0.7Fe0.2Mg0.1O3-δ (LSGFM) electrolyte was investigated in this study. The transport number of oxide ion is almost 0.8 in LSGFM and so open circuit potential (OCV) is as low as 0.8 V. OCV was strongly affected by anode materials and the highest OCV was achieved on Ni-Fe bimetallic anode. The extremely high power density was achieved by using LSGFM for electrolyte of SOFC. The maximum power densities of the cells can be elevated by coating with oxide ion conductor film at anode side. The maximum power density increased in the following order for coating film: LSGM > SDC > YSZ. The maximum power density of 197 and 100 mW/cm2 can be achieved at 873 and 773 K, respectively, when LSGM film deposited on the anode side of LSGFM. Therefore, LSGFM can be used as electrolyte of SOFC operating at intermediate temperature.",

author = "Makiko Enoki and Jingwang Yan and Hiroshige Matsumoto and Tatsumi Ishihara",

year = "2006",

month = oct,

day = "15",

doi = "10.1016/j.ssi.2006.01.015",

language = "English",

volume = "177",

pages = "2053--2057",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

number = "19-25 SPEC. ISS.",

}

TY - JOUR

T1 - High oxide ion conductivity in Fe and Mg doped LaGaO3 as the electrolyte of solid oxide fuel cells

AU - Enoki, Makiko

AU - Yan, Jingwang

AU - Matsumoto, Hiroshige

AU - Ishihara, Tatsumi

PY - 2006/10/15

Y1 - 2006/10/15

N2 - La(Sr)Ga(Fe,Mg)O3 exhibited the high oxide ion conductivity and the electrical power generating property of SOFC single cell using La0.7Sr0.3Ga0.7Fe0.2Mg0.1O3-δ (LSGFM) electrolyte was investigated in this study. The transport number of oxide ion is almost 0.8 in LSGFM and so open circuit potential (OCV) is as low as 0.8 V. OCV was strongly affected by anode materials and the highest OCV was achieved on Ni-Fe bimetallic anode. The extremely high power density was achieved by using LSGFM for electrolyte of SOFC. The maximum power densities of the cells can be elevated by coating with oxide ion conductor film at anode side. The maximum power density increased in the following order for coating film: LSGM > SDC > YSZ. The maximum power density of 197 and 100 mW/cm2 can be achieved at 873 and 773 K, respectively, when LSGM film deposited on the anode side of LSGFM. Therefore, LSGFM can be used as electrolyte of SOFC operating at intermediate temperature.

AB - La(Sr)Ga(Fe,Mg)O3 exhibited the high oxide ion conductivity and the electrical power generating property of SOFC single cell using La0.7Sr0.3Ga0.7Fe0.2Mg0.1O3-δ (LSGFM) electrolyte was investigated in this study. The transport number of oxide ion is almost 0.8 in LSGFM and so open circuit potential (OCV) is as low as 0.8 V. OCV was strongly affected by anode materials and the highest OCV was achieved on Ni-Fe bimetallic anode. The extremely high power density was achieved by using LSGFM for electrolyte of SOFC. The maximum power densities of the cells can be elevated by coating with oxide ion conductor film at anode side. The maximum power density increased in the following order for coating film: LSGM > SDC > YSZ. The maximum power density of 197 and 100 mW/cm2 can be achieved at 873 and 773 K, respectively, when LSGM film deposited on the anode side of LSGFM. Therefore, LSGFM can be used as electrolyte of SOFC operating at intermediate temperature.

UR - http://www.scopus.com/inward/record.url?scp=33750024800&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750024800&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2006.01.015

DO - 10.1016/j.ssi.2006.01.015

M3 - Article

AN - SCOPUS:33750024800

SN - 0167-2738

VL - 177

SP - 2053

EP - 2057

JO - Solid State Ionics

JF - Solid State Ionics

IS - 19-25 SPEC. ISS.

ER -

High oxide ion conductivity in Fe and Mg doped LaGaO₃ as the electrolyte of solid oxide fuel cells

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this