Preparation of oxygen ion conducting doped LaGaO3 thin films on porous substrates by pulsed laser deposition

Mitsugi Fumiaki; Kanazawa Seiji; Maeda Yutaka; Suita Shinya; Ohkubo Toshikazu; Nomoto Yukiharu; Takita Yusaku; Tatsumi Ishihara

Preparation of oxygen ion conducting doped LaGaO₃ thin films on porous substrates by pulsed laser deposition

Mitsugi Fumiaki, Kanazawa Seiji, Maeda Yutaka, Suita Shinya, Ohkubo Toshikazu, Nomoto Yukiharu, Takita Yusaku, Tatsumi Ishihara

Research output: Contribution to journal › Conference article › peer-review

Abstract

Recently, LaGaO₃ based perovskite material of La _1-xSr_xGa_1-y-zMg_yCO_zO _3-(x+y+z) (LSGMCO) has been considered as one of promising candidates for an electrolyte of solid oxide fuel cell (SOFC) due to its high oxygen ion conductivity. LSGMCO electrolyte films were deposited on porous anode of Ni and NiO+Ce_0.8Sm_0.2O_1.9 by pulsed laser deposition method. The LSGMCO film deposited at the substrate temperature of 800°C and the oxygen pressure of 20 Pa (72000 laser pulses) had columnar crystallized structures with large boundaries. The LSGMCO film had the high oxygen ion conductivity of 0.7 S/cm at a measurement temperature of 800°C. Open circuit voltage could be measured from our tube type SOFC unit cell utilizing the LSGMCO electrolyte film, however the value was smaller than theoretical one. We found that control of grain size by adjusting the oxygen pressure was needed for the lower temperature operating anode - support SOFC.

Original language	English
Pages (from-to)	1954-1958
Number of pages	5
Journal	Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume	3
Publication status	Published - Dec 1 2004
Event	Conference Record of the 2004 IEEE Industry Applications Conference; 39th IAS Annual Meeting - Seattle, WA, United States Duration: Oct 3 2004 → Oct 7 2004

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Cite this

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title = "Preparation of oxygen ion conducting doped LaGaO3 thin films on porous substrates by pulsed laser deposition",

abstract = "Recently, LaGaO3 based perovskite material of La 1-xSrxGa1-y-zMgyCOzO 3-(x+y+z) (LSGMCO) has been considered as one of promising candidates for an electrolyte of solid oxide fuel cell (SOFC) due to its high oxygen ion conductivity. LSGMCO electrolyte films were deposited on porous anode of Ni and NiO+Ce0.8Sm0.2O1.9 by pulsed laser deposition method. The LSGMCO film deposited at the substrate temperature of 800°C and the oxygen pressure of 20 Pa (72000 laser pulses) had columnar crystallized structures with large boundaries. The LSGMCO film had the high oxygen ion conductivity of 0.7 S/cm at a measurement temperature of 800°C. Open circuit voltage could be measured from our tube type SOFC unit cell utilizing the LSGMCO electrolyte film, however the value was smaller than theoretical one. We found that control of grain size by adjusting the oxygen pressure was needed for the lower temperature operating anode - support SOFC.",

author = "Mitsugi Fumiaki and Kanazawa Seiji and Maeda Yutaka and Suita Shinya and Ohkubo Toshikazu and Nomoto Yukiharu and Takita Yusaku and Tatsumi Ishihara",

year = "2004",

month = dec,

day = "1",

language = "English",

volume = "3",

pages = "1954--1958",

journal = "Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)",

issn = "0197-2618",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "Conference Record of the 2004 IEEE Industry Applications Conference; 39th IAS Annual Meeting ; Conference date: 03-10-2004 Through 07-10-2004",

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TY - JOUR

T1 - Preparation of oxygen ion conducting doped LaGaO3 thin films on porous substrates by pulsed laser deposition

AU - Fumiaki, Mitsugi

AU - Seiji, Kanazawa

AU - Yutaka, Maeda

AU - Shinya, Suita

AU - Toshikazu, Ohkubo

AU - Yukiharu, Nomoto

AU - Yusaku, Takita

AU - Ishihara, Tatsumi

PY - 2004/12/1

Y1 - 2004/12/1

N2 - Recently, LaGaO3 based perovskite material of La 1-xSrxGa1-y-zMgyCOzO 3-(x+y+z) (LSGMCO) has been considered as one of promising candidates for an electrolyte of solid oxide fuel cell (SOFC) due to its high oxygen ion conductivity. LSGMCO electrolyte films were deposited on porous anode of Ni and NiO+Ce0.8Sm0.2O1.9 by pulsed laser deposition method. The LSGMCO film deposited at the substrate temperature of 800°C and the oxygen pressure of 20 Pa (72000 laser pulses) had columnar crystallized structures with large boundaries. The LSGMCO film had the high oxygen ion conductivity of 0.7 S/cm at a measurement temperature of 800°C. Open circuit voltage could be measured from our tube type SOFC unit cell utilizing the LSGMCO electrolyte film, however the value was smaller than theoretical one. We found that control of grain size by adjusting the oxygen pressure was needed for the lower temperature operating anode - support SOFC.

AB - Recently, LaGaO3 based perovskite material of La 1-xSrxGa1-y-zMgyCOzO 3-(x+y+z) (LSGMCO) has been considered as one of promising candidates for an electrolyte of solid oxide fuel cell (SOFC) due to its high oxygen ion conductivity. LSGMCO electrolyte films were deposited on porous anode of Ni and NiO+Ce0.8Sm0.2O1.9 by pulsed laser deposition method. The LSGMCO film deposited at the substrate temperature of 800°C and the oxygen pressure of 20 Pa (72000 laser pulses) had columnar crystallized structures with large boundaries. The LSGMCO film had the high oxygen ion conductivity of 0.7 S/cm at a measurement temperature of 800°C. Open circuit voltage could be measured from our tube type SOFC unit cell utilizing the LSGMCO electrolyte film, however the value was smaller than theoretical one. We found that control of grain size by adjusting the oxygen pressure was needed for the lower temperature operating anode - support SOFC.

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M3 - Conference article

AN - SCOPUS:11144342344

SN - 0197-2618

VL - 3

SP - 1954

EP - 1958

JO - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

JF - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

T2 - Conference Record of the 2004 IEEE Industry Applications Conference; 39th IAS Annual Meeting

Y2 - 3 October 2004 through 7 October 2004

ER -

Preparation of oxygen ion conducting doped LaGaO₃ thin films on porous substrates by pulsed laser deposition

Abstract

All Science Journal Classification (ASJC) codes

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