Incorporation and conduction of proton in Sr-doped LaMO3 (M=Al, Sc, In, Yb, Y)

Yuji Okuyama, Takeshi Kozai, Shohei Ikeda, Maki Matsuka, Takaaki Sakai, Hiroshige Matsumoto

研究成果: ジャーナルへの寄稿記事

33 引用 (Scopus)

抄録

In order to clarify the effect of the B site species in ABO3 perovskite oxides on the proton transport properties, the proton incorporation into a series of La0.9Sr0.1MO3-δ, (M = Al, Sc, In, Yb, Y) was studied by measuring the electrical conductivity and electromotive forces of the gas concentration cells, and by a thermogravimetric analysis. The proton concentration and electrical conductivity increased in the order of the B site species, Al < Y=Yb < Sc < In and Al < Y=Yb < In < Sc, respectively. La0.9Sr0.1AlO 3-δ showed an oxide ion conductivity, while La 0.9Sr0.1YbO3-δ and La 0.9Sr0.1YO3-δ exhibited a protonic conductivity in the temperature range of 573-1173 K. La0.9Sr 0.1ScO3-δ and La0.9Sr 0.1InO3-δ showed a protonic conductivity under 873 K, and a mixed proton and oxide ion conductivity at 1073 K.

元の言語英語
ページ(範囲)443-449
ページ数7
ジャーナルElectrochimica Acta
125
DOI
出版物ステータス出版済み - 4 10 2014

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Protons
Oxides
Ions
Electromotive force
Perovskite
Transport properties
Thermogravimetric analysis
Gases
Temperature
Electric Conductivity

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

これを引用

Incorporation and conduction of proton in Sr-doped LaMO3 (M=Al, Sc, In, Yb, Y). / Okuyama, Yuji; Kozai, Takeshi; Ikeda, Shohei; Matsuka, Maki; Sakai, Takaaki; Matsumoto, Hiroshige.

:: Electrochimica Acta, 巻 125, 10.04.2014, p. 443-449.

研究成果: ジャーナルへの寄稿記事

Okuyama, Yuji ; Kozai, Takeshi ; Ikeda, Shohei ; Matsuka, Maki ; Sakai, Takaaki ; Matsumoto, Hiroshige. / Incorporation and conduction of proton in Sr-doped LaMO3 (M=Al, Sc, In, Yb, Y). :: Electrochimica Acta. 2014 ; 巻 125. pp. 443-449.
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AU - Okuyama, Yuji

AU - Kozai, Takeshi

AU - Ikeda, Shohei

AU - Matsuka, Maki

AU - Sakai, Takaaki

AU - Matsumoto, Hiroshige

PY - 2014/4/10

Y1 - 2014/4/10

N2 - In order to clarify the effect of the B site species in ABO3 perovskite oxides on the proton transport properties, the proton incorporation into a series of La0.9Sr0.1MO3-δ, (M = Al, Sc, In, Yb, Y) was studied by measuring the electrical conductivity and electromotive forces of the gas concentration cells, and by a thermogravimetric analysis. The proton concentration and electrical conductivity increased in the order of the B site species, Al < Y=Yb < Sc < In and Al < Y=Yb < In < Sc, respectively. La0.9Sr0.1AlO 3-δ showed an oxide ion conductivity, while La 0.9Sr0.1YbO3-δ and La 0.9Sr0.1YO3-δ exhibited a protonic conductivity in the temperature range of 573-1173 K. La0.9Sr 0.1ScO3-δ and La0.9Sr 0.1InO3-δ showed a protonic conductivity under 873 K, and a mixed proton and oxide ion conductivity at 1073 K.

AB - In order to clarify the effect of the B site species in ABO3 perovskite oxides on the proton transport properties, the proton incorporation into a series of La0.9Sr0.1MO3-δ, (M = Al, Sc, In, Yb, Y) was studied by measuring the electrical conductivity and electromotive forces of the gas concentration cells, and by a thermogravimetric analysis. The proton concentration and electrical conductivity increased in the order of the B site species, Al < Y=Yb < Sc < In and Al < Y=Yb < In < Sc, respectively. La0.9Sr0.1AlO 3-δ showed an oxide ion conductivity, while La 0.9Sr0.1YbO3-δ and La 0.9Sr0.1YO3-δ exhibited a protonic conductivity in the temperature range of 573-1173 K. La0.9Sr 0.1ScO3-δ and La0.9Sr 0.1InO3-δ showed a protonic conductivity under 873 K, and a mixed proton and oxide ion conductivity at 1073 K.

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