Effect of doped ceria interlayer on cathode performance of the electrochemical cell using proton conducting oxide

Takaaki Sakai, Shotaro Matsushita, Junji Hyodo, Yuji Okuyama, Maki Matsuka, Tatsumi Ishihara, Hiroshige Matsumoto

研究成果: ジャーナルへの寄稿記事

6 引用 (Scopus)

抄録

Introduction of doped ceria interlayer to cathode/electrolyte interface of the electrochemical cell with proton conducting electrolyte was investigated using thin Ce 0.8Yb 0.2O 2-δ (YbDC) interlayer of about 500 nm thickness. YbDC interlayer conducted a large amount of protons as much as 170 mA cm -2. It was also found that cathode overpotential of the YbDC interlayer cells consistently showed a plateau at about 400 mV, at which that of the non-interlayer cells did not show, suggesting a possibility that cathode reaction is changed by introducing the doped ceria interlayer. This result also indicates that the interlayer showed high activity for cathode reaction when enough cathodic bias was applied. Especially, the interlayer showed high activity for the improvement of poor cathode reaction between SrZr 0.9Y 0.1O 3-α (SZY-91) electrolyte and platinum cathode.

元の言語英語
ページ(範囲)179-184
ページ数6
ジャーナルElectrochimica Acta
75
DOI
出版物ステータス出版済み - 7 30 2012

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Electrochemical cells
Cerium compounds
Oxides
Protons
Cathodes
Electrolytes
Platinum

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

これを引用

Effect of doped ceria interlayer on cathode performance of the electrochemical cell using proton conducting oxide. / Sakai, Takaaki; Matsushita, Shotaro; Hyodo, Junji; Okuyama, Yuji; Matsuka, Maki; Ishihara, Tatsumi; Matsumoto, Hiroshige.

:: Electrochimica Acta, 巻 75, 30.07.2012, p. 179-184.

研究成果: ジャーナルへの寄稿記事

Sakai, Takaaki ; Matsushita, Shotaro ; Hyodo, Junji ; Okuyama, Yuji ; Matsuka, Maki ; Ishihara, Tatsumi ; Matsumoto, Hiroshige. / Effect of doped ceria interlayer on cathode performance of the electrochemical cell using proton conducting oxide. :: Electrochimica Acta. 2012 ; 巻 75. pp. 179-184.
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AU - Sakai, Takaaki

AU - Matsushita, Shotaro

AU - Hyodo, Junji

AU - Okuyama, Yuji

AU - Matsuka, Maki

AU - Ishihara, Tatsumi

AU - Matsumoto, Hiroshige

PY - 2012/7/30

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AB - Introduction of doped ceria interlayer to cathode/electrolyte interface of the electrochemical cell with proton conducting electrolyte was investigated using thin Ce 0.8Yb 0.2O 2-δ (YbDC) interlayer of about 500 nm thickness. YbDC interlayer conducted a large amount of protons as much as 170 mA cm -2. It was also found that cathode overpotential of the YbDC interlayer cells consistently showed a plateau at about 400 mV, at which that of the non-interlayer cells did not show, suggesting a possibility that cathode reaction is changed by introducing the doped ceria interlayer. This result also indicates that the interlayer showed high activity for cathode reaction when enough cathodic bias was applied. Especially, the interlayer showed high activity for the improvement of poor cathode reaction between SrZr 0.9Y 0.1O 3-α (SZY-91) electrolyte and platinum cathode.

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