1997年4月
Preparation of perovskite-type La1-xSrxMnO3 films by vapor-phase processes and their electrochemical properties
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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- 巻
- 144
- 号
- 4
- 開始ページ
- 1362
- 終了ページ
- 1370
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1149/1.1837597
- 出版者・発行元
- ELECTROCHEMICAL SOC INC
Dense and thin La1-xSrxMnO3 film electrodes were prepared on yttria-stabilized zirconia (YSZ) electrolyte by vapor phase processes. In order to construct the electrochemical system, the YSZ film was first deposited by a chemical va deposition-electrochemical vapor deposition method on porous La0.85Sr0.15MnO3 substrate. Then the La1-xSrxMnO3 film was deposited on the YSZ film by using a vapor mixture of LaCl3, SrCl2 and MnCl2 as metal sources and humidified oxygen gas as an oxygen source. The as-prepared La1-xSrxMnO3 thin films were uniform and pinhole-free, and adhered strongly to the YSZ film. The electrochemical conductivity of the La1-xSrxMnO3 thin film was comparable to that of sintered La1-xSrxMnO3. The electrode interface resistance of the deposited La1-xSrxMnO3 film, which was determined by ac impedance measurements, was proportional to the La1-xSrxMnO3 film thickness, and the inverse of the electrode interface resistance was proportional to the electrode surface area of the La1-xSrxMnO3 thin film. In the La1-xSrxMnO3 thin-film electrode, it was concluded that oxygen is reduced to oxide ions at the electrode surface and they are transported through the electrode thin film to the electrolyte.
- リンク情報
- ID情報
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- DOI : 10.1149/1.1837597
- ISSN : 0013-4651
- Web of Science ID : WOS:A1997WX09000050