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초록
La(0.8)Sr(0.2)Ga(0.8)Mg(0.2)O(2.8) powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH(4))(2)CO(3)]/([La(3+)] + [Sr(2+)] + [Ga(3+)] + [Mg(2+)])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La(0.8)Sr(0.2)Ga(0.8)Mg(0.2)O(2.8) specimen by low-temperature sintering. (C) 2009 Elsevier B.V. All rights reserved.
키워드
Sr- and Mg-doped lanthanum gallate (LSGM); Carbonate coprecipitation; Solid oxide fuel cell; Low-temperature sintering; DOPED LANTHANUM GALLATE; PEROVSKITE-TYPE OXIDE; CARBONATE COPRECIPITATION; SOLID-ELECTROLYTE; FUEL-CELL; LAGAO3; ANODE; PHASE; CERIA; CONDUCTOR
- 제목
- Preparation of LSGM powders for low temperature sintering
- 저자
- Cho, Pyeong-Seok; Park, Seung-Young; Cho, Yoon Ho; Kim, Sun-Jung; Kang, Yun Chan; Mori, Toshiyuki; Lee, Jong-Heun
- 발행일
- 2009-06-22
- 유형
- Article; Proceedings Paper
- 권
- 180
- 호
- 11-13
- 페이지
- 788 ~ 791