Evolution of the sintering ability, microstructure, and cell performance of Ba0.8Sr0.2Ce0.8-x-yZryInxY0.2O3-δ (x = 0.05, 0.1 y = 0, 0.1) proton-conducting electrolytes for solid oxide fuel cell

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Title:	Evolution of the sintering ability, microstructure, and cell performance of Ba0.8Sr0.2Ce0.8-x-yZryInxY0.2O3-δ (x = 0.05, 0.1 y = 0, 0.1) proton-conducting electrolytes for solid oxide fuel cell
Authors:	鄭憲清;TSAI, Pei-Hua;HSI, Chi-Shiung;CHANG, Jeng-Kuei;REN, Yu-Jing;JANG, Jason Shian-Ching;CHEN, Han-Wen;LEE, Sheng-Wei;LIN, Jing-Chie;HUNG, I-Ming;HSU, Kai-Ti
Contributors:	工學院材料科學與工程研究所
Keywords:	Chemical stability;Electrical conductivity;Electrolyte;Indium doping;Sintering;Solid oxide fuel cells
Date:	2015-04-01
Issue Date:	2026-04-23 11:34:23 (UTC+8)
Publisher:	Ceramic Society of Japan;The Ceramic Society of Japan
Abstract:	摘要： Ba0.8Sr0.2Ce0.8−x−yZryInxY0.2O3−δ (x = 0.05, 0.1 y = 0, 0.1) proton-conducting oxides are prepared using a solid state reaction process. The effect of indium contents on the microstructures, chemical stability, electrical conductivity, and sintering ability of these Ba0.8Sr0.2Ce0.6Zr0.2InxY0.2−xO3−δ oxides were systemically investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and two probe conductivity analysis. The results reveal that the Ba0.8Sr0.2Ce0.6Zr0.2InxY0.2−xO3−δ oxides are cubic perovskite crystal structure without second phase. Surface morphology of 1450°C, 4 h sintered oxides shows a dense microstructure. The optimum conductivity of Ba0.8Sr0.2Ce0.75In0.05Y0.2O3−δ oxide is 0.011 S/cm measured at 800°C. Chemical stability of the oxides to resist CO2 at 600°C is effectively improved by doping 0.1 at % indium or more. In addition, the laminated electrolyte and anode layers which fabricated by tape casting were co-sintered at 1450°C for 4 h. The sintered half-cell coated with Pt paste as cathode was used for I–V curve performance testing. The performance of the single cell of anode supported proton-solid oxide fuel cell (P+-SOFC) have powder density of 139.8 mW/cm at 800°C. Therefore, the Ba0.8Sr0.2Ce0.75In0.05Y0.2O3−δ ceramic is suggested to be a potential electrolyte material for P+-SOFC applications. 其他題名： J. Ceram. Soc. Japan 出版者： The Ceramic Society of Japan 出版日期： 2015 出處： Journal of the Ceramic Society of Japan, 2015/04/01, Vol.123(1436), pp.193-198 資源來源： J-STAGE Free 版權： 2015 The Ceramic Society of Japan 識別號： ISSN: 1348-6535 識別號： ISSN: 1882-0743 識別號： EISSN: 1348-6535 識別號： DOI: 10.2109/jcersj2.123.193
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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