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Titolo:
Miscibility gap in CeO2-ZrO2-YO1.5 system as an electrode of solid oxide fuel cell
Autore:
Sakai, N; Hashimoto, T; Katsube, T; Yamaji, K; Negishi, H; Horita, T; Yokokawa, H; Xiong, YP; Nakagawa, M; Takahashi, Y;
Indirizzi:
Natl Ind Adv Ind Sci & Technol, Fuel Cell Grp, AIST Tsukuba Cent 5, Tsukuba, Ibaraki 3058565, Japan Natl Ind Adv Ind Sci & Technol Tsukuba Ibaraki Japan 3058565 58565, Japan Nihon Univ, Coll Humanities & Sci, Dept Appl Phys, Setagaya Ku, Tokyo 1568550, Japan Nihon Univ Tokyo Japan 1568550 l Phys, Setagaya Ku, Tokyo 1568550, Japan Chuo Univ, Fac Sci & Engn, Bunkyo Ku, Tokyo 1128551, Japan Chuo Univ Tokyo Japan 1128551 ci & Engn, Bunkyo Ku, Tokyo 1128551, Japan
Titolo Testata:
SOLID STATE IONICS
fascicolo: 2, volume: 143, anno: 2001,
pagine: 151 - 160
SICI:
0167-2738(200106)143:2<151:MGICSA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZIRCONIA; CERIA;
Keywords:
miscibility gap; CcO(2); ZrO2; synchrotron XRD; SOFC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Sakai, N Natl Ind Adv Ind Sci & Technol, Fuel Cell Grp, AIST Tsukuba Cent 5, 1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan Natl Ind Adv Ind Sci & Technol 1-1 Higashi Tsukuba Ibaraki Japan 3058565
Citazione:
N. Sakai et al., "Miscibility gap in CeO2-ZrO2-YO1.5 system as an electrode of solid oxide fuel cell", SOL ST ION, 143(2), 2001, pp. 151-160

Abstract

To detect miscibility gap in [(CeO2)(x)(ZrO2)(1-x)](0.8)(YO1.5)(0.2) (x = 0-1), powders prepared by liquid-mixing method were investigated by conventional X-ray diffraction (NXRD) and Synchrotron X-ray diffraction (SXRD). The NXRD pattern of the samples, calcined at 873 K, exhibited a broadened cubic structure without any secondary phases. The lattice constants or samplesannealed at different temperatures were determined, and they show linear dependence on cerium content (x) except for 1273 K, which indicates that a complete solid solution can be obtained above 1473 K. The NXRD results on samples annealed at 1273 K exhibit deviation from Vegard's law. The SXRD patterns confirmed the existence of miscibility gap in the samples of x = 0.5-0.8 annealed at T = 1273 K for 778 h. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 12:45:52