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Titolo:
Study on the properties of YSZ electrolyte made by plaster casting method and the applications in solid oxide fuel cells
Autore:
Liu, J; Liu, W; Lu, Z; Pei, L; Jia, L; He, LY; Su, WH;
Indirizzi:
Jilin Univ, Dept Phys, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 chun 130023, Peoples R China
Titolo Testata:
SOLID STATE IONICS
fascicolo: 1-2, volume: 118, anno: 1999,
pagine: 67 - 72
SICI:
0167-2738(199903)118:1-2<67:SOTPOY>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Keywords:
YSZ; solid oxide electrolyte; fuel cell; plaster casting;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, J Jilin Univ, Dept Phys, 119 Jiefang Rd, Changchun 130023, Peoples R China Jilin Univ 119 Jiefang Rd Changchun Peoples R China 130023 R China
Citazione:
J. Liu et al., "Study on the properties of YSZ electrolyte made by plaster casting method and the applications in solid oxide fuel cells", SOL ST ION, 118(1-2), 1999, pp. 67-72

Abstract

Yttrium stabilized zirconia (ZrO2)(0.92)(Y2O3)(0.08) (YSZ) is synthesized using the solid method and formed by plaster casting technique to make an electrolyte of a solid oxide fuel cell (SOFC). The densities of the obtainedsamples increase as the sintering temperature increases. The relative density of the sample sintered at 1550 degrees C is 93%. Gas-tight can be realized as the thickness of the sample is 0.2 mm, so that it can be used as theelectrolyte of an SOFC. Cubic fluorite structures appear in the samples sintered above 1300 degrees C. The results of SEM measurement show that as the sintering temperature is raised, the crystal grain size of the sample increases and the porosity decreases. The results obtained by measuring the electrical properties show that, under the same temperature, the grain resistivities of the samples sintered at different temperatures are almost the same, but the crystal boundary resistivities are different. It can be calculated from the experimental results that the conductive activation energy of the crystal boundary for the samples sintered at 1300 degrees C, 1400 degrees C, and 1550 degrees C is 0.66, 0.86 and 0.98 eV, respectively, and that of the grain for the samples sintered at different temperatures is 0.82 eV. Spigot-shaped electrolyte components are made using the above mentioned technique, and a two-cell-series SOFC is set up. Its maximum output is about 0.1 W/cm(2) at 930 degrees C. (C) 1999 published by 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 06/04/20 alle ore 05:10:46