Electrical and microstructural investigations of cermet anode/YSZ thin film systems

被引：51

作者：

Kek, D

Panjan, P

Wanzenberg, E

Jamnik, J

机构：

[1] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia

[2] Forschungszentrum Julich, Inst Werkstoffe & Verfahren Energietech, D-52425 Julich, Germany

[3] Natl Inst Chem, SI-1000 Ljubljana, Slovenia

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2001年 / 21卷 / 10-11期

关键词：

films; fuel cells; impedance; Y2O3; ZrO2;

D O I：

10.1016/S0955-2219(01)00131-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We describe the preparation, electrochemical and structural properties of the thin film Y-stabilized ZrO2 (YSZ), of interest for solid oxide fuel cell (SOFC) at an operating temperature of 800 degreesC. Thin films of YSZ were prepared by reactive sputtering deposition of Zr-Y targets in Ar-O-2 mixture atmospheres. The thickness of the YSZ film, deposited onto the porous NiO-YSZ substrates, is approximately 8 mum. The microstructure of the YSZ film was investigated using scanning electron microscope. The electrochemical properties of a thin film cell Ag/NiO-YSZ/YSZ/Ag were studied using impedance spectroscopy. The electrolyte and electrode (substrate) resistances were measured under different atmospheres as a function of temperature. Above 600 degreesC the ohmic resistance of the cermet electrode (substrate) is comparable to the ionic resistance of the solid electrolyte. This is probably influenced by the cermet electrode microstructure. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1861 / 1865

页数：5

共 5 条

[1]

Charpentier P, 1997, ELEC SOC S, V97, P1169

[2]

HOBEIN B, IN PRESS J EUR CERAM

[3]

SKRIVASATVA PK, 1996, 2 EUR SOFC FOR, P761

[4]

STEELE BCH, 1994, P 1 EUR SOL OX FUEL, V1, P375

[5] Fabrication of thin electrolytes for second-generation solid oxide fuel cells [J].

Will, J ;

Mitterdorfer, A ;

Kleinlogel, C ;

Perednis, D ;

Gauckler, LJ .

SOLID STATE IONICS, 2000, 131 (1-2) :79-96

← 1 →