Performance of GDC-impregnated Ni anodes of SOFCs

被引：55

作者：

Jiang, SP ^{[1
]}

Zhang, S ^{[1
]}

Zhen, YD ^{[1
]}

Koh, AP ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Fuel Cells Strateg Res Program, Singapore 639798, Singapore

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 09期

关键词：

D O I：

10.1149/1.1783112

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ni electrodes impregnated with nanosized electrocatalytic active (Gd, Ce) O-2 (GDC) particles were fabricated and investigated as anodes for H-2 oxidation reaction in solid oxide fuel cells (SOFCs). Incorporation of nanosized ionic conducting GDC particles significantly reduced the electrode interface resistance and polarization potential. With the impregnation of 8.5 vol % GDC in Ni anodes, the electrode interface resistance was 0.71 Omega cm(2) at 800 degreesC, close to the good performance value of 0.24 Omega cm(2) reported on Ni (50 vol %)/ YSZ (50 vol %) cermet anodes at the same temperature. Nanosized GDC particles were deposited on the surface of Ni grains, forming a thin and uniform GDC layer. Such a unique microstructure shows a potential application as direct methane oxidation anodes for SOFCs based on natural gas fuel. (C) 2004 The Electrochemical Society.

引用

页码：A282 / A285

页数：4

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