Influence of composition and Cu impregnation method on the performance of Cu/CeO2/YSZ SOFC anodes

被引：147

作者：

Jung, SW ^{[1
]}

Lu, C ^{[1
]}

He, HP ^{[1
]}

Ahn, KY ^{[1
]}

Gorte, RJ ^{[1
]}

Vohs, JM ^{[1
]}

机构：

[1] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA

来源：

JOURNAL OF POWER SOURCES | 2006年 / 154卷 / 01期

关键词：

fuel cells; ceria; copper; anodes;

D O I：

10.1016/j.jpowsour.2005.04.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we report on how different impregnation procedures affect the distribution and morphology of the Cu component in Cu/CeO2/YSZ (YSZ, yttria-stabilized zirconia) composite anodes and how this affects anode performance. Two different methods for Cu addition to the porous YSZ anode were investigated: impregnation using aqueous solutions of Cu(NO3)(2) and impregnation using aqueous solutions of Cu(NO3)(2) plus urea. The latter method produced a homogeneous distribution of Cu throughout the anode while the former resulted in a higher concentration of Cu near the exposed surface relative to that in the bulk. Studies of the thermal stability of the deposited copper layers and the influence of the Cu distribution on cell performance when operating with humidified H-2 as the fuel are also presented. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：42 / 50

页数：9

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