Anode Performances of Ni/(CeO2)1-x(LnO1.5)x (Ln: Lanthanoids) in SOFCs Using Hydrocarbon Fuels

被引：4

作者：

Asamoto, M. ^{[1
]}

Miyake, S. ^{[1
]}

Saito, A. ^{[1
]}

Yamaura, H. ^{[1
]}

Yahiro, H. ^{[1
]}

Itagaki, Y. ^{[1
]}

Sadaoka, Y. ^{[1
]}

机构：

[1] Ehime Univ, Dept Mat Sci & Biotechnol, Grad Sch Sci & Engn, Matsuyama, Ehime 7908577, Japan

来源：

SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2 | 2007年 / 7卷 / 01期

关键词：

D O I：

10.1149/1.2729281

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The anode performances of Ni/(CeO2)(1-x)(LnO(1.5))(x) (Ln: La, Pr, Nd, Sm, Gd, and Yb) were investigated in direct-methane solid oxide fuel cells. Among the anodes tested in the present study, Ni/CeO2-Sm2O3 and Ni/CeO2-Yb2O3 composite anodes showed relatively low anodic overpotential. The anodic overpotential of Ni(x wt%)/(CeO2)(1-y)(SmO1.5)(y) depended strongly on Ni content, while it less depended on Sm content. The catalytic activity of methane oxidation was measured for Ni/LnDC at 973 K and Ni/CeO2 and Ni/CeO2-Yb2O3 samples showed high catalytic activity. This result suggests that the activity for the direct oxidation of methane by O-2 is not the main factor controlling the anodic overpotential in direct-methane solid oxide fuel cell.

引用

页码：1711 / 1716

页数：6

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