Effects of anode surface modification on the performance of low temperature SOFCs

被引：36

作者：

Ai, Na

Lue, Zhe ^{[1
]}

Chen, Kongfa

Huang, Xiqiang

Du, Xiaobo

Su, Wenhui

机构：

[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China

[2] Jilin Univ, Dept Condensed Matter Phys, Changchun 130022, Peoples R China

[3] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 171卷 / 02期

关键词：

solid oxide fuel cell; anode functional layer (AFL); three-phase boundary (TPB); slurry spin coating; Sm0.2Ce0.8O1.9 (SDC);

D O I：

10.1016/j.jpowsour.2007.06.055

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：

An anode functional layer (AFL, similar to 5 mu m) for improving the cell performance was fabricated by the slurry spin coating method on the porous surface of an anode substrate. The effects of the AFL on the anode/electrolyte interfacial morphology and the Sm0.2Ce0.8O1.9 (SDC) film deposition process were evaluated. And the electrochemical characteristics of the cells with and without the AFL were tested for comparison. With the AFL layer, the cell performance was greatly improved and the maximum power density was increased from 0.733 to 0.884 W cm(-2) at 600 degrees C and from 1.085 to 1.213 W cm(-2) at 650 degrees C. The systematical analysis indicated that the AFL could effectively reduce the anode polarization loss by increasing the three-phase boundary (TPB) length. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：489 / 494

页数：6

共 15 条

[1] Oxidation mechanism and effective anode thickness of SOFC for dry methane fuel [J].