Fabrication of tubular NiO/YSZ anode-support of solid oxide fuel cell by gelcasting

被引：48

作者：

Dong, Dehua ^{[1
]}

Gao, Jianfeng ^{[1
]}

Liu, Xingqin ^{[1
]}

Meng, Guangyao ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 165卷 / 01期

基金：

中国国家自然科学基金;

关键词：

gelcasting; solid oxide fuel cells; tubular anode-support; microstructure;

D O I：

10.1016/j.jpowsour.2006.10.098

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：

A gelcasting process has been developed to fabricate tubular NiO/YSZ anode-support for solid oxide fuel cells (SOFCs) successfully. The theological behaviors of the ceramic particle suspensions for gelcasting were investigated as a function of the process parameters, such as the amount of pore former, pH value, dispersant concentration, monomer concentration, ball-mill time and solid loading. The sintering shrinkage, microstructure, bending strength and electrical conductivity of the sintered specimens were examined. The tubular Ni/YSZ anode-support obtained under the optimized preparation conditions exhibited a porosity of 39.6%, mean pore size of below 0.9 mu m, 482 s cm(-1) in electrical conductivity at 700 degrees C, and the bending strength of 112.8 MPa, which can well meet the requirements for SOFCs. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：217 / 223

页数：7

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