Fabrication and structural properties of porous Cu-YSZ cermets for solid oxide fuel cells

被引：8
|
作者：
Kim, C. M. [1 ]
Kim, J. [1 ]
Park, K. [1 ]
机构：
[1] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, Seoul 143747, South Korea
来源：
POWDER TECHNOLOGY | 2014年 / 254卷
关键词：
Solid state reaction; Sintering; Microstructure; Porosity; SOFC; DIRECT OXIDATION; SOFC ANODE; MICROSTRUCTURE; ELECTROLYTES; ZIRCONIA; BEHAVIOR;
D O I：
10.1016/j.powtec.2014.01.007
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, porous Cu-YSZ cermets with various Cu contents are fabricated and their crystal structure and morphological features are investigated by X-ray diffraction and scanning electron microscopy. Carbon black-containing CuO/Y2O3-stabilized ZrO2 (YSZ) composites exhibit a highly porous structure due to the evolution of CO and CO2 gasses during sintering. The porosity of the CuO/YSZ composites decreases with increases of the sintering temperature and CuO content. Highly porous Cu/YSZ cermets are fabricated by reducing the porous CuO/YSZ composites in (Ar + 6% H-2) atmosphere. Higher CuO content and higher sintering temperature reduce the porosity of Cu/YSZ cermets after reduction treatment. The microstructure and porosity of Cu/YSZ cermets as an anode material are remarkably affected by the CuO content, sintering temperature, and carbon black content. We believe that the porous Cu/YSZ cermets are a promising anode material for high performance of SOFC. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：425 / 431
页数：7
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