Fabrication of highly porous yttria-stabilized zirconia by acid leaching nickel from a nickel-yttria-stabilized zirconia cermet

被引：68

作者：

Kim, H ^{[1
]}

da Rosa, C ^{[1
]}

Boaro, M ^{[1
]}

Vohs, JM ^{[1
]}

Gorte, RJ ^{[1
]}

机构：

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

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2002年 / 85卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.2002.tb00299.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Porous Y2O3-stabilized ZrO2 (YSZ) samples were synthesized by preparing NiO/YSZ composites by tape casting and calcining at 1800 K, reducing the NiO to nickel in H-2 at 973 K, and finally leaching the nickel out of the structure with 2.2M HNO3 at 353 K. Porous YSZ was prepared from NiO/YSZ composites containing 0, 20,40, and 50 wt% NiO. Complete removal of the nickel was demonstrated by XRD, weight changes, and porosity increases. Porosities >75% could be achieved without structural collapse of the YSZ phase. Finally, the method was applied to the fabrication of a solid oxide fuel cell with a copper-based anode operating on H-2 and n-butane.

引用

页码：1473 / 1476

页数：4

共 17 条

[1] CATALYTIC GROWTH OF CARBON FILAMENTS [J].