Preparation and properties of Ni/YSZ anode by coating precipitation method

被引：47

作者：

Wang, FH ^{[1
]}

Guo, RS ^{[1
]}

Wei, QT ^{[1
]}

Zhou, Y ^{[1
]}

Li, HL ^{[1
]}

Li, SL ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Maching Technol, Minist Educ, Tianjin 300072, Peoples R China

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 24期

关键词：

nanocomposites; microstructure; electrical properties; coating precipitation method;

D O I：

10.1016/j.matlet.2004.05.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NiO/yttria-stabilized zirconia (YSZ) powder was prepared by coating precipitation of ZrOCl2.8H(2)O and YCl3, which produced a layer of amorphous zirconium hydroxide homogeneously coated onto the surface of NiO powder. The YSZ coating layer was crystallized to cubic ZrO2 with the size of about 20 nm after calcining at 600 and 800 degreesC, respectively. The main microstructure change was the agglomeration and coarsening of metallic Ni. The YSZ coating layer on the NiO surface using the coating precipitation method efficiently prevented the sintering and agglomeration of Ni. YSZ formed a continuous network structure, and Ni particles were dispersed homogeneously in the YSZ network through SEM analysis, which made a great contribution to the improvement of electrical conductivity of the Ni/YSZ cermet. The conductivity reached about 900 S/cm between 600 and 800 degreesC, so it was a suitable candidate anode material for intermediate-temperature solid oxide fuel cells (SOFCs). (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：3079 / 3083

页数：5

共 17 条

[1] Performance and stability of SOFC anode fabricated from NiO/YSZ composite particles [J].