Dispersant effects on YSZ electrolyte characteristics for solid oxide fuel cells

被引：11
|
作者：
Curi, M. O. [1 ,2 ]
Ferraz, H. C. [1 ]
Furtado, J. G. M. [2 ]
Secchi, A. R. [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Chem Engn Program, COPPE, BR-21941972 Rio De Janeiro, Brazil
[2] CEPEL, Elect Energy Res Ctr, BR-21941911 Rio De Janeiro, Brazil
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 05期
关键词：
Suspensions; Nanocomposites; Electrical conductivity; ZrO2; Fuel cell; CARBIDE; FILMS;
D O I：
10.1016/j.ceramint.2015.01.072
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：
The effects of three types of dispersants on nanometric electrolyte composed by 8 mol% yttrium stabilized zirconia (YSZ8 N) to SOFC application are studied. Terpineol, poly(ethylene) oxide, and soy lecithin were chosen to be tested. Zeta potential of particles was affected by the treatment with these dispersants. All dispersants increased the electric conductivity in comparison with non-treated YSZ8 N at all evaluated temperatures (700, 800, 900, and 1000 degrees C). Terpineol and lecithin were the most effective dispersants,. increasing the electrical conductivity of YSZ8 N from 0.1 mu S cm(-1) to about 0.4 S cm(-1) at 1000 degrees C. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：6141 / 6148
页数：8
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