Screen-printed BaCe0.8SM0.2O3-δ thin membrane solid oxide fuel cells with surface modification by spray coating

被引：34

作者：

Bi, Lei ^{[1
]}

Zhang, Shangquan ^{[1
]}

Lin, Bin ^{[1
]}

Fang, Shumin ^{[1
]}

Xia, Changrong ^{[1
]}

Liu, Wei ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Lab Adv Funct Mat & Devices, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 473卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Ceramics; Fuel cells; Sintering; Electrochemical impedance spectroscopy; ELECTROLYTE; CONDUCTORS; CATHODE; ANODE;

D O I：

10.1016/j.jallcom.2008.05.062

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：

Screen-printing technology was employed to fabricate BaCe0.8SM0.2O3-delta (BCS) electrolyte membranes on porous NiO-BCS anode substrates. With a mixture of BCS and La0.7Sr0.3FeO3-sigma as cathode, a single cell with 16 mu m thick BCS electrolyte generated maximum power densities of 222, 141, 72 mW/cm(2) at 700, 650 and 600 degrees C, respectively. After the electrolyte surface was modified by spray coating. the single cell with 16 mu m thick BCS electrolyte generated maximum power densities of 352, 241, 125 mW/cm(2) at 700, 650 and 600 degrees C, respectively. The improved performance of the fuel cell was attributed to the surface modification by spray coating promoting the adherence of the cathode to electrolyte, which was confirmed by both scanning electron microscope (SEM) observation and impedance measurement. The results illustrate that screen-printing technology with spray coating is a simple and low cost method for preparing thin electrolyte membranes of protonic ceramic fuel cells. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：48 / 52

页数：5

共 15 条

[1] Electrochemical properties of BaCe0.8Gd0.2O3 electrolyte films deposited on Ni-BaCe0.8Gd0.2O3 substrates [J].