Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第15卷    第9期    总第78期    2005年9月

[PDF全文下载]        [Flash在线阅读]

    

文章编号: 1004-0609(2005)09-1411-05
阳极组分对热喷涂制备SOFC输出特性的影响
李成新, 邢亚哲, 杨冠军, 李长久

(西安交通大学 材料科学与工程学院 金属材料强度国家重点实验室, 西安 710049)

摘 要:  针对传统管状与板块结构SOFC的特点, 提出了集两种结构设计的优点为一体的金属陶瓷支撑管状结构SOFC, 并采用低成本的火焰喷涂与等离子喷涂制备电池各结构层。 采用3种不同成分与结构的阳极探讨了阳极结构对电池输出特性的影响, 结果表明, 阳极结构对电池运行时的极化产生显著影响, 采用小颗粒的NiO与YSZ的复合粉末制备的阳极, 可以有效增加阳极的三相界面, 从而降低阳极极化, 显著提高电池的输出功率密度, 1000℃时可达到最大值0.57W/cm2。 这些结果为优化电池阳极结构层的设计与制备提供了依据。

 

关键字:  固体氧化物燃料电池; 阳极; 热喷涂; 三相界面

Effect of anode microstructure on performance of SOFC fabricated by thermal spraying
LI Cheng-xin, XING Ya-zhe, YANG Guan-jun, LI Chang-jiu

State Key Laboratory for Mechanical Behavior of Materials,
School of Materials Science and Engineering, Xi'an Jiaotong University,
Xi'an 710049, China

Abstract: A cermet supported tubular SOFC was manufactured by thermal spray processes to aim at reducing the production cost. The effect of the anode microstructure on the performance of SOFC was investigated. The results show that the maximum output power density strongly depends on the anode microstructure. The length and density of the three-phase boundaries (TPB) can be increased by decreasing the particle size of YSZ and Ni in composite anode. The performance of SOFC can be improved by modifying the active TPB length and TPB density. It is revealed that the present SOFC of the distributed Ni/YSZ composite anode manufactured by thermal spray process reaches to a maximum output power density of 0.57W/cm2 at 1000℃. All these results can be used for preparation of optimizing the anode structure.

 

Key words: solid oxide fuel cell; anode; thermal spray; triple-phase boundary

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com