Lowering the Sintering Temperature of Low-Temperature Solid Oxide Fuel Cells with Sm3+ And Nd3+ Co-Doped Ceria Electrolyte

被引：0
作者：
Luo, Xiaoyan [1 ]
Wang, Cancan [2 ]
Yang, Yang [1 ]
Chen, Yonghong [2 ]
Huang, Qi [1 ]
Lin, Bin [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Energy Sci & Engn, Chengdu 611731, Sichuan, Peoples R China
[2] Huainan Normal Univ, Anhui Key Lab Low Temp Cofired Mat, Huainan 232001, Peoples R China
来源：
PROCEEDINGS OF 2017 2ND INTERNATIONAL CONFERENCE ON POWER AND RENEWABLE ENERGY (ICPRE) | 2017年
基金：
中国国家自然科学基金;
关键词：
solid oxide fuel cells; ceria; doping; ionic conductivity; electrochemical characterizations; ELECTRICAL-PROPERTIES; IONIC-CONDUCTIVITY; IT-SOFCS; CERAMICS; 500-DEGREES-C; CATHODES; ANODE; GD3+;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Low-temperature solid oxide fuel cell with co-doped ceria electrolyte is a promising high efficient and cost-effective power conversion device, which needs rapid progress. One of the main issues is high sintering temperatures (1500-1600 degrees C), increasing difficulty and cost in the cell fabrication process. To lower the sintering temperature, Fe has been evaluated as a sintering aid for Sm3+ and Nd3+ co-doped ceria electrolyte. The reduction in sintering temperature between Sm0.1Nd0.1Ce0.79Fe0.01O2-delta andSm(0.1)Nd(0.1)Ce(0.79)Fe(0.01)O(2-delta) is as much as 250 degrees C. The Sm(0.1)Nd(0.1)Ce(0.79)Fe(0.01)O(2-delta)sintered at an optimal sintering temperature of 1250 degrees C exhibits the highest grain-boundary conductivity and relative density, which is much higher than that of Sm0.1Nd0.1Ce0.79Fe0.01O2-delta. The doping of Fe increases both bulk conductivity and grain boundary conductivity of the SNDC electrolyte. An integrated single cell witSm(0.1)Nd(0.1)Ce(0.79)Fe(0.01)O(2-delta) electrolyte exhibits a high maximum power density of 458 mWcm(-2) at 650 degrees C, which is 20-30% higher than previous reports.
引用
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页码：1082 / 1088
页数：7
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