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High-performance low-temperature solid oxide fuel cell with novel BSCF cathode

被引：202
作者：
Liu, Q. L.
Khor, Khiam Aik [1 ]
Chan, S. H. [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Fuel Cell Strateg Res Programme, Singapore 639798, Singapore
来源：
JOURNAL OF POWER SOURCES | 2006年 / 161卷 / 01期
关键词：
solid oxide fuel cell; low-temperature; anode-supported; novel BSCF cathode; gadolina-doped ceria electrolyte; power density;
D O I：
10.1016/j.jpowsour.2006.03.095
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：
An anode-supported solid oxide fuel cell (SOFC), consisting of a dense 10 mu m Gd0.1Ce0.9O1.95 (GDC) electrolyte, a porous Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) cathode and a porous Ni-GDC cermet anode, is successfully assembled and electrochemically characterized. With humidified (3% water vapour) hydrogen as the fuel and air as the oxidant, the cell exhibits open-circuit voltages of 0.903 and 0.984 V when operating at 600 and 500 degrees C, respectively. The cell produces peak power densities of 1329, 863, 454, 208 and 83 mW cm(-2) at 600, 550, 500, 450 and 400 degrees C, respectively. These results are impressive and demonstrate the potential of BSCF for use as the cathode material in new-generation SOFCs with GDC as the electrolyte. In addition, the sustained performance at temperatures below 600 degrees C warrants commercial exploitation of this SOFC in stationary and mobile applications. (c) 2006 Elsevier B.V. All rights reserved.
引用
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页码：123 / 128
页数：6
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