Novel nano-structured Pd plus yttrium doped ZrO2 cathodes for intermediate temperature solid oxide fuel cells

被引：70
作者：
Liang, Fengli [1 ]
Chen, Jing [1 ]
Cheng, Jinglan [1 ]
Jiang, San Ping [2 ]
He, Tianmin [2 ]
Pu, Jian [1 ]
Li, Jian [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Processing & Die & Mould Techno, Wuhan 430074, Hubei, Peoples R China
[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
solid oxide fuel cells; Pd nanoparticles; nano-structured Pd plus YSZ cathode; wet impregnation; oxygen reduction;
D O I：
10.1016/j.elecom.2007.10.016
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Novel nano-structured Pd+yttrium doped ZrO2 (YSZ) electrodes have been developed as cathodes of intermediate temperature solid oxide fuel cells (IT-SOFCs). Nano-sized Pd particles were introduced into the rigid and porous YSZ structure by PdCl2 Solution impregnation. The results show that Pd nanoparticles (20-80 nm) were uniformly distributed in the porous YSZ structure; and such nano-structured composite cathodes were highly active for the O-2 reduction reaction, with polarization resistances (R-E) of 0.11 and 0.22 Omega cm(2) at 750 and 700 degrees C and activation energy of 105 kJ mol(-1) that is significantly lower than those for the conventional perovskite-based cathodes (130-201 kJ mol(-1)). (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：42 / 46
页数：5
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