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

页码：42 / 46

页数：5

共 28 条

[11] Effect of palladium oxidation state on the kinetics and mechanism of the charge transfer reaction taking place at the Pd/YSZ interface [J].