High performance of proton-conducting solid oxide fuel cell with a layered PrBaCo2O5+δ cathode

被引：120

作者：

Zhao, Ling ^{[1
]}

He, Beibei ^{[1
]}

Lin, Bin ^{[1
]}

Ding, Hanping ^{[1
]}

Wang, Songlin ^{[1
]}

Ling, Yihan ^{[1
]}

Peng, Ranran ^{[1
]}

Meng, Guangyao ^{[1
]}

Liu, Xingqin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2009年 / 194卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Proton-conducting solid oxide fuel cell; High performance; Cathode; ELECTROLYTE; SOFC;

D O I：

10.1016/j.jpowsour.2009.06.010

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：

A dense BaZr0.1Ce0.7Y0.2O3-delta (BZCY) electrolyte is fabricated on a porous anode by in situ drop-coating method which can lead to extremely thin electrolyte membrane (similar to 10 mu m in thickness). The layered perovskite structure oxide PrBaCo2O5-delta (PBCO) is synthesized by auto ignition process and initially examined as a cathode for proton-conducting IT-SOFCs. The electrical conductivity of PrBaCo2O5-delta (PBCO) reaches the general required value for the electrical conductivity of cathode absolutely. The single cell, consisting of PrBaCo2O5-delta (PBCO)/BaZr0.1Ce0.7Y0.2O3-delta (BZCY)/NiO-BaZr0.1Ce0.7Y0.2O3-delta (BZCY) structure, is assembled and tested from 600 to 700 degrees C with humidified hydrogen (similar to 3% H2O) as the fuel and air as the oxidant. An open-circuit potential of 1.01 V and a maximum power density of 545 mW cm(-2) at 700 degrees C are obtained for the single cell, and a low polarization resistance of the electrodes of 0.15 Omega cm(2) is achieved at 700 degrees C. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：835 / 837

页数：3

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