Synthesis of Pr0.6Sr0.4FeO3-δ-xCe0.9Pr0.1O2-δ cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells

被引：29

作者：

Jin, Chao ^{[1
]}

Mao, Yachun ^{[3
]}

Rooney, David W. ^{[4
]}

Sun, Wang ^{[5
]}

Zhang, Naiqing ^{[2
,3
]}

Sun, Kening ^{[2
,3
]}

机构：

[1] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Sch Municipal & Environm Engn, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[3] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150001, Peoples R China

[4] Queens Univ, Sch Chem & Chem Engn, QUILL Res Ctr, Belfast BT9 5AG, Antrim, North Ireland

[5] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Chem Power Source & Green Catalys, Beijing 100081, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 06期

基金：

中国国家自然科学基金;

关键词：

One-pot method; Electrochemical performance; Cobalt-free composite cathode; Intermediate-temperature solid oxide fuel cells; ELECTROCHEMICAL PERFORMANCE; DOPED CERIA; IT-SOFC; PEROVSKITES; STABILITY; DESIGN;

D O I：

10.1016/j.ijhydene.2016.01.005

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：

Cobalt-free composite cathodes consisting of Pr0.6Sr0.4FeO3-delta-xCe(0.9)Pr(0.1)O(2-delta) (PSFO-xCPO, x = 0-50 wt%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R-p) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R-p of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm(-2) at 650, 700, 750 and 800 degrees C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 degrees C. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：4005 / 4015

页数：11

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