High performance cobalt-free Cu1.4Mn1.6O4 spinel oxide as an intermediate temperature solid oxide fuel cell cathode

被引：62

作者：

Zhen, Shuying ^{[1
]}

Sun, Wang ^{[3
]}

Li, Peiqian ^{[3
]}

Tang, Guangze ^{[2
]}

Rooney, David ^{[4
]}

Sun, Kening ^{[3
]}

Ma, Xinxin ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Sci & Technol Precis Hot Proc Met, Harbin 150001, Peoples R China

[3] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Chem Power Source & Green Catalys, Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China

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

来源：

JOURNAL OF POWER SOURCES | 2016年 / 315卷

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Solid oxide fuel cell; Cathode; Spinel; Cobalt-free; OXYGEN REDUCTION; FABRICATION; INTERCONNECT; ELECTRODES; PARAMETERS; LAYERS; LSM;

D O I：

10.1016/j.jpowsour.2016.03.046

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：

In this work Cu1.4Mn1.6O4 (CMO) spinel oxide is prepared and evaluated as a novel cobalt-free cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). Single phase CMO powder with cubic structure is identified using XRD. XPS results confirm that mixed Cu+/Cu2+ and Mn3+/Mn4+ couples exist in the CMO sample, and a maximum conductivity of 78 S cm(-1) is achieved at 800 degrees C. Meanwhile, CMO oxide shows good thermal and chemical compatibility with a 10 mol% Sc2O3 stabilized ZrO2 (ScSZ) electrolyte material. Impedance spectroscopy measurements reveals that CMO exhibits a low polarization resistance of 0.143 Omega cm(2) at 800 degrees C. Furthermore, a Ni-ScSZ/ScSZ/CMO single cell demonstrates a maximum power density of 1076 mW cm(-2) at 800 degrees C under H-2 (3% H2O) as the fuel and ambient air as the oxidant. These results indicate that Cu1.4Mn1.6O4 is a superior and promising cathode material for IT-SOFCs. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：140 / 144

页数：5

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