Electrochemical performance of a mechanochemically prepared submicron-sized crystalline Nd1.8Ce0.2CuO4±δ cathode for intermediate temperature solid oxide fuel cells

被引：11

作者：

Khandale, A. P. ^{[1
]}

Bhoga, S. S. ^{[1
]}

机构：

[1] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 25期

关键词：

Cathode; Mixed-ionic-electronic conductors (MIECs); dc conductivity; Electrochemical impedance spectroscopy (EIS); Intermediate temperature solid oxide fuel cell (IT-SOFC); Area specific resistance (ASR); SUBSTITUTED ND2CUO4; OXYGEN;

D O I：

10.1016/j.electacta.2011.07.130

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

To produce a Nd 1.8Ce 0.2CuO 4±δ solid solution, the oxide form of the reagents were milled for 36 h and sintered at 1173 K for 8 h in a microwave furnace. The transition from a negative temperature coefficient (NTC) of conductivity to a positive temperature coefficient (PTC) was suppressed due to the submicron size of the crystallites. The low-frequency response in the complex impedance plane fit the Gerischer element. At 973 K, the area specific resistance (ASR) of Nd 1.8Ce 0.2CuO 4±δ/GDC/Nd 1.8Ce 0.2CuO 4±δ sintered at 1073 K for 2 h was 1.92 ohm cm 2. © 2011 Elsevier Ltd. All rights reserved.

引用

页码：9219 / 9223

页数：5

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