Improvement of Sintering, Thermal Behavior, and Electrical Properties of Calcium- and Transition Metal-Doped Yttrium Chromite

被引：13

作者：

Yoon, Kyung Joong ^{[1
]}

Cramer, Carolyn N. ^{[1
]}

Stevenson, Jeffry W. ^{[1
]}

Marina, Olga A. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 09期

关键词：

OXIDE FUEL-CELLS; LANTHANUM CHROMITE; THERMOELECTRIC-POWER; CATION SUBSTITUTION; DEFECT STRUCTURE; HIGH-TEMPERATURE; STABILITY; CONDUCTIVITY; PEROVSKITES; EXPANSION;

D O I：

10.1149/1.3456525

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Calcium-doped yttrium chromite was additionally doped with various transition metals on B-site to improve the sintering, thermal behavior, and electrical properties for use as an interconnect material in solid oxide fuel cells. With 10% B-site addition of Co, Cu, Ni, Fe, and Mn, the orthorhombic perovskite structure remained stable over a wide range of oxygen partial pressures. The substitution of Cu for chromium remarkably improved the sinterability and the substitution of Co and Ni significantly improved the electrical conductivity. Fe substitution slightly improved sinterability and electrical conductivity, and Mn doping had a negative effect on those properties. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3456525] All rights reserved.

引用

页码：D101 / D105

页数：5

共 34 条

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