Ionic conductivity of dense BaZr0.5Ce0.3Ln0.2O3-δ (Ln = Y, Sm, Gd, Dy) electrolytes

被引：52

作者：

Bu, Junfu ^{[1
]}

Jonsson, Par G. ^{[1
]}

Zhao, Zhe ^{[1
,2
]}

机构：

[1] KTH Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden

[2] Shanghai Inst Technol, Dept Mat Sci & Engn, Shanghai 201418, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 272卷

关键词：

Barium cerate; Barium zirconate; Solid-state reactive sintering; Proton conductivity; DOPED BARIUM ZIRCONATE; PROTON CONDUCTOR; CHEMICAL-STABILITY; ELECTRICAL-CONDUCTIVITY; BAZRO3; NONSTOICHIOMETRY; TRANSPORT; BACEO3; NIO;

D O I：

10.1016/j.jpowsour.2014.09.056

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：

BaZr(0.5)Ce(0.3)Ln(0.2)O(3-delta) (BZCLn532, Ln = Y, Sm, Gd, Dy) based electrolytes were successfully synthesized by a cost-effective solid-state reactive sintering (SSRS) method while using 1.0 wt.% NiO as a sintering aid. Dense pellets of BZCLn532 compounds can be prepared at sintering temperatures of 1600 degrees C (BZCY532) and 1400 degrees C (BZCS532, BZCG532 and BZCD532). The conductivities of the dense BZCLn532 ceramics were tested in dry and wet air at temperatures of 700 degrees C-200 degrees C. On the basis of the obtained results, it could be concluded that the BZCY532-based electrolyte show promise for use as oxygen-ion conductors and proton conductors in intermediate temperature solid oxide fuel cells (ITSOFCs). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：786 / 793

页数：8

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