Processing and characterizations of a novel proton-conducting BaCe0.35Zr0.50Y0.15O3-δ electrolyte and its nickel-based anode composite for anode-supported IT-SOFC

被引：17
作者：
Baral A.K. [1 ,2 ]
Choi S. [1 ]
Kim B.K. [1 ]
Lee J.-H. [1 ]
机构：
[1] High Temperature Energy Materials Center, Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul
[2] Department of Chemistry, University of Calgary, 2500 University Dr NW, Calgary, T2N1N4, AB
来源：
Materials for Renewable and Sustainable Energy | 2014年 / 3卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Cell fabrication; Electrical conductivity; Proton conductor; SOFC;
D O I：
10.1007/s40243-014-0035-4
中图分类号：
学科分类号：
摘要：
This work presents the synthesis and characterizations of a stable and well-sinterable proton conductor BaCe0.35Zr0.50Y0.15O3-δ in which a transition of conductivity occurred steeply from the order of 10-3 to 10-2 S cm-1 and activation energy changed from 0.35 to 0.22 eV in the temperature range from 350 to 400 °C, due to the dissociation of protons from the dopant-proton defect pairs. The anode composite Ni-BaCe0.35 Zr0.50Y0.15O3-δ (40:60 vol%) prepared by liquid condensation process showed comparatively very high electrical conductivity than the existing solid oxide fuel cell (SOFC) anodes, in the temperature range of 350-800 °C. Fabrication (by screen printing and co-firing processes), performance and post-mortem analysis of anode-supported protonic SOFC cell using these materials are discussed elaborately. © 2014 The Author(s).
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