A high-performance ceramic composite anode for protonic ceramic fuel cells based on lanthanum strontium vanadate

被引：23
作者：
Song, Sang-Hyun [1 ]
Yoon, Sung-Eun [1 ]
Choi, Jaewon [1 ]
Kim, Byung-Kook [2 ]
Park, Jong-Sung [1 ]
机构：
[1] Myongji Univ, Dept Mat Sci & Engn, Seoul 449728, Gyeonggi Do, South Korea
[2] Korea Inst Sci & Technol, High Temp Energy Mat Res Ctr, Seoul 136791, South Korea
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 29期
关键词：
Solid oxide fuel cells; Protonic ceramics; Infiltration; Composite electrodes; Lanthanum strontium vanadate; BA0.5SR0.5ZN0.2FE0.8O3-DELTA PEROVSKITE CATHODE; CONDUCTING ELECTROLYTES; SOFC CATHODES; STABILITY;
D O I：
10.1016/j.ijhydene.2014.03.219
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：
The composite electrodes for protonic ceramic fuel cells (PCFC) were fabricated by infiltration of (La0.8Sr0.2)FeO3-delta (LSF) cathode and (La0.7Sr0.3)V0.90O3-delta (LSV) anode into a porous protonic ceramic, Ba(Ce0.51Zr0.30Y0.15Zn0.04)O3-delta (BCZY-Zn), respectively. Further, Pd-ceria catalysts were added into the composite anode. In the same method, the oxygen ion conducting fuel cells with the yttria-stabilized zirconia as an electrolyte (YSZ cell) were also fabricated. At 973 K, the non-ohmic area specific resistance (ASR) of PCFC (0.09 Omega cm(2)) was much smaller than that of the YSZ cell (0.28 Omega cm(2)) although the protonic conductivity of BCZY-Zn was slightly smaller than the oxygen ion conductivity of YSZ. According to the analysis of the symmetric cells with BCZY-Zn as an electrolyte, the LSV-composite anode showed better performance than the LSF-composite cathode at low temperatures. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：16534 / 16540
页数：7
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