La0.1SrxCa0.9-xMnO3-δ-Sm0.2Ce0.8O1.9 composite material for novel low temperature solid oxide fuel cells

被引：31
作者：
Wang, Xunying [1 ]
Afzal, Muhammad [2 ]
Deng, Hui [1 ]
Dong, Wenjing [1 ]
Wang, Baoyuan [1 ]
Mi, Youquan [1 ]
Xu, Zhaoyun [1 ]
Zhang, Wei [1 ]
Feng, Chu [1 ]
Wang, Zhaoqing [1 ]
Wu, Yan [3 ]
Zhu, Bin [1 ,2 ]
机构：
[1] Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China
[2] KTH Royal Inst Technol, Dept Energy Technol, SE-10044 Stockholm, Sweden
[3] China Univ Geosci Wuhan, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 27期
基金：
瑞典研究理事会; 中国国家自然科学基金;
关键词：
Perovskite ionic-conductor composite material; Electrolyte; Low temperature SOFCs; IONIC-CONDUCTIVITY; CATHODE MATERIALS; PERFORMANCE; STABILITY; ANODES; PHASE;
D O I：
10.1016/j.ijhydene.2017.05.158
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：
Lowering the operating temperature of the solid oxide fuel cells (SOFCs) is one of the world R&D tendencies. Exploring novel electrolytes possessing high ionic conductivity at low temperature becomes extremely important with the increasing demands of the energy conversion technologies. In this work, perovskite La0.1SrxCa0.9-xMnO3-delta (LSCM) materials were synthesized and composited with the ionic conductor Sm0.2Ce0.8O1.9 (SDC). The LSCM SDC composite was sandwiched between two nickel foams coated with semiconductor Ni0.8Co0.15Al0.05LiO2-delta (NCAL) to form the fuel cell device. The strontium content in the LSCM and the ratios of LSCM to SDC in the LSCM-SDC composite have significant effects on the electrical properties and fuel cell performances. The best performance has been achieved from LSCM-SDC composite with a weight ratio of 2:3. The fuel cells showed OCV over 1.0 V and excellent maximum output power density of 800 mW cm(-2) at 550 degrees C. Device processes and ionic transport processes were also discussed. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17552 / 17558
页数：7
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