固体氧化物燃料电池Cu-LSCM-CeO2/LSCM-YSZ/Ni-ScSZ复合阳极制备及性能

吕尧; 黄波; 顾习之; 候春一; 胡一星; 王晓颖; 朱新坚

doi:10.13208/j.electrochem.131129

电化学 >

2014 , Vol. 20 >Issue 5: 470 - 475

DOI: https://doi.org/10.13208/j.electrochem.131129

研究论文

固体氧化物燃料电池Cu-LSCM-CeO₂/LSCM-YSZ/Ni-ScSZ复合阳极制备及性能

吕尧 ,
黄波 ,
顾习之 ,
候春一 ,
胡一星 ,
王晓颖 ,
朱新坚

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上海交通大学机械与动力工程学院燃料电池研究所，上海 200240

收稿日期: 2013-11-29

修回日期: 2014-02-18

网络出版日期: 2014-02-23

基金资助

国家自然科学基金项目（No. 51201098）资助

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Fabrication and Characterization of the Ni-ScSZ Composite Anodes with a Cu-LSCM-CeO₂ Catalyst Layer in the Thin Film SOFC

LV Yao ,
HUANG Bo ,
GU Xi-Zhi ,
HOU Chun-Yi ,
HU Yi-Xing ,
WANG Xiao-Ying ,
ZHU Xin-Jian

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Institute of Fuel Cell, School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Received date: 2013-11-29

Revised date: 2014-02-18

Online published: 2014-02-23

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摘要

采用流延法制得LSCM-YSZ阳极支撑层/Ni-ScSZ阳极活性层/ScSZ电解质层复合膜，在LSCM-YSZ支撑层上印刷一层Cu-LSCM-CeO₂阳极催化层，即Cu-LSCM-CeO₂/LSCM-YSZ/Ni-ScSZ功能梯度层阳极. 研究表明，Cu/LSCM/CeO₂质量配比为2:7:1功能梯度阳极（LSCM-YSZ2010）有较好的性能，单电池以氢气和乙醇为燃料（750 ^oC）最大功率密度分别为511和390 mW?cm^-2，单电池稳定性实验表明，LSCM-YSZ2010阳极单电池以乙醇为燃料750 ^oC长时间运行218 h，性能稳定. X-射线能量散射分析表明该阳极具有较好的抗碳沉积性能.

关键词： 固体氧化物燃料电池（SOFC）; 催化层; 碳沉积; 阻抗谱; 电化学性能

本文引用格式

吕尧 , 黄波 , 顾习之 , 候春一 , 胡一星 , 王晓颖 , 朱新坚 . 固体氧化物燃料电池Cu-LSCM-CeO₂/LSCM-YSZ/Ni-ScSZ复合阳极制备及性能[J]. 电化学, 2014 , 20(5) : 470 -475 . DOI: 10.13208/j.electrochem.131129

Abstract

Solid oxide fuel cell (SOFC) directly operating on hydrocarbon without external reforming has the potential of greatly speeding up the application of SOFCs for transportation. In this paper, a three-layer structure anode was fabricated by tape casting and screen printing method. The addition of Cu-LSCM-CeO₂ to the supported anode surface presented better performance running on H₂ and ethanol. The maximum power densities were 511 and 390 mW?cm^-2, respectively, running on H₂ and ethanol at 750 °C. No significant degradation was observed on the anode. Consequently, the Cu-LSCM-CeO₂ catalyst layer on the surface of the LSCM-YSZ support layer makes it possible to have good stability for long-term operation in ethanol fuel due to free carbon deposition.

Key words： solid oxide fuel cell; catalyst layer; carbon deposit; impedance spectra; electrochemical performance

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