Improved activity and stability of Ni-Ce0.8Sm0.2O1.9 anode for solid oxide fuel cells fed with methanol through addition of molybdenum

被引：42
作者：
Li, Ping [1 ,2 ]
Yu, Baolong [1 ,2 ]
Li, Jiang [1 ,2 ]
Yao, Xueli [1 ,2 ]
Zhao, Yicheng [1 ,2 ]
Li, Yongdan [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
[2] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2016年 / 320卷
关键词：
Solid oxide fuel cell; Nickel anode; Molybdenum; Methanol; Carbon deposition; Electrochemical performance; ELECTROCHEMICAL PERFORMANCE; CATALYTIC DECOMPOSITION; CARBON DEPOSITION; SOFC; H-2; DEACTIVATION; ELECTROLYTE; RESISTANCE; OPERATION; OXIDATION;
D O I：
10.1016/j.jpowsour.2016.04.100
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：
Ni-Mo-Ce0.8Sm0.2O1.9 (SDC) composites are prepared and investigated as anodes of solid oxide fuel cells with methanol as fuel. The addition of Mo improves the catalytic activity for methanol pyrolysis and the resistance to carbon deposition of Ni-SDC anode. The anode with a mole ratio of Mo to Ni of 0.03:1 exhibits the lowest polarization resistance. The cell with that anode and SDC-carbonate composite electrolyte shows a maximum power density of 680 mW cm(-2) at 700 degrees C. The stability of the cell is enhanced with the increase of the content of Mo in the anode, which is mainly attributed to the decreased amount of carbon deposits with a high graphitization degree. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：251 / 256
页数：6
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