Nanofiber-based La0.4Sr0.6TiO3-Gd0.2Ce0.8O1.9-Ni composite anode for solid oxide fuel cells

被引：26
作者：
Hu, Qianjun [1 ]
Liu, Chaojun [1 ]
Fan, Liquan [2 ]
Wang, Yuwei [2 ]
Xiong, Yueping [1 ]
机构：
[1] Harbin Inst Technol, Sch Chem Engn & Technol, 92 West Dazhi St, Harbin 150001, Heilongjiang, Peoples R China
[2] Qiqihar Univ, Coll Mat Sci & Engn, 42 Wenhua St, Qiqihar 161006, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2018年 / 265卷
基金：
中国国家自然科学基金;
关键词：
La0.4Sr0.6TiO3; Gd0.2Ce0.8O1.9; Ni; Stability; Carbon depositions; DOPED SRTIO3; SOFC; PERFORMANCE; STABILITY; REDOX; INFILTRATION; TEMPERATURE; SCAFFOLDS; OXIDATION; SUPPORT;
D O I：
10.1016/j.electacta.2018.01.144
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
La0.4Sr0.6TiO3 (LST) nanofibers are prepared by electrospinning method, the LST nanofiber scaffolds are sintered on YSZ (8 mol% Y2O3-92 mol% ZrO2) electrolyte flakes, and Gd0.2Ce0.8O1.9 (GDC) and Ni infiltrate into La0.4Sr0.6TiO3 nanofiber scaffolds. In this paper, the nanofiber-based LST-GDC-Ni composite anodes are tested in H-2 or CH4 fuel gas, respectively, and show excellent thermal and redox cycling stability. Carbon deposition appears on the surface of nanofiber-based LST-GDC-Ni composite anodes after being fed with CH4 fuel gas for 100 h. The amount of carbon deposition is proportional to the mass ratio of Ni:LST. A small amount of carbon deposition boosts the electrochemical performance, however, a large amount of carbon deposition is the opposite. The optimal mass ratio of LST:GDC:Ni has been found to be 1:1:0.4. (c) 2018 Elsevier Ltd. All rights reserved.
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页码：1 / 9
页数：9
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