Molybdenum substitution at the B-site of lanthanum strontium titanate anodes for solid oxide fuel cells

被引：27

作者：

Li, Jiang ^{[1
,2
]}

Lu, Tianmu ^{[1
,2
]}

Hou, Nianjun ^{[1
,2
]}

Li, Ping ^{[1
,2
]}

Yao, Xueli ^{[1
,2
]}

Fan, Lijun ^{[1
,2
]}

Gan, Tian ^{[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：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 34期

关键词：

Anode; Lanthanum strontium titanate; Solid oxide fuel cell; Molybdenum doping; Catalytic activity; SULFUR-TOLERANT ANODE; DOPED SRTIO3; CATALYTIC-ACTIVITY; HIGH-TEMPERATURE; CO OXIDATION; PEROVSKITE; REDOX; LA; ELECTRONEGATIVITY; PERFORMANCE;

D O I：

10.1016/j.ijhydene.2017.03.189

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 effects of Mo doping into the B-site of La0.3Sr0.7TiO3-delta perovskite on its ionic conductivity and catalytic activity as an anode material of solid oxide fuel cells have been investigated. The partial substitution of Ti by Mo reduces the bond energy between metal and oxygen ions in the perovskite. The concentration of Mo5+/Mo5(6+) redox couples increases with the rise of the content of Mo, while the oxygen ionic conductivity decreases simultaneously. The doping of Mo significantly reduces the anodic polarization resistance and improves the performance of the single cell. The cell with La0.3Sr0.7Ti0.97Mo0.03O3-delta anode and La0.3Sr0.7Ti0.97Mo0.03O3-delta electrolyte exhibits a maximum power density of 135 mW cm(-2) at 850 degrees C with hydrogen as fuel. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：22294 / 22301

页数：8

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