(Ni0.75Fe0.25-xMgO)/YSZ anode for direct methane solid-oxide fuel cells

被引：12

作者：

Liu, Yan ^{[1
]}

Bai, Yaohui ^{[1
]}

Liu, Jiang ^{[1
,2
,3
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Peoples R China

[2] Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510641, Peoples R China

[3] Guangdong Univ, Dept Educ Guangdong Prov, Key Lab New Energy Technol, Guangzhou 510641, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 23期

基金：

美国国家科学基金会;

关键词：

Solid oxide fuel cells; Ni-based anode; Fe-doped; MgO; Carbon fiber growth; COMBUSTION SYNTHESIS; DIRECT OPERATION; CARBON FORMATION; CERMET ANODES; PERFORMANCE; COMPOSITE; HYDROGEN;

D O I：

10.1016/j.jpowsour.2011.08.023

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：

(Ni0.75Fe0.25-xMgO)/YSZ samples-with a varying weight percentage x (0, 5%. 10%) of MgO with respect to Ni0.75Fe0.25-were prepared and studied as anodes for intermediate temperature solid oxide fuel cells (SOFCs) operated on humidified methane (3% H2O). Among the cells with different anode compositions, it was found that the cell with the (Ni0.75Fe0.25-5%MgO)/YSZ anode showed the highest power density, giving 648 mW cm(-2) at 800 degrees C. The cells with MgO-doped anodes were able to operate stably for 20 h under a current density of 0.53 A cm(-2) at 700 degrees C without observed degradation, while the cells without MgO degraded rapidly. The mechanisms responsible for the superior performance and duration of the (Ni0.75Fe0.25-xMgO)/YSZ anode were analyzed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：9965 / 9969

页数：5

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