Low Temperature Solid Oxide Fuel Cells Using LaGaO3-based Oxide Electrolyte on Metal Support

被引：10

作者：

Ishihara, Tatsumi ^{[1
]}

机构：

[1] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Dept Appl Chem, Fac Engn,Nishi Ku, Fukuoka 8190395, Japan

来源：

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE | 2015年 / 58卷 / 02期

关键词：

Low temperature SOFC; Lanthanum gallate; Thin film; Nickel-iron porous metal; Oxide anode; Direct hydrocarbon SOFC; ION CONDUCTOR; DOPED LAGAO3; DIFFUSION; MAGNESIUM; STRONTIUM; ANODES; SR;

D O I：

10.1627/jpi.58.71

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Solid oxide fuel cells (SOFCs) can directly convert the chemical energy of various fuels to electric power with unmatched energy conversion efficiency. The oxide ion conductivity of LaGaO3 doped with Sr and Mg (LSGM) is introduced and application of LSGM to low temperature SOFCs is explained. Power density at lower temperature was dramatically increased by application of LSGM film manufactured with laser ablation techniques. By application of a suitable buffer layer, the cell using LSGM thin film electrolyte had reasonable power density (0.2W cm(-2)) at 773 K. Ce0.6Mn0.3Fe0.1O2(CMF) oxide had high activity for the anodic reaction and insertion of a CMF layer much improved the maximum power density (0.17W cm(-2) at 673 K). Oxide anode consisting of Ce06Mn0.3Fe0.1O2(CMF)-La0.6Sr0.4Fe0.9Mn0.1O3 (LSFM) (= 12.5 : 87.5 wt%) enabled the use of dry hydrocarbon for fuel with almost no coke deposition.

引用

页码：71 / 78

页数：8

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