Characterization of symmetrical SrFe0.75Mo0.25O3-δ electrodes in direct carbon solid oxide fuel cells

JOURNAL OF ALLOYS AND COMPOUNDS

卷:688

Article

Xiao, Jie^1,2,3  Han, Da⁴  Yu, Fangyong³  Zhang, Li^2,3  Liu, Jiang^2,3  Zhan, Zhongliang⁴  Zhang, Yingjie¹  Dong, Peng¹ 

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Engn Lab Adv Battery & Mat Yunnan Prov, Kunming 650093, Peoples R China

[2] South China Univ Technol, Sch Chem & Chem Engn, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China

[3] South China Univ Technol, Sch Environm & Energy, New Energy Res Inst, Guangzhou 510006, Guangdong, Peoples R China

[4] Chinese Acad Sci SICCAS, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, 1295 Dingxi Rd, Shanghai 200050, Peoples R China

关键词: Solid oxide fuel cells;    Symmetrical electrodes;    Direct carbon;    Molybdenum doped strontium ferrite;    Strontium- and magnesium-doped;    lanthanum gallate;   

DOI  :  10.1016/j.jallcom.2016.07.223

来源: Elsevier

【 摘 要 】

Symmetrical solid oxide fuel cells (SOFCs) that feature nanostructured SrFe0.75Mo0.25O3-delta (SFMO) electrodes which are impregnated into porous La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) skeletons by solution infiltration technique are prepared. The symmetrical SOFCs are investigated in detail by operating with 5 wt% Fe-loaded activated carbon as fuel and ambient air as oxidant. A typical single cell can give a maximum power density of 405 mW cm(-2) at 850 degrees C, which is comparable to the results with Ni-based anode-supported SOFCs. Also, the direct carbon SOFC (DC-SOFC) with reloaded fuel can recover to its initial performance. The microstructures and XRD of the electrodes after test are also examined and analysed. The results show that the SFMO-LSGM composite anode remains porous and maintains its structure stability, implying that the symmetrical SFMO electrodes can be applied into DC-SOFCs. (C) 2016 Elsevier B.V. All rights reserved.

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