☆ 4.7 Article

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

JOURNAL OF ALLOYS AND COMPOUNDS (2016)

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期刊

JOURNAL OF ALLOYS AND COMPOUNDS
卷 688, 期 -, 页码 939-945

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.07.223

关键词

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

类别

Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

资金

  1. National Science Foundation of China (NSFC) [21276097]
  2. Applied Basic Research Project of Yunnan Province [14051784]
  3. Scientific Research Start-up Fund of Kunming University of Science and Technology of Introducing Talents [KKZ3201652004]

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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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