Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 363, Issue 1-2, Pages 250-255Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2010.07.044
Keywords
NiO-YSZ anode support; Microstructure; Phase-inversion method; Non-solvent; SOFC
Categories
Funding
- National Science Foundation [CMMI 1000068]
- DoE Office of Basic Energy Sciences [DE-SC0001061]
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NiO-YSZ anode supports with different microstructures have been successfully prepared through a phase-inversion method. The effect of non-solvent, precipitation time and polyethersulfone (PESf) concentration on the microstructure development of NiO-YSZ anode support has been investigated. The scanning electron microscopy (SEM) results of NiO-YSZ anode support show that four types of microstructures have been achieved using different non-solvent. The difference in solubility parameters between solvent and non-solvent can greatly influence the microstructure. Further, it is observed that the precipitation time will affect the formation of macro-voids in the anode support, and higher PESf concentration in the slurry will suppress the formation of macro-voids. In addition, planar NiO-YSZ anode-supported solid oxide fuel cells with four types of anode microstructures have been fabricated and tested. The correlation between the electrochemical performance of all the prepared anode materials and microstructure of these cells has been discussed. (C) 2010 Elsevier B.V. All rights reserved.
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