Journal
JOURNAL OF POWER SOURCES
Volume 192, Issue 2, Pages 552-555Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.03.019
Keywords
Tubular solid oxide fuel cell; Cathode-supported; Dip-coating; Co-sintering; Scandia-stabilized zirconia
Funding
- Chinese Government High Tech Developing Project [2007AA05Z151]
- Postdoctoral Foundation of China
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A cathode-supported tubular solid oxide fuel cell (CTSOFC) with the length of 6.0 cm and outside diameter of 1.0 cm has been successfully fabricated via dip-coating and co-sintering techniques. A crack-free electrolyte film with a thickness of similar to 14 mu m was obtained by co-firing of cathode/cathode active layer/electrolyte/anode at 1250 degrees C. The relative low densifying temperature for electrolyte was attributed to the large shrinkage of the green tubular which assisted the densification of electrolyte. The assembled cell was electrochemically characterized with humidified H-2 as fuel and O-2 as oxidant. The open circuit voltages (OCV) were 1.1, 1.08 and 1.06V at 750, 800 and 850 degrees C, respectively, with the maximum power densities of 157, 272 and 358 mW cm(-2) at corresponding temperatures. (C) 2009 Elsevier B.V. All rights reserved.
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