Functionally Graded Bismuth Oxide/Zirconia Bilayer Electrolytes for High-Performance Intermediate-Temperature Solid Oxide Fuel Cells (IT-SOFCs)

A functionally graded Bi1.6Er0.4O3 (ESB)/Y0.16Zr0.84O1.92 (YSZ) bilayer electrolyte is successfully developed via a cost-effective screen printing process using nanoscale ESB powders on the tape-cast NiO-YSZ anode support. Because of the highly enhanced oxygen incorporation process at the cathode/el...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2017-03, Vol.9 (10), p.8443-8449
Main Authors: Joh, Dong Woo, Park, Jeong Hwa, Kim, Doyeub, Wachsman, Eric D, Lee, Kang Taek
Format: Article
Language:English
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Summary:A functionally graded Bi1.6Er0.4O3 (ESB)/Y0.16Zr0.84O1.92 (YSZ) bilayer electrolyte is successfully developed via a cost-effective screen printing process using nanoscale ESB powders on the tape-cast NiO-YSZ anode support. Because of the highly enhanced oxygen incorporation process at the cathode/electrolyte interface, a novel bilayer solid oxide fuel cell (SOFC) yields extremely high power density of ∼2.1 W cm–2 at 700 °C, which is a 2.4 times increase compared to that of the YSZ single electrolyte SOFC.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.6b16660