MEMS-based thin-film solid-oxide fuel cells
- Title
- MEMS-based thin-film solid-oxide fuel cells
- Author
- 김영범
- Keywords
- YTTRIA-STABILIZED ZIRCONIA; ATOMIC LAYER DEPOSITION; DOPED CERIA INTERLAYERS; OXYGEN REDUCTION; BARIUM ZIRCONATE; GRAIN-BOUNDARY; ELECTROLYTE; PERFORMANCE; MEMBRANES; CATHODES
- Issue Date
- 2014-09
- Publisher
- CAMBRIDGE UNIV PRESS, 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
- Citation
- MRS BULLETIN, 2014, 39(9), P.798-804
- Abstract
- Thin-film solid-oxide fuel cells (TF-SOFCs) fabricated using microelectromechanical systems (MEMS) processing techniques not only help lower the cell operating temperature but also provide a convenient platform for studying cathodic losses. Utilizing these platforms, cathode kinetics can be enhanced dramatically by engineering the microstructure of the cathode/electrolyte interface by increasing the surface grain-boundary density. Nanoscale secondary ion mass spectrometry and high-resolution transmission electron microscopy studies have shown that oxygen exchange at electrolyte surface grain boundaries is facilitated by a high population of oxide-ion vacancies segregating preferentially to the grain boundaries. Furthermore, three-dimensional structuring of TF-SOFCs enabled by various lithography methods also helps increase the active surface area and enhance the surface exchange reaction. Although their practical prospects are yet to be verified, MEMS-based TF-SOFC platforms hold the potential to provide high-performance for low-temperature SOFC applications.
- URI
- http://www.cambridge.org/core/journals/mrs-bulletin/article/memsbased-thinfilm-solidoxide-fuel-cells/9DD71ED4F06918A1D0C9D9170348DA4Fhttp://hdl.handle.net/20.500.11754/52592
- ISSN
- 0883-7694; 1938-1425
- DOI
- 10.1557/mrs.2014.171
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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