MEMS-based thin-film solid-oxide fuel cells
- Authors
- An, Jihwan; Shim, Joon Hyung; Kim, Young-Beom; Park, Joong Sun; Lee, Wonyoung; Guer, Turgut M.; Prinz, Fritz B.
- Issue Date
- 9월-2014
- Publisher
- CAMBRIDGE UNIV PRESS
- Keywords
- atomic layer deposition; energy generation; Grain boundaries; nanostructure; secondary ion mass spectroscopy (SIMS); transmission electron microscopy (TEM)
- Citation
- MRS BULLETIN, v.39, no.9, pp.798 - 804
- Indexed
- SCIE
SCOPUS
- Journal Title
- MRS BULLETIN
- Volume
- 39
- Number
- 9
- Start Page
- 798
- End Page
- 804
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/97528
- DOI
- 10.1557/mrs.2014.171
- ISSN
- 0883-7694
- 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.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.