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Nano-granulization of gadolinia-doped ceria electrolyte surface by aerosol-assisted chemical vapor deposition for low-temperature solid oxide fuel cells
- Issue Date
- 1-1월-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Solid oxide fuel cells; Aerosol-assisted chemical vapor deposition; Gadolinia-doped ceria; Surface modification; Grain boundaries; Ceramic thin films
- Citation
- JOURNAL OF POWER SOURCES, v.301, pp.72 - 77
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 301
- Start Page
- 72
- End Page
- 77
- ISSN
- 0378-7753
- Abstract
- We have fabricated nano-scale gadolinia-doped ceria (GDC) at the electrode-electrolyte boundary by aerosol-assisted chemical vapor deposition (AACVD) for high-performance solid oxide fuel cells (SOFCs) working at low temperatures below 500 degrees C. In AACVD, temperature is the key factor affecting the grain size. We have confirmed that by nano-granulizing the electrolyte surface using optimized AACVD, the power output of the SOFC is 50% higher than that of the bare GDC SOFC. From the impedance analysis, significant enhancement of the cathodic oxygen reduction reaction is identified from the AACVD-GDC nano-grain surface treatment. (C) 2015 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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