Patterned Silver Nanomesh Cathode for Low-Temperature Solid Oxide Fuel Cells
- Title
- Patterned Silver Nanomesh Cathode for Low-Temperature Solid Oxide Fuel Cells
- Author
- 김영범
- Keywords
- ATOMIC LAYER DEPOSITION; HIGH-PERFORMANCE; OXYGEN REDUCTION; REDUCED-TEMPERATURE; THERMAL-STABILITY; SOFCS; ELECTROLYTE; SURFACE; DIFFUSION; OPERATION
- Issue Date
- 2012-03
- Publisher
- Electrochemical SOC INC
- Citation
- Journal of the Electrochemical Society, 2012, 159(5), P.B541-B545
- Abstract
- We have tested 70 nm thick patterned dense silver mesh with close-packed nano-sized holes as catalytic air cathode for low temperature solid oxide fuel cells. The perforated bulk silver nano-mesh structure was fabricated by nanosphere lithography (NSL) technique using the Langmuir-Blodgett trough, and the pore opening size was 500 similar to 600 nm. Fuel cell tests were conducted using nano-mesh silver cathodes on commercial 100 mu m-thick 8% yttria stabilized zirconia electrolytes with sputtered porous platinum anodes. The performance of the cells was measured at temperatures of 475 similar to 550 K by examining the current-voltage curves, maximum power densities, and impedance spectra using electrochemical impedance spectroscopy. We observed that nano-mesh silver cathodes outperformed both nano-mesh platinum and randomly sputtered porous silver, and exhibited improved thermal stability. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.059205jes] All rights reserved.
- URI
- http://jes.ecsdl.org/content/159/5/B541https://repository.hanyang.ac.kr/handle/20.500.11754/69491
- ISSN
- 0013-4651; 1945-7111
- DOI
- 10.1149/2.059205jes
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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