2013 Fiscal Year Final Research Report
Analysis of transport phenomena in nano/micro porous electrodes for polymer electrolyte fuel cells by high-resolution in situ approaches.
| Project/Area Number |
22686022
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Thermal engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TSUSHIMA Shohji 東京工業大学, 理工学研究科, 准教授 (30323794)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 燃料電池 / 物質輸送 / ナノ・マイクロ構造 / 多孔質 / 可視化 |
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| Research Abstract |
Investigations on nano/micro porous electrode (catalyst layer) in polymer electrolyte fuel cells were conducted to clarify fabrication process and mass transfer in the electrodes. In situ and cross-sectional visualizations revealed that nano/micro structures of porous electrodes were intensively affected by ratio of ingredients applied to the fabrication process of the electrode. Influences of applying pressure by decal method and relative humidity under drying condition were also examined with fundamental mechanism for generations of micro cracks in the electrode considered. It was shown that transport phenomena on chemical species, ions and electrons in the porous electrode played a dominant role for high performance fuel cell, suggesting further improvements on design and control of the nano/micro porous electrode to enhance transport process in fuel cells.
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