書誌事項
- タイトル別名
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- S053011 Molecular Dynamics Study of Oxygen Diffusion in the Ionomer of PEFC catalyst layer
抄録
In the Polymer electrolyte membrane fuel cell (PEFC) cathode catalyst layer, the structure of ionomer with which the catalyst is covered is very important on the point of transferring protons to the catalytic surface and oxygen permeation to the surface. But the mechanism of oxygen permeation through an ionomer was not analyzed in detail because it is too small to research by experiment. Moreover molecular dynamics simulation of the catalyst layer and oxygen permeability has not yet researched. In this research, we constructed the system including PFSA membrane, water, oxonium ion and platinum layers by using molecular dynamics study and researched about the effect of the water content of the ionomer on the structure of the ionomer and the permeability of the oxygen molecule. As the result, we found that PFSA and water molecule gathered on the platinum catalyst surface, the oxygen permeability decreased as water content rate increased in the ionomer.
収録刊行物
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- 年次大会
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年次大会 2011 (0), _S053011-1-_S053011-4, 2011
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001205839742080
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- NII論文ID
- 110009759889
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- ISSN
- 24242667
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可