Performances of Cathode Catalyst Layer with Carbon-Alloy Nanofiber in Different Length for Polymer Electrolyte Fuel Cells
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- Ishitobi Hirokazu
- Division of Environmental Engineering Science, Gunma University Department of Chemical and Environmental Engineering, Gunma University
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- Ida Ayaka
- Department of Chemical and Environmental Engineering, Gunma University
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- Anayama Shuhei
- Division of Environmental Engineering Science, Gunma University
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- Nakagawa Nobuyoshi
- Division of Environmental Engineering Science, Gunma University Department of Chemical and Environmental Engineering, Gunma University
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<p>The optimization of catalyst layer activity is essential for PEFCs to improve their performance. In this study, the relation between the structure of the nanofiber catalyst layer and catalyst layer activity, which includes reactivity and diffusivity, was examined. Carbon-alloy nanofiber, which is alloyed with nitrogen atoms and Pt free catalyst for oxygen reduction reaction, was used for the cathode catalyst. Four catalyst layers of nanofiber catalyst in different lengths from 0.80 to 6.4 µm were prepared and their performances in a half cell and membrane electrode assembly (MEA) were evaluated. The bulky catalyst layer with an increased pore volume at the large secondary pore size larger than 2 µm was formed with the longer catalyst. The MEA with the longer catalyst showed a higher performance. The bulky catalyst layer by using the longer catalyst can provide a higher utilization of the active sites and also promote mass transport.</p>
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 49 (12), 995-1001, 2016
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204568289024
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- NII論文ID
- 130005251313
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- NII書誌ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 027808563
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
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- KAKEN
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- 抄録ライセンスフラグ
- 使用不可