Investigation of the Effect of Pt Location in Catalyst Layer on Fuel Cell Performance Using Pt-photodeposited Polyaniline-Nafion Composite Film
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- NAKANO Hiroyuki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Univeristy
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- TACHIBANA Yasuhiro
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Univeristy
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- KUWABATA Susumu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Univeristy
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説明
<p>Photodeposition of platinum metal on one face of a polyaniline-Nafion composite membrane has been made in aqueous solution containing chloroplatinate and ascorbic acid as a hole scavenger to prepare a catalyst layer for O2 electrode in a polymer electrolyte fuel cell. Fluorescent X-ray analysis of the Pt -deposited composite has revealed gradation of Pt amount is built in direction of membrane thickness by choosing conditions of membrane preparation and irradiation. Two types of membrane-electrode assemblies are fabricated using the Pt-deposited composite membrane; the Pt-deposited face is attached to polyelectrolyte of Nafion membrane or an O2 gas electrode. The former fuel cell exhibits higher performance than the latter one, indicating that diffusibility of H+ in the catalyst layer tends to determine the cell performance. Changes in the cell performance caused by changing Pt amount allow to confirm that Pt amount is certainly gradated in the composite membrane.</p>
収録刊行物
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- Electrochemistry
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Electrochemistry 73 (12), 1021-1025, 2005-12-05
公益社団法人 電気化学会
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詳細情報 詳細情報について
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- CRID
- 1390282763120403584
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- NII論文ID
- 10016515071
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- NII書誌ID
- AN00151637
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- ISSN
- 21862451
- 13443542
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- NDL書誌ID
- 7756092
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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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- 抄録ライセンスフラグ
- 使用可