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Activity enhancement of platinum oxygen-reduction electrocatalysts using ion-beam induced defects
https://repo.qst.go.jp/records/85762
https://repo.qst.go.jp/records/85762a385431b-5b1f-4229-877b-91d469bf6c1a
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-03-22 | |||||
| タイトル | ||||||
| タイトル | Activity enhancement of platinum oxygen-reduction electrocatalysts using ion-beam induced defects | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tetsuya, Kimata
× Tetsuya, Kimata× Kenta, Kakitani× Shunya, Yamamoto× Iwao, Shimoyama× Daiju, Matsumura× Akihiro, Iwase× Wei, Mao× Tomohiro, Kobayashi× Tetsuya, Yamaki× Takayuki, Terai× Tetsuya, Kimata× Kenta, Kakitani× Shunya, Yamamoto× Daijyu, Matsumura× Akihiro, Iwase× Kobayashi, Tomohiro× Tetsuya, Yamaki× Terai, Takayuki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | High activity is one of the primary requirements for the catalysts in proton exchange membrane fuel cell applications. Platinum (Pt) is the best known catalyst, especially for oxygen reduction at the cathode; however, further activity improvements are still required. Previous computational studies suggested that the catalytic activity of Pt nanoparticles could be enhanced by a Pt-carbon (C) support interaction. We have recently found that an enhanced electronic interaction occurs at the interface between an argon-ion (Ar+)-irradiated glassy carbon (GC) surface and Pt nanoparticles. Here, we report a more than twofold increase in specific activity for the Pt nanoparticles on the Ar+-irradiated GC substrate compared to that on the nonirradiated GC substrate. The mechanism of this activity enhancement was investigated by local structure analysis of the interface. Ar+ irradiation of the carbon support led to the formation of Pt-C bonding, thus protecting the deposited Pt nanoparticles from oxidation. | |||||
| 書誌情報 |
Physical Review Materials 巻 6, p. 035801, 発行日 2022-03 |
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| 出版者 | ||||||
| 出版者 | The American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2475-9953 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevMaterials.00.005800 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.6.035801 | |||||
