| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-11-28 |
| タイトル |
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タイトル |
Pt Nanoparticle-Nanowire Hybrids Supported on Single-walled Carbon Nanotubes for Enhanced Oxygen Reduction Reaction in Polymer Electrolyte Fuel Cells |
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言語 |
en |
| 著者 |
Chen, Qiao
Yu, Chu-Yang
Watanabe, Takashi
Kawasumi, Masaya
Huda, Miftakhul
Matsuo, Yutaka
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| アクセス権 |
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アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Enhancing catalyst durability is crucial for the advancement of Polymer Electrolyte Fuel Cells (PEFCs). In this study, a hybrid catalyst composed of Pt nanoparticles and nanowires supported on single-walled carbon nanotubes (PtNP+NW/SWCNT) is investigated. This unique nanostructure synergistically combines the high activity of nanoparticles with the enhanced electron transport and structural stability offered by one-dimensional nanowires and SWCNTs. PtNP+NW/SWCNT demonstrated excellent electrochemical performance, with a half-wave potential of 0.882 V, a mass activity of 380 A gPt−1, and a specific activity of 935 μA cm−2, owing to its one-dimensional nanowire structure that promotes active site exposure and electron transport. The catalyst also showed superior intrinsic activity and remarkable durability. Accelerated degradation tests revealed only a 22.1% decrease in maximum power density and a minimal 14.9% loss in electrochemical surface area (ECSA) after 60 000 cycles, outperforming both Pt nanoparticles coated with N-doped carbon on SWCNTs (Pt@NC/SWCNT) and commercial Pt/C catalysts. While Pt@NC/SWCNT exhibits better resistance to acid poisoning in half-cell tests due to its N-doped carbon shell, PtNP+NW/SWCNT is more durable under realistic operating conditions. These results highlight the importance of structural stability in long-term fuel cell operation and suggest that PtNP+NW/SWCNT is a promising candidate for practical PEFC applications. |
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言語 |
en |
| 出版者 |
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出版者 |
Royal Society of Chemistry |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1039/D5NR02497H |
| 収録物識別子 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2040-3372 |
| 書誌情報 |
en : Nanoscale
巻 17,
号 42,
p. 24503-24512,
発行日 2025-11-14
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| ファイル公開日 |
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|
日付 |
2026-11-14 |
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日付タイプ |
Available |
Accepted_version.pdf (1.2 MB)
