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Plasma-Devised Pt/C Model Electrodes for Understanding the Doubly Beneficial Roles of a Nanoneedle-Carbon Morphology and Strong Pt-Carbon Interface in the Oxygen Reduction Reaction
https://uec.repo.nii.ac.jp/records/10077
https://uec.repo.nii.ac.jp/records/1007760630341-a883-4dd1-86cd-ad8d43d937ac
名前 / ファイル | ライセンス | アクション |
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ACS Appl. Energy Mater_Ms rev2_Y.Iwasawa (re-submitted).pdf (793.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-10-20 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Plasma-Devised Pt/C Model Electrodes for Understanding the Doubly Beneficial Roles of a Nanoneedle-Carbon Morphology and Strong Pt-Carbon Interface in the Oxygen Reduction Reaction | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題 | nanoneedle-carbon morphology effect | |||||
キーワード | ||||||
言語 | en | |||||
主題 | plasma-fabricated strong | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Pt-carbon interface | |||||
キーワード | ||||||
言語 | en | |||||
主題 | devised Pt/C model electrode | |||||
キーワード | ||||||
言語 | en | |||||
主題 | oxygen reduction reaction | |||||
キーワード | ||||||
言語 | en | |||||
主題 | electrocatalytic activity and durability | |||||
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 | |||||
著者 |
Zhao, Xiao
× Zhao, Xiao× Hamamura, Yutaka× Yoshida, Yusuke× Kaneko, Takuma× Gunji, Takao× Takao, Shinobu× Higashi, Kotaro× Uruga, Tomoya× Iwasawa, Yasuhiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The doubly beneficial contribution of a nanoscale fabricated carbon surface and devised strong Pt-carbon interface to remarkable improvements of Pt/carbon fuel cell electrodes was evidenced to be a crucial clue for rational design of next-generation less-Pt/C electrodes. Real-world carbon surface morphology and metal-carbon interfaces are complex and interrelated and hard to control at a statistical level. Herein, we fabricated plasma-devised nanoneedles-glassy carbon (GC) from well-defined flat GC as model supports, on which Pt nanoparticles were anchored by arc plasma. The arc plasma deposited (APD)-Pt/flat-GC with a strong metal-support interface exhibited enhanced activity for the electrochemical oxygen reduction reaction (ORR) compared to chemically supported Pt/flat-GC and commercial Pt/C electrodes. The APD-Pt/nanoneedles-GC further promoted the ORR and showed a remarkable durability without significant deactivation after accelerated durability test cycles. The structural defects and compressive strain of Pt nanoparticles were induced by the plasma-devised metal-support contact, which may benefit the ORR activity of APD-Pt/nanoneedles-GC. The nanoneedles-GC support morphology may also improve oxygen gas transport at the nanoscale through modifying the hydrophobicity/hydrophilicity of the GC surface. These results on the devised Pt/C model electrodes reveal the highly enhanced activity and durability of the APD-Pt/nanoneedles-GC electrode by the doubly beneficial effects of a support nanoscale morphology and strong metal-support interface, which were characterized by the intimate combination of Pt/GC synthesis, electrochemical measurements, in situ XAFS, and HAADF-STEM. Our experimental findings provide necessary clues for the design and synthesis of active and durable fuel cell electrodes, metal-air batteries, and catalytic materials. | |||||
書誌情報 |
en : ACS Applied Energy Materials 巻 3, 号 6, p. 5542-5551, 発行日 2020-06-22 |
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出版者 | ||||||
出版者 | American Chemical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 25740962 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1021/acsaem.0c00528 | |||||
権利 | ||||||
権利情報 | (c) 2020 American Chemical Society | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1021/acsaem.0c00528 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |