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  1. H120 物質科学国際研究センター
  2. H120a 雑誌掲載論文
  3. 学術雑誌

Ultrafine Pt–Ni nanoparticles in hollow porous carbon spheres for remarkable oxygen reduction reaction catalysis

http://hdl.handle.net/2237/0002001626
http://hdl.handle.net/2237/0002001626
f312a3a9-efc3-4e99-8743-75e7c447b60f
名前 / ファイル ライセンス アクション
DT_ART_02_2021_000647_Wan-HPCS-no_highlighting.pdf DT_ART_02_2021_000647_Wan-HPCS-no_highlighting.pdf (12.8 MB)
Item type itemtype_ver1(1)
公開日 2021-11-16
タイトル
タイトル Ultrafine Pt–Ni nanoparticles in hollow porous carbon spheres for remarkable oxygen reduction reaction catalysis
言語 en
著者 Wan, Xian-Kai

× Wan, Xian-Kai

en Wan, Xian-Kai

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Samjeské, Gabor

× Samjeské, Gabor

en Samjeské, Gabor

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Matsui, Hirosuke

× Matsui, Hirosuke

en Matsui, Hirosuke

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Chen, Chaoqi

× Chen, Chaoqi

en Chen, Chaoqi

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Muratsugu, Satoshi

× Muratsugu, Satoshi

en Muratsugu, Satoshi

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Tada, Mizuki

× Tada, Mizuki

en Tada, Mizuki

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述 Ultrafine bimetallic Pt–Ni nanoparticles, which catalyze the oxygen reduction reaction (ORR) efficiently, were successfully prepared in hollow porous carbon spheres (HPCSs) under the assistance of organic molecules. 2,2′-Dipyridylamine (dpa) was found to be most effective in preparing homogeneous small Pt–Ni nanoparticles (2.0 ± 0.4 nm) without the phase separation of Pt and Ni during synthesis, and the assistance of the organic molecules was investigated for the alloy nanoparticle formation. The Pt–Ni nanoparticle/HPCS catalyst synthesized in the presence of dpa exhibited remarkable electrochemical performance in the ORR showing a high mass activity of 3.25 ± 0.14 A mg^−1Pt at 0.9 VRHE (13.5-fold higher relative to a commercial Pt/C catalyst), a large electrochemical surface area of 105 ± 8 m^2 g^−1 Pt, and high durability. After 60 000 cycles of accelerated durability testing, the mass activity was still 12.3 times higher than that of the commercial Pt/C catalyst.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Royal Society of Chemistry
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1039/D1DT00647A
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 1477-9226
書誌情報 en : Dalton Transactions

巻 50, 号 20, p. 6811-6822, 発行日 2021-05-28
ファイル公開日
日付 2022-05-28
日付タイプ Available
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