| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-09-19 |
| タイトル |
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|
タイトル |
Composition control of alloy nanoparticles consisting of bulk-immiscible Au and Rh metalsviaan ionic liquid/metal sputtering technique for improving their electrocatalytic activity |
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言語 |
en |
| 著者 |
Akiyoshi, Kazutaka
Watanabe, Yumezo
Kameyama, Tatsuya
Kawawaki, Tokuhisa
Negishi, Yuichi
Kuwabata, Susumu
Torimoto, Tsukasa
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
AuRh bimetallic alloy nanoparticles (NPs) were successfully prepared by simultaneous sputtering of Au and Rh in a room-temperature ionic liquid (RTIL) of N,N-diethyl-N-methyl-N-(2-methoxyethyl) ammonium tetrafluoroborate (DEME-BF4). Bimetallic AuRh alloy NPs of 1–2 nm in size were formed in the RTIL. The alloy composition was controllable by changing the surface areas of Au and Rh plates used as sputtering targets. Loading thus-obtained AuRh NPs on carbon black (CB) powders increased the size of AuRh NPs to ca. 2–8 nm, depending on the Au/Rh ratio. The electrocatalytic activity for oxygen reduction reaction (ORR) of AuRh NP-loaded CB catalysts showed a volcano-type dependence on their composition, in which AuRh NPs with Au surface coverage of 62% exhibited the optimal ORR activity, the specific activity being ca. 5 times higher than that of pure Rh NPs. |
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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/D2CP01461K |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1463-9076 |
| 書誌情報 |
en : Physical Chemistry Chemical Physics
巻 24,
号 39,
p. 24335-24344,
発行日 2022-10-21
|
20220927-28_AuRh_YWT_KAK_PCCP_Main.pdf (1.4 MB)
