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Electrochemical Adsorption on Pt Nanoparticles in Alkaline Solution Observed Using In Situ High Energy Resolution X-ray Absorption Spectroscopy
https://repo.qst.go.jp/records/75664
https://repo.qst.go.jp/records/75664629f9d7c-aafe-47db-8f6c-f4bfa4606455
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-01-16 | |||||
タイトル | ||||||
タイトル | Electrochemical Adsorption on Pt Nanoparticles in Alkaline Solution Observed Using In Situ High Energy Resolution X-ray Absorption Spectroscopy | |||||
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 |
Kusano, Shogo
× Kusano, Shogo× Matsumura, Daiju× Ishii, Kenji× Tanaka, Hiroshi× Jun'ichiro, Mizuki× Ishii, Kenji× Mizuki, Junichiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The oxygen reduction reaction (ORR) on Pt/C in alkaline solution was studied by in situ high energy resolution X-ray absorption spectroscopy. To discuss the X-ray absorption near-edge structure (XANES), this paper introduced the rate of change of the ∆μ (RCD), which is an analysis method that is sensitive to surface adsorption. The surface adsorptions as hydrogen (below 0.34 V), superoxide anion (from 0.34 V to 0.74 V), hydroxyl species (from 0.44 V to 0.74 V), atomic oxygen (above 0.74 V), and α-PtO2 (above 0.94 V) were distinguished. It is clarified that the catalytic activity in an alkaline solution is enhanced by the stability of atomic oxygen and the low stability of superoxide anion/peroxide adsorption on the platinum surface. | |||||
書誌情報 |
Nanomaterials 巻 9, 号 4, p. 642, 発行日 2019-04 |
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出版者 | ||||||
出版者 | MDPI | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2079-4991 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/nano9040642 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.mdpi.com/2079-4991/9/4/642 |