WEKO3
-
RootNode
アイテム
Electronic Structure of Pt and Pt-Co Nanoparticles with O2 and O2/H2O Adsorption Revealed by In Situ XAFS and Hard X-ray Photoelectron Spectroscopy
https://repo.qst.go.jp/records/47984
https://repo.qst.go.jp/records/47984bf21cda4-e4f7-49fe-9572-b0348d036e4a
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2017-05-23 | |||||
タイトル | ||||||
タイトル | Electronic Structure of Pt and Pt-Co Nanoparticles with O2 and O2/H2O Adsorption Revealed by In Situ XAFS and Hard X-ray Photoelectron 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 |
Cui, Yitao
× Cui, Yitao× Harada, Yoshihisa× Hatanaka, Tatsuya× Nakamura, Naoki× Ando, Masaki× Yoshida, Toshihiko× Ikenaga, Eiji× Ishii, Kenji× Matsumura, Daiju× Li, Rui× Oshima, Masaharu× 石井 賢司 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The electronic structures of Pt and Pt-Co nanoparticles with O2 adsorption and O2/H2O co-adsorption were investigated by in situ hard X-ray photoelectron spectroscopy (HAXPES) and in situ high resolution fluorescence detection X-ray absorption spectroscopy (HERFD-XAS) to clarify the effects of water adsorption on fuel cell cathode catalysis surface. The experimental results suggest that under the pressure of 1 mbar, the adsorption of H2O hinders the successive O2 adsorption on Pt surface, while under the pressure of 1 bar, the adsorption of H2O enhances the adsorption of O2 on Pt surface. This water effect is found to be more significant on Pt surface than on Pt-Co surface. These results would be helpful to understand how the water affects the fuel cell performance and why Pt-Co nanoparticles show higher oxygen reduce reaction (ORR) activity than Pt nanoparticles. | |||||
書誌情報 |
ECS Transactions 巻 72, 号 8, p. 131-136, 発行日 2016-10 |
|||||
出版者 | ||||||
出版者 | The Electrochemical Society | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1149/07208.0131ecst | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://ecst.ecsdl.org/content/72/8/131 | |||||
関連名称 | http://ecst.ecsdl.org/content/72/8/131 |
Share
Cite as
Cui, Yitao, Harada, Yoshihisa, Hatanaka, Tatsuya, Nakamura, Naoki, Ando, Masaki, Yoshida, Toshihiko, Ikenaga, Eiji, Ishii, Kenji, Matsumura, Daiju, Li, Rui, Oshima, Masaharu, 石井 賢司, 2016, Electronic Structure of Pt and Pt-Co Nanoparticles with O2 and O2/H2O Adsorption Revealed by In Situ XAFS and Hard X-ray Photoelectron Spectroscopy: The Electrochemical Society, 131–136 p.
Loading...