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Dispersive XAFS Study on the Laser-Induced Reduction of a Rh3+ Ion Complex: Presence of a Rh+ Intermediate in Direct Photoreduction
https://repo.qst.go.jp/records/86028
https://repo.qst.go.jp/records/860281a9b04c1-e7af-4889-81c4-b6db51820b11
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-03-11 | |||||
| タイトル | ||||||
| タイトル | Dispersive XAFS Study on the Laser-Induced Reduction of a Rh3+ Ion Complex: Presence of a Rh+ Intermediate in Direct Photoreduction | |||||
| 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 |
Morihisa, Saeki
× Morihisa, Saeki× Daiju, Matsumura× Ryuzo, Nakanishi× Takumi, Yomogida× Takuya, Tsuji× Hiroyuki, Saito× Hironori, Oba× Morihisa, Saeki× Ryuzo, Nakanishi× Hiroyuki, Saito× Hironori, Oba |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The reaction mechanism of the direct photoreduction of a Rh3+ ion complex to a Rh0 species induced by pulsed ultraviolet laser irradiation was studied using dispersive X-ray absorption fine structure (DXAFS) spectroscopy. The time-resolved X-ray absorption near edge structure (XANES) showed the absence of isosbestic points and suggested that more than two Rhn+ species contribute toward the direct photoreduction of Rh3+. Analysis of the time-resolved XANES data by singular value deposition showed that the direct photoreduction involves three Rhn+ species. Multivariate curve resolution by alternating least-squares analysis (MCR-ALS) of the time-resolved XANES data gave pure spectra and concentration profiles of the three Rhn+ species. The Rhn+ species were assigned to Rh3+, Rh+, and Rh0 species based on the features of the pure XANES spectra. The concentration profiles suggested that the direct photoreduction proceeds in the order of Rh3+ → Rh+ → Rh0. A reaction mechanism, which was proposed involving photoreductions of Rh3+ and Rh+, photoinduced autocatalytic reductions of Rh3+ and Rh+, and photooxidation of Rh+, well reproduced the concentration profiles of three Rhn+ species. | |||||
| 書誌情報 |
Journal of Physical Chemistry C 巻 126, p. 5607-5616, 発行日 2022-04 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1932-7447 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1021/acs.jpcc.1c10160 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.1c10160 | |||||
