Metastable Structure of Photoexcited WO3 Determined by the Pump-probe Extended X-ray Absorption Fine Structure Spectroscopy and Constrained Thorough Search Analysis

Kido, Daiki; Uemura, Yohei; Wakisaka, Yuki et al.

Chemistry Letters, 2022, 51(11), 1083-1086

Permalink : https://hdl.handle.net/2115/90216

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アクセス権
open access
URI
https://hdl.handle.net/2115/90216
タイトル
Metastable Structure of Photoexcited WO3 Determined by the Pump-probe Extended X-ray Absorption Fine Structure Spectroscopy and Constrained Thorough Search Analysis
著者
Kido, Daiki ; Uemura, Yohei ; Wakisaka, Yuki ; Koide, Akihiro ; Uehara, Hiromitsu ; Niwa, Yasuhiro ; Nozawa, Shunsuke ; Ichiyanagi, Kohei ; Fukaya, Ryo ; Adachi, Shin-ichi ; Sato, Tokushi ; Jenkins, Harry ; Yokoyama, Toshihiko ; Takakusagi, Satoru ; Hasegawa, Jun-ya ; Asakura, Kiyotaka
著者名
Kido, Daiki
著者名
Uemura, Yohei
著者名
Wakisaka, Yuki
著者名
Koide, Akihiro
著者名
Uehara, Hiromitsu
著者名
Niwa, Yasuhiro
著者名
Nozawa, Shunsuke
著者名
Ichiyanagi, Kohei
著者名
Fukaya, Ryo
著者名
Adachi, Shin-ichi
著者名
Sato, Tokushi
著者名
Jenkins, Harry
著者名
Yokoyama, Toshihiko
著者名
Takakusagi, Satoru
著者名
Hasegawa, Jun-ya
e-Rad_Researcher
60175164
著者名
Asakura, Kiyotaka
言語
英語
キーワード
Photocatalyst
Pump-probe EXAFS
Thorough search method
発行日
2022-11
出版者
The Chemical Society of Japan
収録物名
Chemistry Letters
巻(号)
51(11)
ページ
1083-1086
抄録
The local structure of WO3 photocatalyst in the photoexcited metastable state created 150 ps after laser irradiation have been determined by the pump-probe L3-edge EXAFS and the constrained thorough search analysis. A highly distorted octahedral local structure was found where one of the shortest W-O bonds was further shortened to 1.66 Å while the other five bonds were rather elongated even though theoretical calculations predicted the reverse change. We discuss this contradiction and propose a possible structure for the metastable state.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0366-7022
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1246/cl.220381