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Development of Surface Fluorescence X‐Ray Absorption Fine Structure Spectroscopy Using a Laue‐Type Monochromator

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Title: Development of Surface Fluorescence X‐Ray Absorption Fine Structure Spectroscopy Using a Laue‐Type Monochromator
Authors: Wakisaka, Yuki Browse this author
Kido, Daiki Browse this author
Uehara, Hiromitsu Browse this author
Yuan, Qiuyi Browse this author
Feiten, Felix E. Browse this author
Mukai, Shingo Browse this author
Takakusagi, Satoru Browse this author →KAKEN DB
Uemura, Yohei Browse this author
Yokoyama, Toshihiko Browse this author
Wada, Takahiro Browse this author
Uo, Motohiro Browse this author
Sekizawa, Oki Browse this author
Uruga, Tomoya Browse this author
Iwasawa, Yasuhiro Browse this author
Asakura, Kiyotaka Browse this author →KAKEN DB
Issue Date: Jul-2019
Publisher: Wiley
Journal Title: The Chemical Record
Volume: 19
Issue: 7
Start Page: 1157
End Page: 1165
Publisher DOI: 10.1002/tcr.201800020
Abstract: Surface fluorescence X‐ray absorption fine structure (XAFS) spectroscopy using a Laue‐type monochromator has been developed to acquire structural information about metals with a very low concentrate on a flat highly oriented pyrolytic graphite (HOPG) surface in the presence of electrolytes. Generally, surface fluorescence XAFS spectroscopy is hindered by strong scattering from the bulk, which often chokes the pulse counting detector. In this work, we show that a bent crystal Laue analyzer (BCLA) can efficiently remove the scattered X‐rays from the bulk even in the presence of solution. We applied the technique to submonolayer (∼1014 atoms cm−2) Pt on HOPG and successfully obtained high signal/noise in situ XAFS data in combination with back‐illuminated fluorescence XAFS (BI‐FXAFS) spectroscopy. This technique allows in situ XAFS measurements of flat electrode surfaces to be performed in the presence of electrolytes.
Rights: This is the peer reviewed version of the following article: Y. Wakisaka, D. Kido, H. Uehara, Q. Yuan, F. E. Feiten, S. Mukai, S. Takakusagi, Y. Uemura, T. Yokoyama, T. Wada, M. Uo, O. Sekizawa, T. Uruga, Y. Iwasawa, K. Asakura, Chem. Rec. 2019, 19, 1157., which has been published in final form at . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 朝倉 清高

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