Development of Simultaneous Measurement System for X-ray Absorption Spectra at Two Absorption Edges
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- KATAYAMA Misaki
- Synchrotron Radiation Center, Ritsumeikan University
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- YAMAGISHI Hirona
- Synchrotron Radiation Center, Ritsumeikan University
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- YAMAMOTO Yusaku
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University
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- INADA Yasuhiro
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University
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説明
<p>Dispersive X-ray absorption fine structure (DXAFS) spectroscopy is a versatile measurement technique for analyzing chemical reactions in real time. We have developed a novel time-resolved DXAFS instrument based on two polychromators and a wide-range position-sensitive detector that permits direct observation of the synergistic effects of two elements. This system enables simultaneous acquisition of the X-ray absorption spectra for two different elements without any mechanical movement of the X-ray optics. The developed system was successfully applied to monitor both the synthesis of a Ni–Cu bimetallic catalyst, which revealed that the reduction of Ni occurred at a higher temperature than that of Cu, and the charge–discharge processes of a LixNi0.5Mn1.5O4-based lithium-ion battery, which demonstrated that the redox reactions of Ni and Mn occurred sequentially at specific electrode potentials.</p>
収録刊行物
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- Analytical Sciences
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Analytical Sciences 36 (1), 47-53, 2020-01-10
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390846609792171008
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- NII論文ID
- 130007783936
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- NII書誌ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 030213733
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- PubMed
- 31588067
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- Web Site
- http://id.ndl.go.jp/bib/030213733
- https://ndlsearch.ndl.go.jp/books/R000000004-I030213733
- https://link.springer.com/content/pdf/10.2116/analsci.19SAP02.pdf
- https://link.springer.com/article/10.2116/analsci.19SAP02/fulltext.html
- https://www.jstage.jst.go.jp/article/analsci/36/1/36_19SAP02/_pdf
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- 本文言語コード
- en
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- NDLサーチ
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