The current status of time-resolved XAS beamline at SLRI and application on in situ experiments
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Author list: Limphirat W., Wiriya N., Tonlublao S., Chaichoy S., Pruekthaisong P., Duandmanee S., Kamonpha P., Kaewsuwan D., Meethong N., Poo-arporn R.P., Songsiriritthigul P., Hormes J., Poo-arporn Y.
Publisher: Elsevier
Publication year: 2020
Journal: Radiation Physics and Chemistry (0969-806X)
Volume number: 171
Start page: 108750
ISSN: 0969-806X
Languages: English-Great Britain (EN-GB)
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Abstract
Time-resolved X-ray absorption spectroscopy (TRXAS) beamline (BL2.2) was constructed to utilize a synchrotron radiation produced by a 1.2 T bending magnet from a 1.2 GeV storage ring at the Synchrotron Light Research Institute (SLRI), Thailand. The main optical component of the TRXAS beamline is an energy dispersive monochromator (EDM) which was donated by the University of Bonn, Germany. Using the energy-dispersive scheme with a position-sensitive detector, the beam size at the sample position can be small and have a fast detection speed in the XAS spectrum. At BL2.2, XAS measurement can be performed in the transmission mode using a 1024-pixel position-sensitive detector (PSD) and x-ray scintillator. Currently, the maximum measurable x-ray energy has been extended to 12 keV for the Pt L3-edge EXAS measurement. Due to the advantages of the energy-dispersive setup, this beamline has focused on in-situ XAS experiments. In this review, the researchers summarize the developments of experimental tools to characterize catalysts, Li-ion batteries, and thin film using TRXAS to determine their electronic properties and structure under applied conditions. © 2020 Elsevier Ltd
Keywords
In-situ XAS
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