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Pao, Chih-Wen; Chen, Jeng-Lung; Lee, Jyh-Fu; Tsai, Meng-Che; Huang, Chi-Yi; Chiu, Chao-Chih; Chang, Chao-Yu; Chiang, Liang-Chih; Huang, Yu-Shan
Journal of synchrotron radiation, 20/May , Letnik: 28, Številka: 3Journal Article
The new TPS 44A beamline at the Taiwan Photon Source, located at the National Synchrotron Radiation Research Center, is presented. This beamline is equipped with a new quick‐scanning monochromator (Q‐Mono), which can provide both conventional step‐by‐step scans (s‐scans) and on‐the‐fly scans (q‐scans) for X‐ray absorption fine‐structure (XAFS) spectroscopy experiments, including X‐ray absorption near‐edge structure (XANES) and extended X‐ray absorption fine‐structure (EXAFS) spectral measurements. Ti and Te K‐edge XAFS spectra were used to demonstrate the capability of collecting spectra at the limits of the working energy range. The Ni and Cu K‐edge XAFS spectra for a Cu‐doped Pt/Ni nanocomposite were acquired to test the performance of the newly commissioned beamline. Pt L3‐ and Ru K‐edge quick‐scanning XAFS (QXAFS) spectra for standard Pt and Ru foils, respectively, revealed the stability of the q‐scan technique. The results also demonstrated the beamline's ability to collect XAFS spectra on a sub‐second timescale. Furthermore, a Zn(s)|Zn2+(aq)|Cu(s) system was tested to indicate that the states of the Zn electrode could be observed in real time for charging and discharging conditions using an in situ/operando setup combined with QXAFS measurements. The new TPS 44A beamline at the Taiwan Photon Source is presented. The beamline is equipped with a new quick‐scanning monochromator (Q‐Mono), which can provide both conventional step‐by‐step scans and on‐the‐fly scans for XAFS spectroscopy experiments, including XANES and EXAFS spectral measurements.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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