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DTSTART:20190101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20200720
DTEND;VALUE=DATE:20200722
DTSTAMP:20260718T111016
CREATED:20200621T134914Z
LAST-MODIFIED:20200727T030541Z
UID:488-1595203200-1595375999@xrayabsorption.org
SUMMARY:Li Song: Soft X-ray endstaions at the Hefei Light Source and some applications of XAS
DESCRIPTION:Hefei Light Source (HLS) is the first dedicated synchrotron radiation facility in China with electron ring energy of 0.8 Gev\, which is located on the West Campus of the University of Science and Technology of China (USTC). With the completion of twice constructions and recent upgradation\, HLS become a fully upgraded soft X-ray synchrotron radiation facility\, now operating ten experimental stations (Infrared Spectroscopy and Microspectroscopy\, Combustion and Flame\, Mass Spectrometry\, Soft X-ray Microscopy\, Spectral Radiation Standard and Metrology\, Atomic & Molecular Physics\, Photoemission Spectroscopy\, Catalysis and Surface Science\, X-Ray Magnetic Circular Dichroism\, Angle-resolved Photoemission Spectroscopy) [1]. The well-designed beamlines and experimental stations at HLS\, together with the Shanghai synchrotron Radiation Facility and the Beijing Synchrotron Radiation Facility\, allow us to perform cutting edge scientific experiments. Here\, I will briefly introduce the soft X-ray endstations at HLS\, and present our recent studies based on X-ray absorption techniques. In particular\, two progress will be discussed: (1) adopt the rational atom-binding strategy and develop the method of precise nano-confined synthesis\, subsequently establish the structure-property relationships in several functional nanomaterials anchored with single atoms by combining synchrotron XAS and XPS [2-5]; (2) propose the controllable ion-intercalating and ion-exchanging strategies and develop the method of in-situ reconstructed synthesis\, eventually clarify the working mechanism of cation-/anion-modulated functional nanomaterials by the means of operando XAS with synchrotron-on-line devices[6-9]. \n  \nReferences: \n\nhttp://en.nsrl.ustc.edu.cn/main.htm\n\nAtomically dispersed platinum supported on curved carbon supports for efficient electrocatalytic hydrogen evolution\, Nature Energy\, 2019\, 4:512-518. https://doi.org/10.1038/s41560-019-0402-6\n\nAchieving Efficient Alkaline Hydrogen Evolution Reaction over a Ni5P4 Catalyst Incorporating Single-Atomic Ru Sites\, Advanced Materials\, 2020\, 32:1906972. https://doi.org/10.1002/adma.201906972\n\nElectrochemical Conversion of CO2 to Syngas with Controllable CO/H2 Ratios over Co and Ni Single-Atom Catalysts\, Angewandte Chemie International Edition\, 2020\, 59:3033-3037. https://doi.org/10.1002/anie.201912719\n\nSingle Nickel Atoms on Nitrogen-Doped Graphene Enabling Enhanced Kinetics of Lithium-Sulfur Batteries\, Advanced Materials\, 2019\, 31:1903955. https://doi.org/10.1002/adma.201903955\n\nStable Metallic 1T-WS2 Nanoribbons Intercalated with Ammonia Ions: The Correlation between Structure and Electrical/Optical Properties\, Advanced Materials\, 2015\, 27:4837-4844. https://doi.org/10.1002/adma.201502134\n\nAtomic Cobalt Covalently Engineered Interlayers for Superior Lithium-Ion Storage\, Advanced Materials\, 2018\, 30:1802 https://doi.org/10.1002/adma.201802525525.\n\nTracking Structural Self-Reconstruction and Identifying True Active Sites toward Cobalt Oxychloride Precatalyst of Oxygen Evolution Reaction\, Advanced Materials\, 2019\, 31:1805127. https://doi.org/10.1002/adma.201805127\n\nAtomic Sn4+ Decorated into Vanadium Carbide MXene Interlayers for Superior Lithium Storage\, Advanced Energy Materials\, 2018\, 9:1802977. https://doi.org/10.1002/aenm.201802977 \n\n\n 
URL:https://xrayabsorption.org/events/journalclub-li-song/
CATEGORIES:XAFS Journal Club
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