End-station 2
End-station 2
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Endstation 2: Summary
Endstation 2: Summary
End-station 2 is situated at the secondary focus spot created by a set of Kirkpatrick-Baez mirrors on the experimental table. The X-ray focus spot can be adjusted between 5 x 5 um to ~ 15 x 15 um (source size limited). The primary purpose of end-station 2 is to perform X-ray powder diffraction on samples under non-ambient condition. The end-station currently focuses on 2 main techniques: The first one is in-situ high-pressure diffraction on samples in diamond anvil cells (DACs) in axial or radial geometry. Both geometries can be combined with double-sided in-situ laser heating. The second set of experiments combines ambient-pressure X-ray powder diffraction with high temperature and controlled atmospheric composition. The end station can also collect single crystal diffraction data sets by means of a single rotation axis.
As detectors, this end-station currently employs a Mar345 image plate reader (cycle-time ca 90 secs) as well as a Dectris Pilatus3 S 1M Hybrid Photon Counting detector.
End station 2 is equipped with a double sided laser-heating system applicable to both axial and radial DAC diffraction geometry. Two 100 W SPI fiber lasers serve as the source. The optical path for laser delivery, signal extraction as well as sample viewing is mounted on a 1 x 1 m breadboard assuring short mechanical lever arms and thus low susceptibility to vibration. Pyrometric temperature measurement is based on peak-scaling temperature mapping.
Endstation 2 : Capabilities
Endstation 2 : Capabilities
Double-sided laser heating for radial diffraction
Double-sided laser heating for radial diffraction
Equipped with SPI 100Watt CW IR fiber laser (1090 nm)
Ruby fluorescence
Ruby fluorescence
On-line and off-line
Resistive heater for radial diffraction
Resistive heater for radial diffraction
~ 750 K is achievable
Double-sided laser heating for axial diffraction
Double-sided laser heating for axial diffraction
Equipped with SPI 100Watt CW IR fiber laser (1090 nm)
Ex- and in- situ ball milling
Ex- and in- situ ball milling
Custom-made design
Lamp heater for capillary samples
Lamp heater for capillary samples
Accessible temperature range ~ (21- 1100°C)
STOVE: Synchrotron Tool for Operando experiments in Variable Environments
STOVE: Synchrotron Tool for Operando experiments in Variable Environments
Combine high temperature (<1300°C), ‘high’-pressure (<50 bars), and controlled atmosphere with controlled humidity
Pressure control with compression membrane
Pressure control with compression membrane
Equipped with DRUCK pressure controller
Controllable gaseous environments
Controllable gaseous environments
In situ and operando X-ray powder diffraction measurements at elevated temperatures
Endstation 2 : Science Highlights
Endstation 2 : Science Highlights
Metallic θ-phase tantalum nitride has a thermal conductivity triple that of copper
Metallic θ-phase tantalum nitride has a thermal conductivity triple that of copper
S. Li et al.
https://doi.org/10.1126/science.aeb1142
Reversible Phase Transitions Enable Cyclic Isothermal CO2 Capture in Redox-Activated Perovskite-Structured Sorbents
Reversible Phase Transitions Enable Cyclic Isothermal CO2 Capture in Redox-Activated Perovskite-Structured Sorbents
L. Brody et al.
https://doi.org/10.1002/adfm.202504769
Alternative Solid-State Synthesis Route for Highly Fluorinated Disordered Rock-Salt Cathode Materials for High-Energy Lithium-Ion Batteries
Alternative Solid-State Synthesis Route for Highly Fluorinated Disordered Rock-Salt Cathode Materials for High-Energy Lithium-Ion Batteries
V. S. Avvaru et al.
https://doi.org/10.1002/aenm.202500492
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