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µ-FOCUS 500/600

µ-FOCUS 500/600 High Performance Small-Spot X-Ray Monochromator for X-Ray source

The µ-FOCUS 500/600 X-ray monochromator for UHV enables high resolution XPS measurements in the laboratory off the synchrotron. The high performance monochromator is available with Rowland circle diameter of 500 mm for µ-FOCUS 500 and 600 mm for µ-FOCUS 600, used in larger chambers.  As well due to its overall compactness it also matches customer chambers as a bolt-on component. Al anode X-ray source is used in combination with this monochromator. The achieveble spot size varies between 250 μm (20 W max.) and larger than 1 mm (180 W max.), which is unique to only to SPECS small spot monochromators.

KEY FEATURES

  • Mounting flange DN100CF
  • Al excitation line
  • Rowland Circle with 500 or 600 mm diameter
  • Guaranteed spot size on the sample of 250 µm
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MADE FOR THESE METHODS

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PUBLICATIONS

  1. (2019) Surface Plasmon Enabling Nitrogen Fixation in Pure Water through a Dissociative Mechanism under Mild Conditions

    Nitrogen fixation in a simulated natural environment (i.e., near ambient pressure, room temperature, pure water and incident light) would provide a desirable approach to future nitrogen conversion. As N≡N triple bond has a thermodynamically high cleavage energy, nitrogen reduction under such mild conditions typically undergoes associative alternating or distal pathways rather than follows a dissociative mechanism. Here we report that surface plasmon can supply sufficient energy to activate N2 through a dissociative mechanism in the presence of water and incident light, as evidenced by in-situ synchrotron radiation-based infrared spectroscopy and near ambient pressure X-ray photoelectron spectroscopy. Theoretical simulation indicates that the electric field enhanced by surface plasmon, together with plasmonic hot electrons and interfacial hybridization, may play a critical role in N≡N dissociation. Specifically, AuRu core-antenna nanostructures with broaden light adsorption cross section and active sites achieve an ammonia production rate of 101.4 μmol·g-1·h-1 without any sacrificial agent at room temperature and 2-atm pressure. This work highlights the significance of
    surface plasmon to activation of inert molecules, serving as a promising platform for developing novel catalytic systems.



    C. Hu, X. Chen, J. Jin, Y. Han, S. Chen, H. Ju, J. Cai, Y. Qiu, C. Gao, C. Wang, Z. Qi, R. Long, L. Song, Z. Liu, Y. Xiong
    J. Am. Chem. Soc., Just Accepted Manuscript • Publication Date (Web): 30 Apr 2019
    Read more
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SPARE PARTS

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Product description
Article No.
 
Emitter for µ-Focus 500

Exchange Emitter unit for XR-MF source

2060014088
Set of Al-Anode for XR-MF including water divider

Exchange anode for XR-MF source

2060014234
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