Overview
![SPEAR3 SPEAR3](/ssrl/web/sites/default/files/images/bl-placeholder.jpg)
26-pole Elliptical Polarizing Undulator (EPU), 0.25 mrad Acceptance
Beam line in transition.
The BL13-2 staiton has an APPES (ambient pressure photoemission spectroscopy) station with a differentially pumped electron spectrometer (SES-100, VG-Scienta). The station is designed for photoemission spectroscopy and Auger electron yield x-ray absorption spectroscopy measurements under near ambient conditions (up to 10 Torr). The APPES station provides the capability to investigate thermal catalytic and electrochemical processes under reactive conditions. The sample temperature can be varied from 300 K to 600 K under reactive conditions by a ceramic heater.
Sample Environment —
Sample requirement | Non-Volatile, Non-Toxic |
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Sample temperature | 300 - 600 K |
Sample size | < 5 x 5 mm2 |
Other | UHV ~ 10 Torr |
Instrumentation —
Ambient Pressure Photoemission System (APPES) |
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Specifications
Technical Specifications
Energy —
Energy Range | Resolution ΔE/E | Spot Size | Flux | |
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Focused | 270-1450 eV (XPS), 180-1450 eV (XAS) | 1 x 10-4 | 0.01 x 0.075 mm2 | 1011 - 1012 |
Optics —
M0 Mirror | Monochromator | Kirkpatrick-Baez Mirror Pair (Pt) |
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Horizontal flat followed by a vertical sphere, both Pt coated | Spherical Grating Monochrometer (SGM) 300 l/mm, Ni coated 600 l/mm, Ni coated 1100 l/mm, Pt coated | LN2 cooled, Si(111), ϕ = 0o , Si(311), ϕ = 0o. double-crystal. |
Publications
Publications
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Highlights
Science Highlights
Beam Line 13-2 Science Highlights
Experimental Station 13-2
In-situ X-ray Photoelectron Spectroscopy of a Catalyst for Artificial Photosynthesis
Hydrogen Adsorption Induces Interlayer Carbon Bond Formation in Supported Few-Layer Graphene
Direct Observation of the Oxygenated Species during Oxygen Reduction on a Platinum Fuel Cell Cathode
Element-Specific and Real-Time Observation of CO-Ru Chemisorption Bond Breaking with Soft X-ray Spectroscopy
X-rays Illuminate a Microscopic Picture of the Correlation between Nitrogen-dopant Bond Type and Electronic Effects in Single-layer Graphene
Tuning the Metal-Adsorbate Chemical Bond through the Ligand Effect on Platinum Subsurface Alloys
Reducing Fuel Cell Costs by Changing the Structure and Reactivity of Platinum
Hydrogen Storage in Platinum-Single-Walled Carbon Nanotube Composites at Near Ambient Conditions through "Spillover" Mechanism
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