HIPPIE is a state-of-the-art beamline for Ambient pressure X-ray photoelectron spectroscopy (APXPS). The combination of the exceptional performance of the 3 GeV ring with an innovative design of the experimental station results in a beamline that is not just outstanding in a pure electron spectroscopy context but also significantly expands the scientific issues that can be addressed. The overarching objective of the HIPPIE beamline is to address the pressure and materials gaps, that is to relax the vacuum constraints, which traditionally have limited the processes and systems possible to study, and to move from model to real – and thereby often much more complicated – materials systems
HIPPIE, along with the complimentary branch of SPECIES, make up the MAX IV APXPS group. With differing photon characteristics and sample environments, together these two beamlines allow for a diverse range of APXPS experiments.
HIPPIE Beamline paper:
HIPPIE: a new platform for ambient pressure X-ray photoelectron spectroscopy at the MAX IV Laboratory
Zhu, S., Scardamaglia, M., Kundsen, J., Sankari, R., Tarawneh, H., Temperton, R., Pickworth, L., Cavalca, F., Wang, C., Tissot, et al. (2021). J. Synchrotron Rad. 28, DOI: https://doi.org/10.1107/S160057752100103X
|Available for||Technique description|
|General Users||Catalysis Cell
Allows APXPS of a solid-gas interface, typically up to 10 mbar. Used for catalysis and surface science experiments
Allows APXPS and FTIR on the same spot. Used for catalysis and surface science experiments
|General Users||Liquid/Electrochemistry Cell
Allows APXPS of a solid-liquid (dip-and-pull setup) and gas-liquid (liquid jet setup) interfaces up to 30 mbar for electrochemistry, energy, environmental, and atmospheric science experiments.
New event-averaging method to map catalyst structure and local gas environment simultaneously enables depiction of transitional active surface structures
One of the key challenges in catalysis research is to understand how catalysts’ structure and function relate to each other. Regardless of the type of catalyst in question, structure and function are dynamic with a strong dependence on the localized reaction conditions such as temperature, pressure, and gas composition just above the catalyst surface. Now,