Operando X-ray Photoelectron Spectroscopy for High-Pressure Catalysis Research Using the POLARIS Endstation. Issue 3 (4th May 2022) - Degerman, David; Amann, Peter; Goodwin, Christopher M.; Lömker, Patrick; Wang, Hsin-Yi; Soldemo, Markus; Shipilin, Mikhail; Schlueter, Christoph; Nilsson, Anders