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Berlin 2024 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 13: Ultrafast Electron Dynamics at Surfaces and Interfaces II

O 13.1: Topical Talk

Montag, 18. März 2024, 15:00–15:30, MA 041

Photocatalysis at the surface the TiO2 on its real timeMichael Wagstaffe1, Lukas Wenthaus2, Adrian Dominguez-Castro3, Dmytro Kutnyakhov2, Siarhei Dziarzhytski2, Simon Chung1, Guilherme Dalla Lana Semione1, Steffen Palutke2, Federico Pressacco2, Michael Heber2, Giuseppe Mercurio2, Harald Redlin2, Helena Gleißner1, Verena Kristin Gupta3, Nicolai Klemke4, Yudong Yang4, Thomas Frauenheim5, Adriel Dominguez6, Franz Kärtner4, Angel Rubio7, Wilfried Wurth2, Andreas Stierle1, and •Heshmat Noei11Centre for X-ray and Nanoscience (CXNS), Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany — 2Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85 D-22607, Hamburg, Germany — 3Bremen Center for Computational Material Science (BCCMS), Uni- versity of Bremen, Bremen, Germany — 4Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany — 5Computational Science and Applied Research Institute (CSAR), 518110, Shenzhen, China — 6Nano-Bio Spectros- copy Group, Departamento de Fisica de Materiales, San Sebastián, Spain; — 7Max Planck In- stitute for the Structure and Dynamics of Matter, Hamburg, Germany

The femtosecond resolution soft X-ray photoemission spectroscopy results are combined with theoretical calculations to provide crucial insight concerning reaction mechanisms and dynamics of the interaction of water, oxygen and carbon monoxide with the surface of TiO2 and the interfacial charge transfer during the initial steps of the reaction.

Keywords: Surface and Interface; Photocatalysis; Time-resolved Spectroscopy; Pump-probe; Free electron laser

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