Spectro-Microscopy

Spectro-Microscopy

Our investigations focus on the preparation and modification of thin oxide films on metal supports and metal nanoparticles on oxides and on the structural, electronic and chemical properties of these systems for thermal catalysis.

The experiments are performed with the high resolution spectro-microscope SMART (Spectro-Microscope with Aberration Correction for many relevant Techniques) operating at the BESSY II electron storage ring. This aberration corrected and energy filtered Low Energy Electron Microscope (LEEM) / Photo-Emission Electron Microscope (PEEM) combines microscopy, spectroscopy and diffraction of photo-emitted and reflected electrons. It allows for real-time observations of surface processes like oxidation, structure formation or chemical reactions.

Group Members

Name

Email

Lucas de Souza Caldas

Stephan Pohl

Dr. Mauricio Prieto

Dr. Thomas Schmidt

Marcel Springer

Dr. Liviu Tănase

Dr. Aarti Tiwari

Recent Publications

Mauricio Prieto, Thomas Mullan, Weiming Wan, Liviu Cristian Tanase, Lucas de Souza Caldas, Shamil K. Shaikhutdinov, Joachim Sauer, Denis Usvyat, Thomas Schmidt, and Beatriz Roldan Cuenya, "Plasma Functionalization of Silica Bilayer Polymorphs," ACS Applied Materials and Interfaces 14 (43), 48609-48618 (2022).
Johannes Zeininger, Philipp Winkler, Maximilian Raab, Yuri Suchorski, Mauricio Prieto, Liviu Cristian Tanase, Lucas de Souza Caldas, Aarti Tiwari, Thomas Schmidt, Michael Stöger-Pollach, Andreas Steiger-Thirsfeld, Beatriz Roldan Cuenya, and Günther Rupprechter, "Pattern Formation in Catalytic H2 Oxidation on Rh: Zooming in by Correlative Microscopy," ACS Catalysis 12 (19), 11974-11983 (2022).
Natalia Michalak, Tomasz Ossowski, Zygmunt Miłosz, Mauricio Prieto, Ying Wang, Mirosław Werwiński, Visnja Babacic, Francesca Genuzio, Luca Vattuone, Adam Kiejna, Thomas Schmidt, and Mikołaj Lewandowski, "Ostwald Ripening in an Oxide-on-Metal System," Advanced Materials Interfaces 9 (17), 2200222 (2022).
Sebastian Kunze, Liviu Cristian Tanase, Mauricio Prieto, Philipp Grosse, Fabian Scholten, Lucas de Souza Caldas, D. van Vörden, Thomas Schmidt, and Beatriz Roldan Cuenya, "Plasma-assisted Oxidation of Cu(100) and Cu(111)," Chemical Science 12 (42), 14241-14253 (2021).
Håkon I. Røst, Benjamen P. Reed, Frode S. Strand, Joseph A. Durk, Andrew Evans, Antonija Grubišić-Čabo, Gary Wan, Mattia Cattelan, Mauricio Prieto, Daniel M. Gottlob, Liviu Cristian Tanase, Lucas de Souza Caldas, Thomas Schmidt, Anton Tadich, Bruce C. C. Cowie, Rajesh Kumar Chellappan, Justin W. Wells, and Simon P. Cooil, "A Simplified Method for Patterning Graphene on Dielectric Layers," ACS Applied Materials and Interfaces 13 (31), 37510-37516 (2021).
Mathias Homann, Bernhard von Boehn, Mauricio Prieto, Daniel M. Gottlob, Liviu Cristian Tanase, Thomas Schmidt, Francesca Genuzio, Tevfik O. Menteş, Andrea Locatelli, and Ronald Imbihl, "Coupling of morphological instability and kinetic instability: Chemical waves in hydrogen oxidation on a bimetallic Ni/Rh(111) surface," Physical Review Materials 5 (4), 045002 (2021).
Håkon I. Røst, Rajesh Kumar Chellappan, Frode S. Strand, Antonija Grubišić-Čabo, Benjamin P. Reed, Mauricio Prieto, Liviu Cristian Tanase, Lucas de Souza Caldas, Thipusa Wongpinij, Chanan Euaruksakul, Thomas Schmidt, Anton Tadich, Bruce C. C. Cowie, Zheshen Li, Simon P. Cooil, and Justin W. Wells, "Low-Temperature Growth of Graphene on a Semiconductor," The Journal of Physical Chemistry C 125 (7), 4243-4252 (2021).

Talks

2021
Schmidt, T.: Spectromicroscopy: A Tool for In Situ Studies of Chemical Reactions on Surfaces at Nanometer Scale. Seminar, Spectroscopy in UniSysCat – Status and Perspectives, Online Event (2021)
Schmidt, T.: Spectromicroscopy: A Tool for In Situ Studies of Oxide Films and Thermal Reactions. E-MRS Fall Meeting 2021, Online Event (2021)
Schmidt, T.: Coupled Reactions Over Well-Defined Nanocatalysts. UniSysCat Meeting - Unit A, Online Event (2021)
2020
Schmidt, T.: Spectro-Microscopic in Situ Studies of Electrochemistry and Thermal Reactions. FHI-Workshop on Current Research Topics at the FHI, Online Event (2020)
Schmidt, T.: Research Activities of the ISC Department at Bessy-II: Current State and Perspective. Workshop BESSY III expert meeting Heterogeneous catalysis/Chemistry at surfaces, Online Event (2020)

Former Group Pictures

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