In situ TEM nano-reactor gas cell system

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The Institute of Micro- and Nanostructure Research (IMN) runs the electron microscopy facility of the Center for Nanoanalysis and Electron Microscopy (CENEM), an interdisciplinary center and user facility of the Friedrich-Alexander Universität Erlangen-Nürnberg (FAU). CENEM provides FAU’s researchers with high-resolution and nanoanalytical techniques for advanced materials characterization. In the area of advanced transmission electron microscopy CENEM is equipped with a double-corrected monochromated 300 kV TEM/STEM and a recently installed probe-corrected 200 kV TEM/STEM with cold field emission, both equipped with analytical techniques (EDXS and EELS). Additionally, IMN and CENEM own a multitude of in situ TEM holders, which are of great importance in our RTG 1896 on “in situ microscopy” as well as in several collaborative research projects (CRC 1452, CRC-TR 103, CRC 953 and CRC 1411). The goal of the new CRC 1452 “Catalysis at Liquid Interfaces” is to explore an innovation for engineering heterogeneous catalysts at highly dynamic liquid and gas interfaces and to explore the highly dynamic, anisotropic environment of liquid interfaces to create, tailor and stabilise catalytically active sites with unique reactivity and performance. An in situ TEM nano-reactor gas cell system allows not only direct observation of the nanoscale structural response under catalytic processes, but also simplifies the complicated work-flow of identical location characterization before and after macroscale catalytic tests. These possibilities are of utmost importance to study catalytic reactions in situ and in operando with high spatial resolution under relevant conditions regarding gas composition, pressure and temperature with high spatial resolution. The studies are envisioned to build up a fundamental understanding starting from model systems in bulk and thin film form and extend to the catalyst/support systems used in application. Furthermore the proposed in situ TEM nano-reactor gas cell system will be used in CRC-TR 103 “From atoms to turbine blades – a scientific basis for a new generation of single crystal superalloys” to study the oxidation behaviour of single crystal superalloys at high temperatures.