Hengge, K. A.; Scheu, C.: Novel electrodes for polymer based fuel cells. The 18th Israel Materials Engineering Conference (IMEC18), Dead Sea, Israel (2018)
Hengge, K.: TEM Tomography: Insights into the degradation of Pt/Ru fuel cell catalysts. 3D materials characterization at all length scales and its application to iron and steel, MPIE Düsseldorf, Düsseldorf, Germany (2017)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Scheu, C.: Insights into degradation processes in WO3-x based anodes of HT-PEMFCs via electron microscopic techniques. Fuel Cells Science and Technology 2016 , Glasgow, Scotland, UK (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Welsch, M. T.; Scheu, C.: Template-free synthesized high surface area 3D networks of Pt on WO3-x – a promising alternative for H2 oxidation in fuel cell application. 2016 MRS Fall Meeting, Boston, MA, USA (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Scheu, C.: Electron microscopic insights into degradation processes in high temperature polymer electrolyte membrane fuel cells. Scandem 2015, Jyväskylä, Finland (2015)
Gänsler, T.; Hengge, K. A.; Scheu, C.: 3D Reconstruction of Identical Location Electron Micrographs – Methodology and Pitfalls. IAMNano 2019, International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, Düsseldorf, Germany (2019)
Gänsler, T.; Hengge, K. A.; Beetz, M.; Pizzutilo, E.; Scheu, C.: Tracking the Degradation of Fuel Cell Catalyst Particles: 3D Reconstruction of Nanoscale Transmission Electron Micrographs. CINEMAX IV, "Best poster Award at the Summer School", Toreby, Denmark (2018)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Welsche, M.; Scheu, C.: Material optimization for high-temperature polymer-electrolyte-membrane fuel cells. Material optimization for high-temperature polymer-electrolyte-membrane fuel cells, Duisburg, Germany (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Welsch, M. T.; Scheu, C.: Growth of novel Pt 3D networks on WO3-x electrodes and their effect on the performance of fuel cells. EMC 2016, 16th European Microscopy Congress, Lyon, France (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Scheu, C.: Electron microscopy studies of WO3-x based anodes for high temperature polymer electrolyte membrane fuel cells. IAM Nano 2015, Hamburg, Germany (2015)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Scheu, C.: Degradation analysis of high temperature polymer electrolyte membrane fuel cells via electron microscopic techniques. TEM-UCA European Summer Workshop, Cadiz, Spain (2015)
Hengge, K.: Investigation of alternative catalyst and support materials and their effect on degradation in high-temperature polymer-electrolyte-membrane fuel cells. Dissertation, RWTH Aachen University, Aachen, Germany (2017)
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…
In this project, links are being established between local chemical variation and the mechanical response of laser-processed metallic alloys and advanced materials.
In this project, we aim to achieve an atomic scale understanding about the structure and phase transformation process in the dual-phase high-entropy alloys (HEAs) with transformation induced plasticity (TRIP) effect. Aberration-corrected scanning transmission electron microscopy (TEM) techniques are being applied ...
Femtosecond laser pulse sequences offer a way to explore the ultrafast dynamics of charge density waves. Designing specific pulse sequences may allow us to guide the system's trajectory through the potential energy surface and achieve precise control over processes at surfaces.
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…