Biedermann, P. U.: Intermediates of the Electrochemical Oxygen Reduction in Aqueous Media. ICAMS-Seminar, Interdisciplnary Centre for Advanced Materials Simulation, Ruhr-Universität Bochum, Germany (2010)
Hamou, R. F.; Biedermann, P. U.; Erbe, A.; Rohwerder, M.: Numerical Investigation of Electrode Surface Potential Mapping with Scanning Electrochemical Potential Microscopy. The 12th International Scanning Probe Microscopy Conference, Sapporo, Japan (2010)
Hamou, R. F.; Biedermann, P. U.; Erbe, A.; Rohwerder, M.: Numerical simulation of probing the electric double layer by scanning electrochemical Potential microscopy. 217th ECS Meeting, Vancouver, Canada (2010)
Biedermann, P. U.: Electrochemical Oxygen Reduction in Aqueous Solution, A DFT Study of the Intermediates. NACE Corrosion 2010, San Antonio, TX, USA (2010)
Biedermann, P. U.: Theoretical Investigation of the Electrochemical Oxygen Reduction Mechanism. Minisymposium "Perspectives in Quantum chemistry for Electrochemistry", Ruhr-Universität Bochum, Germany (2010)
Hamou, R. F.; Biedermann, P. U.; Erbe, A.; Rohwerder, M.: Numerical simulation of probing the electric double layer by scanning electrochemical potential microscopy. International Workshops on Surface Modification for Chemical and Biochemical Sensing, Przegorzaly, Poland (2009)
Hamou, R. F.; Biedermann, P. U.; Erbe, A.; Rohwerder, M.: Screening effects in probing the double layer by scanning electrochemical potential microscopy. Comsol European Conference October 2009, Milan, Italy (2009)
Hamou, R. F.; Biedermann, P. U.; Erbe, A.; Rohwerder, M.: Simulation of probing the electric double layer by scanning electrochemical potential microscopy (SECPM). 11th International Fischer Symposium on Microscopy in Electrochemistry, Benediktbeuern, Germany (2009)
Hamou, R. F.; Biedermann, P. U.; Blumenau, A. T.: FEM Simulation of the Scanning Electrochemical Potential Microscopy (SECPM). SurMat Seminar, Schloß Gnadenthal, Kleve, Germany (2008)
Torres, E.; Biedermann, P. U.; Blumenau, A. T.: High density structures of ethyl-thiol SAM´s on Au(111): A DFT study. SurMat Seminar, Schloß Gnadenthal, Kleve, Germany (2008)
Torres, E.; Biedermann, P. U.; Blumenau, A. T.: The Role of Gold Adatoms in Self-Assembled Monolayers of Thiol on Au(111). 6th Congress of the International Society for Theoretical Chemical Physics, ISTCP-VI, University of British Columbia, Vancouver, Canada (2008)
Biedermann, P. U.; Blumenau, A. T.: Ab-Initio Calculation of the Standard Hydrogen Electrode Potential and Application to the Mechanism of the Oxygen Reduction. Workshop on Converging Theoretical and Experimental Approaches to Corrosion, MPIE, Düsseldorf, Germany (2007)
Blumenau, A. T.; Biedermann, P. U.; Torres, E.: Modelling adhesion and delamination at oxide/polymer interfaces. Multiscale Material Modeling of Condensed Matter, MMM2007, St. Feliu de Guixols, Spain (2007)
Biedermann, P. U.; Torres, E.; Blumenau, A. T.: Oxygen Reduction at Thiol/Au(111)SAMs, Atomistic Modelling and Experiment. 212th ECS Meeting, Washington, D.C., USA (2007)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.