A5024947286- Spectroscopy and Quantum Chemical Studies
- nanoparticles nucleation surface interactions
- Microwave and Dielectric Measurement Techniques
- Electron and X-Ray Spectroscopy Techniques
- DNA and Nucleic Acid Chemistry
- Computational Physics and Python Applications
- Ionic liquids properties and applications
- Force Microscopy Techniques and Applications
- Surface and Thin Film Phenomena
- CO2 Reduction Techniques and Catalysts
- Electrowetting and Microfluidic Technologies
- Electronic and Structural Properties of Oxides
- Advanced Chemical Physics Studies
- Electrochemical Analysis and Applications
- Advanced Electron Microscopy Techniques and Applications
- Electrocatalysts for Energy Conversion
Technical University of Munich
2021-2023
Fritz Haber Institute of the Max Planck Society
2023
Transition metal carbides, especially Mo2C, are praised to be efficient electrocatalysts reduce CO2 valuable hydrocarbons. However, on Mo2C in an aqueous electrolyte, exclusively the competing hydrogen evolution reaction takes place, and this discrepancy theory was traced back formation of a thin oxide layer at electrode surface. Here, we study reduction activity non-aqueous electrolyte avoid such passivation determine products pathway. We find tendency carbon monoxide. This process is...
The characterization of liquid-vapor interfaces at the molecular level is an important underpinning for a basic understanding fundamental heterogeneous processes in many areas, such as atmospheric science. Here we use X-ray photoelectron spectroscopy to study adsorption model surfactant, octanoic acid, water-gas interface. In particular, examine information contained angular distributions and show that about relative depth molecules functional groups within can be obtained from these...
The determination of depth profiles across interfaces is primary importance in many scientific and technological areas. Photoemission spectroscopy principle well suited for this purpose, yet a quantitative implementation investigations liquid-vapor hindered by the lack understanding electron-scattering processes liquids. Previous studies have shown, however, that core-level photoelectron angular distributions (PADs) are altered depth-dependent elastic electron scattering can, thus, reveal...
In a continued quest to monitor subsecond surface dynamics on the atomic scale and improve imaging resolution, FAST module accelerate existing scanning probe microscopy setups was previously presented. Hereby, speedup is enabled by external electronics without modification of actual instrument. The resulting one-dimensional (1D) data stream, recorded while tip oscillates in sinusoidal motion, has be reconstructed into layered rectangular matrix order visualize movie. Pythonbased pyfastspm...
The multipole-expansion (MPE) model is an implicit solvation used to efficiently incorporate solvent effects in quantum chemistry. Even within the recent direct approach, multipole basis MPE express dielectric response still solves electrostatic problem inefficiently or not at all for solutes larger than approximately ten non-hydrogen atoms. In existing parametrizations, resulting systematic underestimation of solute-solvent interaction presently compensated by a overestimation...
The multipole-expansion (MPE) model is an implicit solvation used to efficiently incorporate solvent effects in quantum chemistry. Even within the recent direct approach, multipole basis MPE express dielectric response still solves electrostatic problem inefficiently or not at all for solutes larger than $\approx 10$ non-hydrogen atoms. In existing parameterizations, resulting systematic underestimation of solute-solvent interaction presently compensated by a overestimation non-electrostatic...