A5059775952- CO2 Reduction Techniques and Catalysts
- Graphene research and applications
- Advanced Condensed Matter Physics
- Catalytic Processes in Materials Science
- Topological Materials and Phenomena
- Catalysis and Oxidation Reactions
- Gas Sensing Nanomaterials and Sensors
- Surface Chemistry and Catalysis
- Advanced Electron Microscopy Techniques and Applications
- Surface and Thin Film Phenomena
- Electron and X-Ray Spectroscopy Techniques
Ruhr University Bochum
2019-2021
University of Duisburg-Essen
2013-2014
Using spot profile analysis low energy electron diffraction, we studied the growth mode and strain state of ultra-thin epitaxial Bi2Se3(111) films grown by molecular beam epitaxy on Si(111). The first layer grows as complete quintuple covers Si substrate before next nucleates. Its lateral lattice parameter is increased 1% compared with value a‖ = 4.136 Å for a 6-nm-thick film. With increasing film thickness, continuous change observed to an asymptotic value, which explained van der...
We investigate superstructures formed by CO2 on Ag(100) and Cu(111) from small clusters forming at 21 K up to multilayers grown 43 low temperature scanning tunneling microscopy. On both surfaces, nucleates only defects, here co-adsorbed CO. At the lower adsorption temperature, of different symmetry coexist surfaces submonolayer coverage, while higher differ largely for two surfaces. Ag(100), monolayer exhibits a long-range order interrupted antiphase domain boundaries. Cu(111), random...
Abstract Though largely influencing the efficiency of a reaction, molecular‐scale details local environment reactants are experimentally inaccessible hindering an in‐depth understanding catalyst's reactivity, prerequisite to maximizing its efficiency. We introduce method follow individual molecules and their changing during photochemical reaction. The is illustrated for rate‐limiting step in photolytic dissociation CO 2 on two catalytically relevant surfaces, Ag(100) Cu(111). reveal with...
Abstract Though largely influencing the efficiency of a reaction, molecular‐scale details local environment reactants are experimentally inaccessible hindering an in‐depth understanding catalyst's reactivity, prerequisite to maximizing its efficiency. We introduce method follow individual molecules and their changing during photochemical reaction. The is illustrated for rate‐limiting step in photolytic dissociation CO 2 on two catalytically relevant surfaces, Ag(100) Cu(111). reveal with...