- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Electrochemical Analysis and Applications
- Ionic liquids properties and applications
- Catalysis and Oxidation Reactions
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Electron Microscopy Techniques and Applications
- Thermodynamic properties of mixtures
- Semiconductor materials and devices
- Force Microscopy Techniques and Applications
Freie Universität Berlin
2021-2024
The ionic liquid (IL) trihalogen monoanions [N2221 ][X3 ]- and ][XY2 ([N2221 ]+ =triethylmethylammonium, X=Cl, Br, I, Y=Cl, Br) were investigated electrochemically via temperature dependent conductance cyclic voltammetry (CV) measurements. polyhalogen measured both as neat salts double in 1-butyl-1-methyl-pyrrolidinium trifluoromethane-sulfonate ([BMP][OTf], [X3 /[XY2 0.5 M). Lighter IL displayed higher conductivities than their heavier homologues, with [Cl3 being 1.1 3.7 times greater [Br3...
The Simons process is an electrochemical fluorination method to prepare organofluorine compounds. Despite the wide application, underlying mechanism still unclear. We report investigation of black film formed on surface anodes in aHF by situ Ni K-edge X-ray absorption near edge structure (XANES) investigation. An cell for spectroscopy (XAS) presented.
Abstract A new all‐Manganese flow battery (all‐MFB) as a non‐aqueous hybrid redox‐flow is reported. The discharged active material [Cat] 2 [Mn II Cl 4 ] (Cat = organic cation) utilized in both half‐cells supports long cycle life. reversible oxidation of 2− to III 5 at the positive electrode and manganese metal deposition from negative give cell voltage 2.59 V. Suitable electrolytes are prepared optimized, followed by characterization static cells pumped flow‐cell. Several materials,...
Ionic liquids (IL) are valuable in a variety of applications due to their high electrochemical stability and physical properties. Using the cation 1-methyl-3-octylimidazolium, [OMIM]+, bromidostannate RTIL [OMIM][Sn+IIBr3], "undercooled melt" [OMIM][Sn+IVBr5], IL [OMIM]2[Sn+IVBr6] were synthesized. The uncommon solid state structure [SnBr5]− was elucidated form its salt. Additionally, based on tribromine-monoanion [OMIM][Br3] used dissolve metallic Sn, selectively resulting formation...