25th International Congress on X-ray Optics and Microanalysis

The 25th International Conference on X-ray Optics and Microanalysis (ICXOM) was held at the Westin Lombard, IL, USA from August 5th to August 8th 2019.

New X-ray Laboratory Spectrometer

A new 100 W laboratory XAFS spectrometer was successfully commissioned in the Fittschen lab. On May the second the easyXES100-extended was installed in the Material-analysis group at the IAAC. It is one of seven (e.g. MPI-CEC, PSI, HIU Ulm) now installed all over the world. It allows to study elemental species in materials with poor crystallinity in the laboratory; which was previously an exclusive Synchrotron capacity. First of our measurements revealed species information on Vanadium oxidation state in Vanadium Redoxflow Batteries electrolyte. We will extend our studies to determine V species in the solid state components of the battery i.e. the ion exchange membrane and the electrodes.

Picture below: easyXES-extended at the Fittschen laboratory, from right: Dr. Devon Mortensen, Prof. Dr. Fittschen, Andreas Fittschen; graphs: Xanes spectra from the negative electrolyte (left) and the positive electrolyte (right). The energy scale was not normalized.

18. Internationale TXRF-Konferenz in Girona

Vom 25. bis 28. Juni 2019 trafen sich 72 Teilnehmer aus 21 Ländern zu der “18th International Conference on Total Reflection X-ray Fluorescence Analysis and Related Methods” (TXRF-2019) an der Universität von Girona in Katalonien.

Let it flow: Infotag Redox-Flow-Batterien

Am 11. April 2019 fand in Frankfurt der "Let it flow: Infotag Redox-Flow-Batterien" der DECHEMA statt.