Ultrafast dissociation of molecules studied at BESSY II

Findings could deepen our understanding of chemical reactions at the molecular level

04-Dec-2024 - For the first time, an international team has tracked at BESSY II how heavy molecules – in this case bromochloromethane – disintegrate into smaller fragments when they absorb X-ray light. Using a newly developed analytical method, they were able to visualise the ultrafast dynamics of this ...

Hydrogen chloride can now be stored, processed, and electrolyzed safely thanks to breakthrough

New method paves the way for safer, more sustainable hydrogen and base chemical production

05-Apr-2024 - A research team at Freie Universität Berlin led by Professor Sebastian Hasenstab-Riedel has successfully developed a method for storing and electrolyzing gaseous hydrogen chloride in the form of an ionic liquid. The method allows the hydrogen chloride created as a by-product in traditional ...

Making better use of residual gases

Award for invention for environmentally friendly adsorption of chlorine

23-Nov-2023 - The German Chemical Society (GDCh) awards the Drs. Volker and Elke Münch Prize to the teams led by Professor Dr. Sebastian Hasenstab-Riedel and Professor Dr. Rainer Haag from the Free University of Berlin. The prize from the foundation of the same name, which is based at the GDCh, is endowed with ...

Improved understanding of industrial electrode processes

The findings could help save carbon dioxide in the future

24-Aug-2018 - In the industrial production of chlorine, recently special electrodes have been introduced, which consume much less current than conventional systems. The method requires oxygen which is introduced into hot, highly concentrated sodium hydroxide solution, in which it is poorly soluble. It is still ...

Depletion and enrichment of chlorine in perovskites observed

14-Jul-2015 - X-ray spectroscopy at BESSY II reveals inhomogenous distribution of chlorine in a special class of perovskite materials. The discovery could help to enhance efficiencies of perovskite thin film solar cells by controlled processing to optimize the chlorine distribution. After performance ...

Cloud research at extreme altitudes

Scientists succeed in the world's first aerosol particle sampling from polar stratospheric clouds for a better understanding of ozone depletion

09-Jan-2012 - Polar stratospheric clouds are crucially involved in the formation of the ozone hole. In order to explore their development, measurements at extreme altitudes are needed. This is what researchers from Mainz and Darmstadt have performed last December over northern Sweden. At 20 kilometers altitude ...

Bleach in the Icelandic Volcanic Cloud

Chlorine in the ash plume of the Icelandic volcano Eyjafjallajökull attacked atmospheric trace gases

31-May-2011 - One year after the Eyjafjallajökull volcano in Iceland brought European air traffic to a standstill its ash plume revealed a surprising scientific finding: Researchers at the Max Planck Institute for Chemistry in Mainz found that the ash plume contained not only the common volcanic gas sulfur ...

Key compound of ozone destruction detected

26-Jul-2010 - For the first time, KIT scientists have successfully measured in the ozone layer the chlorine compound ClOOCl which plays an important role in stratospheric ozone depletion. The doubts in the established models of polar ozone chemistry expressed by American researchers based on laboratory ...