20 Years Russian-German Joint Laboratory at BESSY II
To mark its 20th anniversary, the Russian-German Laboratory at the BESSY II storage ring for synchrotron radiation in Berlin is organising an online workshop on 18 and 19 November. Scientists will discuss the future perspectives of Russian-German cooperation as well as innovative projects and new goals of the laboratory.
Since its foundation two decades ago, numerous scientists from Russia and Germany have worked at the Russian-German Joint Laboratory and have since published around 770 publications. The research cooperation is now supported by eight partner organisations - Freie Universität Berlin, Helmholtz-Zentrum Berlin, Technische Universität Dresden and Technische Universität Bergakademie Freiberg. They are joined by St. Petersburg State University, the Ioffe Institute in St. Petersburg and the Kurchatov Institute and Shubnikov Institute of Crystallography in Moscow.
The laboratory receives funding from the Federal Ministry of Education and Research. Messreisen supports the HZB and the German-Russian Centre of Excellence G-RISC, which is funded by the German Academic Exchange Service (DAAD) with funds from the Federal Foreign Office.
The researchers will use the anniversary workshop to discuss current highlights from their research. Expert lectures will deal with the magnetism of two-dimensional crystals, i.e. novel materials that can make the computer hardware of the future more powerful and energy-efficient, as well as new battery materials and the question of why novel materials for solar cells show unexpectedly high efficiency. "What does the future hold for the Russian-German Laboratory?" asks Eckart Rühl, Professor of Physical Chemistry at the Free University of Berlin and coordinator of the research laboratory. New synchrotron radiation sources are already being planned in Germany and Russia, he says. "BESSY II will continue to provide excellent opportunities for the Russian-German Laboratory in the coming decade. And the planned successor source BESSY III will make previously unfeasible experiments possible!" emphasises Prof. Dr. Jan Lüning, scientific director of Helmholtz-Zentrum Berlin.
Program of the Workshop on 18 and 19 November 2021
- Battery research: visualisation of aging processes operandoLithium button cells with electrodes made of nickel-manganese-cobalt oxides (NMC) are very powerful. Unfortunately, their capacity decreases over time. Now, for the first time, a team has used a non-destructive method to observe how the elemental composition of the individual layers in a button cell changes during charging cycles. The study, now published in the journal Small, involved teams from the Physikalisch-Technische Bundesanstalt (PTB), the University of Münster, researchers from the SyncLab research group at HZB and the BLiX laboratory at the Technical University of Berlin. Measurements were carried out in the BLiX laboratory and at the BESSY II synchrotron radiation source.
- New instrument at BESSY II: The OÆSE endstation in EMILA new instrument is now available at BESSY II for investigating catalyst materials, battery electrodes and other energy devices under operating conditions: the Operando Absorption and Emission Spectroscopy on EMIL (OÆSE) endstation in the Energy Materials In-situ Laboratory Berlin (EMIL). A team led by Raul Garcia-Diez and Marcus Bär showcases the instrument’s capabilities via a proof-of-concept study on electrodeposited copper.
- Green hydrogen: A cage structured material transforms into a performant catalystClathrates are characterised by a complex cage structure that provides space for guest ions too. Now, for the first time, a team has investigated the suitability of clathrates as catalysts for electrolytic hydrogen production with impressive results: the clathrate sample was even more efficient and robust than currently used nickel-based catalysts. They also found a reason for this enhanced performance. Measurements at BESSY II showed that the clathrates undergo structural changes during the catalytic reaction: the three-dimensional cage structure decays into ultra-thin nanosheets that allow maximum contact with active catalytic centres. The study has been published in the journal ‘Angewandte Chemie’.