New joint leadership for BESSY II
Andreas Jankowiak and Antje Vollmer have been working together on a trusting basis for many years. As the new dual leadership, they are driving forward the technical and scientific development of BESSY II. © HZB/M.Setzpfandt
Andreas Jankowiak as new Technical Director and Facility Spokesperson Antje Vollmer share management responsibilities.
Prof. Andreas Jankowiak has been appointed Technical Director of BESSY II with a term of office of three years as of 1 June 2024 by resolution of the HZB board of directors. Antje Vollmer will start her second term as BESSY II Facility Spokesperson on 1 July 2024. Together, they form the new management duo to coordinate the scientific and technical development of the BESSY II X-ray source on behalf of the HZB management.
They will coordinate with internal stakeholders and external partners, prioritise their requirements, make recommendations to the HZB board of directors and prepare management decisions.
With the establishment of the new management duo, Prof. Bernd Rech, Scientific Director of HZB, wants to streamline the organisational processes around BESSY II and delegate related management tasks. "Our BESSY II+ application and the conceptual preliminary report for the BESSY III (pre-CDR) project have been evaluated extremely positively by scientific review committees," says Bernd Rech. "We must now create the conditions to successfully implement the strategy that has been positively assessed and supported by the supervisory bodies. The new division of labour should help to clearly identify and initiate the necessary steps."
The management duo will work on an equal basis and in mutual coordination. The Facility Spokesperson will focus on all priorities, project planning, investment plans and processes relating to user operation and the strategic and scientific development of the BESSY II user facility and the complementary lab infrastructure. The Technical Director is responsible for the operation of BESSY II and prioritises operational priorities, project planning, investment projects and processes as well as the strategic-technical development of the BESSY II facility and the central infrastructure required for this, including the IT infrastructure.
- 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’.
- Catalysis research with the X-ray microscope at BESSY IIContrary to what we learned at school, some catalysts do change during the reaction: for example, certain electrocatalysts can change their structure and composition during the reaction when an electric field is applied. The X-ray microscope TXM at BESSY II in Berlin is a unique tool for studying such changes in detail. The results help to develop innovative catalysts for a wide range of applications. One example was recently published in Nature Materials. It involved the synthesis of ammonia from waste nitrates.
- BESSY II: Magnetic ‘microflowers’ enhance magnetic fields locallyA flower-shaped structure only a few micrometres in size made of a nickel-iron alloy can concentrate and locally enhance magnetic fields. The size of the effect can be controlled by varying the geometry and number of 'petals'. This magnetic metamaterial developed by Dr Anna Palau's group at the Institut de Ciencia de Materials de Barcelona (ICMAB) in collaboration with her partners of the CHIST-ERA MetaMagIC project, has now been studied at BESSY II in collaboration with Dr Sergio Valencia. Such a device can be used to increase the sensitivity of magnetic sensors, to reduce the energy required for creating local magnetic fields, but also, at the PEEM experimental station, to study samples under much higher magnetic fields than currently possible.