Prof. Dr.-Ing. Alexander Grünberger (KIT, Instituts für Bio- und Lebensmitteltechnik (BLT), Mikrosysteme in der Bioverfahrenstechnik)  

Prof. Dr.-Ing. Michael Claeys (University of Cape Town, UCT)  

Karl Mayrhofer, Serhiy Cherevko, Ioannis Katsounaros, Balazs Berkes, Pavlo Nikolaenko     Helmholtz-Institute Erlangen-Nürnberg, Forschungszentrum Jülich   The investigation of novel catalyst materials for applications in fuel cells and electrolyzers, as well as the assessment of operation regimes, demands fast and highly informative characterization methods. Standard electrochemical approaches are often insufficient in information depth particularly when it comes to studying dynamic processes with high time resolution, so in-situ or online coupled analytics are necessary to enhance knowledge on catalytic materials. In this presentation I will demonstrate the portfolio of coupled analytical techniques that have been developed over the last decade in our team, and which help obtaining complementary data on particularly stability versus dissolution and selectivity towards gases and liquid chemical products. Starting out from an advanced high-throughput screening approach as the electrochemical platform, namely the Scanning Flow Cell (SFC), various coupled mass spectrometry techniques with second time resolution provide novel insights into electrocatalytic processes. Hopefully these insights aid in the further technical developments of novel catalysts and improved reaction conditions for fuel cells and electrolyzers, which are so desperately required for the successful implementation of the Energiewende.     References Cherevko, S.; Mayrhofer, K. J. J.; Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry, vol.1, pp 326–335. (2018) Khanipour, P.; Loffler, M.; Reichert, A.M.; Haase, F.T.; Mayrhofer, K.J.J.; Katsounaros, I.; Electrochemical Real-Time Mass Spectrometry (EC-RTMS): Monitoring Electrochemical Reaction Products in Real Time; Angewandte Chemie – International Edition, 2019, Vol. 58, 22, 7273 – 7277. Ranninger, J.; Wachs, S.J.; Möller, J.; Mayrhofer, K.J.J.; Berkes, B.B.; On-line monitoring of dissolution processes in nonaqueous electrolytes - A case study with platinum; Electrochem. Communications, 2020, Vol. 114, Article Number 106702.