65143 2025 eng lecture 0 -- -- -- A Bioelectrochemical approach for reducing CO2 to fuels or value-added chemicals allows overcoming the limitations of a pure biochemical or electrochemical approach. A Bioelectrochemical system (BES) for this application has been developed in cooperation with TUM in the first project phase. BAM's contribution to the research focuses on the electrochemical side of the setup, mainly on the development of a suitable CO2RR catalyst for reducing CO2 to CO, which is then consumed by actogenic bacteria to produce further products. Single-metal-atom catalysts in a nitrogen-doped carbon matrix (M-N-Cs) are a promising, sustainable alternative to expensive rare-metal catalysts like Ag and Au. In this work, the first-generation catalyst, a ZIF-8-based Co-N-C is compared to a Mg salt mix templated Ni-N-C. In the new catalysts, the activity for CO2RR as well as the stability during BES operation could be enhanced. E-Biocat Statusupdate 2025 Karlsruhe, Germany 01.04.2025 01.04.2025 0 publish false true Andrea Sterr Irina Schwarz eng uncontrolled CO2RR eng uncontrolled M-N-Cs eng uncontrolled Bioelectrochemical System Angewandte Physik 3 Gefahrgutumschließungen; Energiespeicher Energie Elektrische Energiespeicher und -umwandlung Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation 3.6 Elektrochemische Energiematerialien