Catalysis research aims to make chemical reactions more efficient; the “secret” is the reduction of the activation energy by catalytically active atoms on the surface. She works in an interdisciplinary manner (a better word would be syndisciplinary, like collaborating) with chemists and mechanical engineers. Without the huge Haber-Bosch process for fertilizer production, for example, world food security would not be possible. The chemist invents particularly active centers on the surfaces of metals, oxides, nanomaterials, MOFs, … using chemical preparation, microreactors and analytics for this purpose. Computer-aided modeling and machine learning are used to accelerate catalyst development. The mechanical engineer translates this knowledge into a reactor that works both technically and commercially.