The Hensen group focuses on the generation of scientific and technological knowledge in the field of catalyst systems relevant to the development of clean and sustainable processes for the production of fuels and chemicals. Modern concepts of catalysis are used to design catalysts to use current and future feedstocks in an as sustainable manner as possible with minimum environmental burden and energy consumption. Focus is on the synthesis of complex catalyst systems containing well-designed catalytically active ensembles and structured at various length scales to optimize reaction and diffusion. Applications are directed towards the improvement of current industrial processes, transition technologies involving natural gas and the implementation of novel processes using renewable feedstocks such as biomass and carbon dioxide.