In this project, we aim to prepare supported heterogeneous ligand-free catalysts for ethylene hydroformylation. It is essential to apply a support material that stabilizes the catalytically active species and prevent leaching, agglomeration or other types of deactivation. In this regards, carbon supports were chosen owing to their thermal conductivity, their minimal interaction with the active species and the possibility of tuning their surface properties by adding oxygen containing groups. Herein, a functionalized carbon has been synthesized and used for the preparation of a supported rhodium and cobalt nanoparticle catalyst. It is therefore interesting to learn more about how nature and state of the active species (Rh or Co), and the surface properties of the support influences the catalytic performance. We will use advanced characterization techniques such as XRD, XPS, TEM, and EXAFS. Temperature programmed runs and long-term catalytic tests will be carried out in order to provide a deeper understanding of catalyst activity, selectivity and its stability. The goal is also to study the physicochemical properties of catalysts after the catalytic reaction that can provide a better understanding of catalytic process.