asymmetric ligand approach to design volatile molecular precursors for the al-fe intermetallic catalyst
Résumé
The intermetallic compound Al13Fe4 is an active and selective catalyst for the semi-hydrogenation of acetylene in the production process of polyethylene. However, it has been used only in un-supported form which limits its use as a catalyst. With the goal of preparing this catalyst as supported films and/or nanoparticles by Metal-Organic Chemical Vapor Deposition (MOCVD), we have developed novel oxygen-free Fe(II) and Al(III) molecular precursors with new asymmetric triazine ligands featuring different substituents at 1,3-N centres. This presentation will discuss the influence of the nature of the asymmetric triazine ligands as well as ancillary co-ligands in obtaining mono- and dimeric complexes with sufficient volatility. Complete characterization of these new precursors by a range of advanced physico-chemical techniques as well as some preliminary results on their thermal decomposition will be presented.