Fig. 1: Combinatorial sites catalysis of three different Fe sites (denoted as Fe1, Fe2 and Fe3) of Fe2O3-Ovac caused by one Ovac.
From: Constructing multiple active sites in iron oxide catalysts for improving carbonylation reactions
a Architecture of three different Fe sites on Fe2O3-Ovac; (b) Fe1-Fe3: PhI activation; (c) Fe1-Fe2: CO insertion; (d) Fe3-Fe1-Fe2: C-N coupling. Note: Fe2O3-Ovac represents Fe2O3(104)-Ovac surfaces.
