Figure 3
Comparison between the respective iron oxide phases occurring during the reduction process of Fe2O3@CMK-1 and bulk haematite: (a) bulk Fe3O4 and bulk Fe1−xO versus Fe3O4@CMK-1 and Fe1−xO@CMK-1; (b) bulk Fe2O3 and bulk Fe0 versus Fe2O3@CMK-1 and Fe0@CMK-3. |