Polyethylenimine (PEI)-protected Prussian blue nanocubes have been simply synthesized by heating an acidic mixture of PEI, FeCl3, K3Fe(CN)(6), and KCI. The experiment results presented here demonstrate that the pH of the mixture plays an important role in controlling the shape and composition of the resultant product.
Thermal Conversion of Hollow Prussian Blue Nanoparticles into Nanoporous Iron Oxides with Crystallized Hematite Phase
recently demonstrated that Prussianblue (PB) coordination polymers can be successfully etched by acidic solution for the preparation of hollow PB nanoparticles (Angew. Chem. Int. Ed.2012, 51, 984). In this paper, by using hollow PB nanoparticles as starting materials, we calcined them under various conditions to prepare nanoporous Fe oxides with a crystallized -Fe2O3 (hematite) phase. The obtained particles