Hydrothermal synthesis of iron phosphate microspheres constructed by mesoporous polyhedral nanocrystals

Novel monodispersed Fe5(PO4)4(OH)3·H2O microspheres with a diameter of several micrometers were successfully obtained by a simple, template-free hydrothermal route. FePO4 microspheres constructed by mesoporous polyhedral FePO4 nanocrystals could be easily prepared by calcining an Fe5(PO4)4(OH)3·2H2O precursor.156