Synthesis of Fe4[Fe(CN)6]3·14H2O Nanopowder by Co-Precipitation Technique and Effect of Heat Treatment

OandironoxideswasrevealedbytheFouriertransforminfraredspectroscopy. Thecrystalstructure,morphologyandsizeofnanocrystalliteswereinvestigatedbyX-raydiffractionandtransmissionelectronmicroscope. Resultssuggestthatusingco-precipitationtechnique,nanopowderofironcyanidehydrate,intypicallysphericalshape,canbeobtainedand their thermal treatment also yield iron oxide nanocrystallites of spherical with good homogeneity. The sizeof the prepared nanocrystallites was found in the range 20–36 nm. It was observed that thermal treatment,typicallyat800