Synthesis of highly stable γ-FeO ferrofluid dispersed in liquid paraffin, motor oil and sunflower oil for heat transfer applications.

This article aims at the synthesis of highly stable γ-FeO magnetic nanoparticles and their ferrofluids using different base liquids such as liquid paraffin, motor oil and sunflower oil for heat transfer applications. Phase and morphology of the synthesized nanoparticles were probed using XRD, SEM and FTIR spectroscopy. The average nanoparticle size of γ-FeO magnetic nanoparticles was found to be 13 nm.