A novel technique by the citrate pyrolysis is developed to prepare metal ox
ide nanocrystals. In this paper details on synthesizing iron oxide nanopart
icles through this method is described. The structure and morphology of nan
oscale products have been characterized by powder X-ray diffraction (XRD) a
nd scanning electron microscopy (SEM). The obtained iron oxide particles ha
ve two lattice types and a mean particle size distribution of 20 and 50 nm,
respectively. (C) 2000 Published by Elsevier Science S.A.